A physics professor demonstrates the Doppler effect by tying a 450
Hz sound generator to a 1.0
−
m
-long rope and whirling it around her head in a horizontal circle at 100
rpm .
A. What is the difference between the highest frequency heard by a student in the classroom and the initial frequency of the sound generator? Express your answer with the appropriate units.
B. What is the difference between the lowest frequency heard by a student in the classroom and the initial frequency of the sound generator? Express your answer with the appropriate units.
Answers
The difference between the highest frequency heard by a student in the classroom and the initial frequency of the sound generator is =582.5 Hz and 619.2 Hz
briefly:-F(s) = 600 Hz, the generator's frequency
The rope's length is r = 1 m.
rotating frequency, w = 100 rpm
First, we determine the generator's speed, v (g)
v(g) = r.w
However, it should be remembered that we must convert the whirling speed from rpm to rad/s.
100 rpm is 100*2/60 rad/s.
100 rpm = 200π/60
100 rpm = 620.4 / 60
10.47 rad/s for 100 rpm.
Now, we employ this to determine the generator's speed.
v(g) = r.w
v(g) = 1 * 10.47
v(g) = 10.47 m/s
The frequency is estimated when approaching the generator as
F(a) = F(s) / [(v(g)/v) - 1)]
F(a) = 600 / [1 - (10.47/343)]
F(a) = 600 / 0.969
F(a) = 619.2 Hz
On the other hand, the frequency of the retreating generator is
F(r)=F(s)/[1 + (v(g)/v)]
F(r) = 600 / [1 + (10.47/343)]
F(r) = 600 / 1.030
F(r) = 582.5 Hz
The highest and lowest frequencies are therefore 619.2 Hz and 582.5 Hz, respectively.
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Related Questions
You have negotiated with the Omicronians for a base on the planet Omicron Persei 7. The architects working with you to plan the base need to know the acceleration of a freely falling object at the surface of the planet in order to adequately design the structures. The Omicronians have told you that the value is gOP7=7.29 flurggrom2, but your architects use the units metersecond2, and from your previous experience you know that both the Omicronians and your architects are terrible at unit conversion. Thus, it's up to you to do the unit conversion. Fortunately, you know the unit equality relationships: 5.24flurg=1meter and 1grom=0.493second. What is the value of gOP7 in the units your architects will use, in meter-second2?
Answers
Answer:
5.724 meters / second^2
Explanation:
We are given two pieces of information, 5.24 flurg = 1 meter, 1 grom = 0.493 second. If that is so, we can say that there are two possible conversion units, 5.25 flurg / meter, and 0.493 second / grom.
_____
We want to convert 7.29 flurg / grom^2 ( I believe? ) to the units meters / second^2. But, let's break this down into bits. It would be convenient to first convert 7.29 flurg / grom^2 to the units meters / grom^2, by dividing the conversion factors as to cancel out the appropriate things, which we will go into detail on a bit later ( using the first conversion factor ). Respectively we can convert meters / grom^2 to meters / grom * s, canceling out the flurg ( through the second conversion factor ). And now we would need to get rid of the grom, dividing similarly.
_____
( 1 ) ( flurg / grom^2 ) / ( flurg / meters ) - first conversion unit
= flurg / grom^2 * meters /flurg
= ( meters * flurg ) / ( grom^2 * flurg )
= meters /grom^2,
7.29 flurg / grom^2 / 5.24 flurg / meter = ( About ) 1.39 meter / grom^2
( 2 ) ( meter / grom^2 ) / ( second / grom ) - second conversion unit
= meter / grom^2 * grom / second
= ( meter * grom ) / ( grom^2 * second )
= meter / ( grom * second ),
( 1.39 meter / grom^2 ) / 0.493 second / grom = ( About ) 2.82195 meter / grom * second
( 3 ) ( 2.82195 meter / ( grom * second ) ) / 0.493 second / grom = 5.724 meter / second^2
( And thus, the value of gOP7 in the units the architects will use should be about 5.724 meters / second^2 )
The value of gOP7 in the units your architects will use is 5.724 \(m/s^2\)
Given that 5.24 flurg = 1 meter,
1 grom = 0.493 second.
First, we will convert the length units:
\(7.29 flurg / grom^2 / 5.24 flurg / meter = 1.39 meter / grom^2\)
Now we convert the time units:
\(1.39 meter / grom^2 / 0.493 second / grom = 2.82195 meter / grom * second\)
\(2.82195 meter / ( grom * second ) ) / 0.493 second / grom = 5.724 meter / second^2\)
The value of gOP7 in the units the architects will use is \(5.724m/s^2\)
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A rock, a book and a can of soda all have the same mass. Which of the following best describes their relationship?
A. They are all the same size
B. They each contain the same amount of matter.
C. They are each made of the same element.
D. They each occupy the same amount of space.
Answers
Answer:
Explanation:
d
A rock, a book and a can of soda all have the same mass. They each contain the same amount of matter.
Hence, the correct option is D.
Since the rock, book, and can of soda all have the same mass, it means that they contain the same amount of matter, regardless of their size or the material they are made of.
Mass is a measure of the amount of matter in an object, so if their masses are equal, it implies that the quantity of matter is the same in each of them.
The size, shape, and material composition can be different for each object, but their masses remain the same in this scenario.
Hence, A rock, a book and a can of soda all have the same mass. They each contain the same amount of matter.
Hence, the correct option is D.
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5.40 * 104 NS
6. A wooden ball with a mass of 0.45 kg is at rest when it is tapped by a wooden mallet that applies an
average force of 83 N to the ball. After contact with the mallet, the ball moves forward at 1.3 m/s. How
long was the mallet in contact with the ball?
A. 7.0 milliseconds
B. 3.7 milliseconds
C. 2.4 milliseconds
D. 0.59 milliseconds
Answers
Answer:
A. 7.0 milliseconds
Explanation:
We know the formula: Force = [mass( final velocity - initial velocity )] / time
using the formula:
83 = 0.45 ( 1.3 - 0 ) / time
time = ( 0.45 * 1.3 )/ 83
time = 0.585/83
time = 7.0 milliseconds
The time for the mallet in contact with the ball is 7 milliseconds.
To find the time , the given values are,
Mass = 0.45 kg
Force = 83 N
Final velocity = 1.3 m/s, Initial velocity = 0 m/s.
What is Force?According to Newton's second law of motion, Force is equal to mass that is multiplied by the acceleration.
F = m.a
where, F - Force
m - Mass
a - Acceleration
Here, Acceleration = ( Final velocity - Initial Velocity) / ( Time )
Acceleration can be defined as the change in velocity with respect to time.
Force = [mass( final velocity - initial velocity )] / time
Substituting the given values in the formula,
83 = 0.45 ( 1.3 - 0 ) / Time
Time = ( 0.45 * 1.3 )/ 83
Time = 0.585/83
Time = 7.0 milliseconds
Hence, Option A is the correct answer.
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Question 3 Point charges 1 and 2 have charges Q and Q, and are held 3.0 mm apart. The point charges exert an attractive force of 16 N on each other. Which of the following are possible values for the charges? A) Q = +1.3 x 10-7 C and Q, = +1.3 x 10-C B) Q = +1,0 X 10 Cand Q, = +1.6 X 1070 c a. 10 x 10 Cand Q, 16 x 10-70 0,- +10 x 10 Cand Q, +5.3 x 10°C E = +1.0 x 10C and Q, = -5,3 x 10°C
Answers
The possible values for the charges is Option B, Q1 = 1.0 x 10⁻⁷ C and Q2 = -1.6 x 10 ⁻¹⁴ C
The tendency of a body to change or alter its state as a result of an external cause is referred to as force. The object can change its size, shape, and direction when force is applied. A few examples include kicking a ball, yanking and pulling on the door, and mixing dough.
Force = 16N
d = 3.0 x 10 ⁻³m
F = kQ1Q2/d²
16 = 9x10⁹/(3x10⁻³)² Q1Q2
Q1.Q2 = 1.6x10⁻¹⁴
Now that Q1.Q2 = 1.6x10⁻¹⁴
and force is attractive the charges must be of opposite sign
Therefore, Option B is correct
Q1 = 1.0 x 10⁻⁷ C and Q2 = -1.6 x 10 ⁻¹⁴ C
A fundamental force, also known as a fundamental interaction, is any of the four fundamental forces in physics—gravitational, electromagnetic, powerful, and weak—that govern how things or particles interact as well as how some particles decay. All recognised natural forces originate from these basic forces.
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You ride your bike along a straight line from your house to a store 1704 m away. On your way back, you stop at a friend's house which is halfway between your house and the store.a. What is your displacement?b. What is the total distance traveled?c. After talking to your friend, you continue to your house. When you arrive back at your house, what is your displacement?d. What is the total distance you have traveled since first leaving your house?
Answers
According to the question, the answer of distance will be:
a. Your displacement is 0 m.
b. The total distance traveled is 3408 m.
c. Your displacement is 0 m.
d. The total distance you have traveled since first leaving your house is 3408 m.
What is distance?
Distance is the amount of space between two objects or points. It is usually measured in units of length such as kilometers, miles, meters, or feet.
a)Displacement is defined as the total distance in a specific direction, and since you did not move in any direction, your displacement is 0 m.
b) You traveled 1704 m to the store and 1704 m back to your friend's house, so the total distance traveled is 3408 m.
c) Displacement is defined as the total distance in a specific direction, and since you did not move in any direction, your displacement is 0 m.
d) You traveled 1704 m to the store and 1704 m back to your house, so the total distance you have traveled since first leaving your house is 3408 m.
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Which of the following examples describes mechanical efficiency?
A. greasing a surface helps reduce friction
OB. a longer lever helps lift more weight
O C. a fixed pulley changes the direction you
pull
D. pushing the object down a slope is less
work
Answers
Answer:
Hello
I think the first one is correct.
Explanation:
A car weighing 12,500 n starts from rest and accelerates to 83. 0 km/h in 5. 00 s. The friction force is 1350 n. Find the applied force produced by the engine.
Answers
The applied force produced by the engine is 7217.3N.
W = 12500
v₁ = 0
v (friction) = 83km/h = 23 m/s
t = 5s
f = 1350N
mass of body = W / g
=12500/9.8
=1275.5Kg
v(friction) = v + at
substitute in eqn 1
23 = 5a
a = 4.6 m/s²
Force Net = F₁ + F₂ + F₃ = ma
F (engine) = ma + F
= 1275 (4.6) + 1350
= 7217.3N
Force is a fundamental concept in physics that refers to any influence that causes an object to undergo a change in motion. It is a vector quantity, meaning it has both magnitude and direction. Force is measured in units of newtons (N) and is usually represented by the symbol F.
According to Newton's laws of motion, the net force acting on an object is equal to its mass times its acceleration. This means that if a force is applied to an object, it will accelerate in the direction of the force, with the magnitude of the acceleration depending on the mass of the object and the magnitude of the force.
Forces can be either contact or non-contact. Contact forces occur when two objects are in direct physical contacts with each other, such as the force of friction or the force of a hammer hitting a nail. Non-contact forces occur when two objects are not in physical contacts, such as the force of gravity or the force of an electric field.
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Sound travels through air at a speed of 342m/s
342
m
/
s
at room temperature. What is the frequency of a sound wave with a wavelength of 1.8m
1.8
m
Answers
Answer:
Explanation:
The formula relating the speed of sound, frequency, and wavelength is:
speed = frequency x wavelength
Rearranging this formula to solve for frequency:
frequency = speed / wavelength
Substituting the given values:
frequency = 342 m/s / 1.8 m
frequency = 190 Hz
Therefore, the frequency of the sound wave is 190 Hz.
A candle is placed 14 cm in front of a concave mirror. The image of the candle is focused on a sheet of paper that is exactly 21 cm in front of the mirror. what is the magnification of the image
Answers
Answer:
The magnification of the image is \(M = -1.5\)
Explanation:
From the question we are told that
The object distance is \(u = 14 cm\)
The image distance is \(v = 21 \ cm\)
The magnification of the image is mathematically represented as
\(M = - \frac{v}{u}\)
substituting values
\(M = - \frac{21}{14}\)
\(M = -1.5\)
The negative value means that the image is real , inverted and enlarged
Landslides are an example of
Answers
Answer: Landslides are a type of "mass wasting," which denotes any down-slope movement of soil and rock under the direct influence of gravity. ... Debris flows (commonly referred to as mudflows or mudslides) and rock falls are examples of common landslide types. Almost every landslide has multiple causes.
What is Concave lenses ?
Answers
Explanation:
A concave lens is also known as a diverging lens because it is shaped round inwards at the centre and bulges outwards through the edges, making the light diverge. They are used to treat myopia as they make faraway objects look smaller than they are.
What is the current if the electricpotential is 120 V and the resistance is
60 ohms?
Answers
Answer:
2 amperes
Explanation:
V = IR
V/R = I
120 v / 60 ohms = 2 amps
Explain why a solid has a definite shape
and volume.
6. How does the arrangement of atoms in most
solids differ from the arrangement of atoms in
a liquid?
Answers
According to the given statement Atoms in solids vibrate motionless, whereas atoms in fluid move.
Where are atoms found?Everything, that's correct. Matter includes all liquids, solids, sand, plants, animals, and clouds. The building components of matter are called atoms. All stuff is made up of numerous atoms, like how this house is built of many bricks. Because they are not living entities, atoms don't require food, water, or oxygen, and they can't procreate.
Can you kill an atom?The law of energy conservation states that matter cannot be generated or destroyed. As a result, an atom could be destroyed or divided into smaller particles. The electron, proton, the neutron are the three fundamental particles that make up an atom.
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A uniform brick of length 24 m is placed over the edge of a horizontal surface with a maximum overhang of 12 m attained without tipping.
Answers
The maximum overhang possible for the two bricks (without tripping) is 15m.
What is the detailed solution to the above question?Given,
Length of the brick (L) = 24m
Maximum overhang = 12m
Length of second brick = 24m
Maximum overhang for two bricks =?
Now,
Generally, the equation for the value x (mid-point joining the bricks) is given as,
x = 0.25 × L
=0.25 × 12
= 3m
Hence,
The maximum overhang possible for the two bricks (without tripping) will be,
L₀ = L/2 + x
= 24/2 + 3
= 12 + 3
= 15m
Therefore, The maximum overhang possible for the two bricks (without tripping) is 15m.
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scott and jafar are ready to work a problem. in this simulation, assume the coordinates of the points are as follows. a (0 s, 30 m); b (10 s, 50 m); c (20 s, 38 m); d (30 s, 0 m); e (40 s, −38 m); and f (50 s, −50 m) recall the definitions of average speed, vavg ≡ d δt , and average velocity in the x direction, vx ,avg ≡ δx δt . find the average velocity from circled a to circled b.
Answers
Answer:
Explanation:
point a represents time 0 and position coordinate 30
point b represents time 10 s , and position coordinate 50 m .
time elapsed = 10 - 0 = 10 s .
displacement = 50 m - 30 m
= 20 m
average velocity = displacement / time elapsed
= 20 / 10
= 2 m /s .
A small object with mass 3.95 kg moves counterclockwise with constant speed 1.65 rad/s in a circle of radius 2.95 m centered at the origin. It starts at the point with position vector 2.95î m. Then it undergoes an angular displacement of 9.10 rad.
(a) What is its new position vector? _____ m
(b) In what quadrant is the particle located and what angle does its position vector make with the positive x-axis? ______ quadrant at _______°
(c) What is its velocity? _____ m/s
(d) In what direction is it moving? _____ ° from the +x direction
(e) What is its acceleration? _____ m/s2
(f) Make a sketch of its position, velocity, and acceleration vectors.
Answers
a)New position vector in vector form= r = 0.233404 î + 2.94056j m
b) Lies in second quadrant at 161.391°
c)Velocity =4.8675 m/s
d)It is moving in a direction making 161.391° with positive x-direction.
e)Acceleration will be centripetal acceleration (8.031 m/s²).
Given:
Mass of the object m = 3.95 kg
ω=1.65 rad/s
Radius of the circle = 2.95 m
a)
new position vector in vector form
=R cos1.65 î + R sin 1.65 j
= 2.95 cos1.65 î +2.95 sin1.65 j
= 2.95 x 0.07912 î + 2.95 x 0.9968 j
r = 0.233404 î + 2.94056j
b)
Angular Displacement = θ₀ = 9.10 rad
9.10 radian = 180/π× 9/10 degree
= 521.391°
=521.391°- 360°
=161.391°
This will lie in second quadrant.
Angle made with positive x-axis
=161.391°
c)
Velocity
v = ω R
= 1.65 x 2.95
=4.8675 m/s
d)
It is moving in a direction making 161.391° with positive x-direction.
e)
Acceleration will be centripetal acceleration.
= v²/R
=(4.8675)² / 2.95
=23.6925562 / 2.95
=8.031 m/s²
f) Position, Velocity and Acceleration graph:
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a) New position vector is r = 0.233404 î + 2.94056j m
b) Lies in second quadrant at 161.391°
c) Velocity =4.8675 m/s
d) It is moving in a direction making 161.391° with positive x-direction.
e) Acceleration will be centripetal acceleration (8.031 m/s²).
Given:
Mass of the object m = 3.95 kg
ω=1.65 rad/s
The radius of the circle = 2.95 m
a) new position vector in vector form
r =R cos1.65 î + R sin 1.65 j
r = 2.95 cos1.65 î +2.95 sin1.65 j
r = 2.95 x 0.07912 î + 2.95 x 0.9968 j
r = 0.233404 î + 2.94056j
b) Angular Displacement = θ₀ = 9.10 rad
9.10 radian = 180/π× 9/10 degree
= 521.391°
= 521.391°- 360°
=161.391°
This will lie in the second quadrant.
Angle made with the positive x-axis =161.391°
c) Velocity
v = ω R
v = 1.65 x 2.95
v = 4.8675 m/s
d) It is moving in a direction making 161.391° with positive x-direction.
e) Acceleration will be centripetal acceleration.= v²/R
=(4.8675)² / 2.95
=23.6925562 / 2.95
=8.031 m/s²
f) Position, Velocity, and Acceleration graph:
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Give me the real answer
Answers
Answer: 12,339
Explanation:
Why does the force of gravity on Earth always pull things down?
a
The force of gravity on Earth is always pointing down
b
The force of gravity on Earth always points to the center of the planet
c
The force of gravity on Earth is a force that repulses
d
The force of gravity on Earth is a force that pulls objects away from each other
Answers
Explanation:
the answer is D because of inertia aka the force that pulls obejects downs
b. printed circuit board A length th of copper track on a has a cross-sectional area of 5x108 m². The Current in the track is 3.5 mA. Your are with some useful information about of copper contains 6. 0x1026 atoms. show that the electron is about 10²⁹ m². copper. has a mass of 8.9x10³kg. skg of copper 29 for copper density number densi provided r. 1m²
Answers
Answer:
The change in mean drift velocity for electrons as they pass from one end of the wire to the other is 3.506 x 10⁻⁷ m/s and average acceleration of the electrons is 4.38 x 10⁻¹⁵ m/s².
The given parameters;
Current flowing in the wire, I = 4.00 mA
Initial diameter of the wire, d₁ = 4 mm = 0.004 m
Final diameter of the wire, d₂ = 1 mm = 0.001 m
Length of wire, L = 2.00 m
Density of electron in the copper, n = 8.5 x 10²⁸ /m³
The initial area of the copper wire;
The final area of the copper wire;
The initial drift velocity of the electrons is calculated as;
The final drift velocity of the electrons is calculated as;
The change in the mean drift velocity is calculated as;
The time of motion of electrons for the initial wire diameter is calculated as;
The time of motion of electrons for the final wire diameter is calculated as;
The average acceleration of the electrons is calculated as;
Thus, the change in mean drift velocity for electrons as they pass from one end of the wire to the other is 3.506 x 10⁻⁷ m/s and average acceleration of the electrons is 4.38 x 10⁻¹⁵ m/s².
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Explanation:
The changing mean drift velocity of the electrons plays out at 3.506 x 10⁻⁷ m/s along with an average acceleration nearing 4.38 x 10⁻¹⁵ m/s².
How to solveAs the electrons traverse one end of the wire to another, their mean drift velocity undergoes a shift of 3.506 x 10⁻⁷ m/s with an average acceleration of 4.38 x 10⁻¹⁵ m/s² in accordance with the following parameters:
- The current flowing through the wire is at 4.00 mA.
- The original diameter of the wire, d₁, measures at 4 mm or 0.004 m.
- Conversely, the final diameter, d₂, displays a measurement of 1 mm or 0.001 m.
- The length of the entire wire is consistent, measuring at 2 meters.
- Notably, the density of electrons present within copper reaches an estimated value of 8.5 x 10²⁸ /m³.
Calculations regarding both initial and final area coverage provided by copper must be explored along with numerical data involving the two varying drift velocities for accurate results.
Thus, we arrive at the change rate of the mean drift velocity between points in the wire as well as the plenitude of electron acceleration achieved after contemplation into the corresponding motion periods.
The conclusion reflects that our measurements find the changing mean drift velocity of the electrons plays out at 3.506 x 10⁻⁷ m/s along with an average acceleration nearing 4.38 x 10⁻¹⁵ m/s².
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The magnitude of the electric field due to a point charge object at a distance 4.0 m is 9 N/C. From the same
charged object the electric field of magnitude, 16 N/C will be at a distance of
Answers
The electric field of magnitude 16 N/C will be at a distance of 6.0 meters from the charged object.
The magnitude of the electric field due to a point charge object follows the inverse square law, which states that the magnitude of the electric field is inversely proportional to the square of the distance from the charged object. Mathematically, this is expressed as:
\(E = k*q/r^2\)
where E is the electric field, k is Coulomb's constant (\(k = 9 x 10^9 N*m^2/C^2\)), q is the charge of the object, and r is the distance from the object.
We can use this formula to find the distance at which the electric field has a magnitude of 16 N/C. Let's call this distance x:
16 = \(k*q/x^2\)
We can rearrange this equation to solve for x:
x = \(\sqrt(k*q/16)\)
To find q, we need another piece of information. We know that the electric field has a magnitude of 9 N/C at a distance of 4.0 m. Using the same formula as before, we can solve for q:
9 = \(k*q/4^2\)
q = \(9*4^2/k\)
Now we can substitute this value for q into the equation for x:
x =\(\sqrt(k*(9*4^2/k)/16)\)
x =\(\sqrt(9*4^2/16)\)
x = \(\sqrt(36)\)
x = 6.0 meters
Therefore, the electric field of magnitude 16 N/C will be at a distance of 6.0 meters from the charged object.
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a 1000 kg car traveling at 70 m/s takes 3 m to stop under full braking. the same car under similar road conditions, traveling at 140 m/ s takes how long to stop under full braking?
Answers
Answer:
0.21 SECONDS
Explanation:
THE CAR TRAVELS AT A SPEED OF 140M/S AND A DISTANCE AS THE PREVIOUS = 3M THEREFOR S=D/T, T=D/S= 3/140= 0.12 SEC
Derive Lorentz transformation
Answers
Lorentz transformation is a mathematical framework that describes how the coordinates of an event in space and time change for two observers in relative motion.
What is Lorentz transformation?Consider two inertial frames of reference, S and S', moving relative to each other along the x-axis with a constant velocity v. Let an event occur at position (x, y, z, t) in frame S, and let (x', y', z', t') be the corresponding position in frame S'.
The transformation equations for space and time are given by:
\(x' = γ(x - vt)\\y' = y\\z' = z\\t' = γ(t - vx/c^2)\)
where\(γ = 1/√(1 - v^2/c^2)\) is the Lorentz factor, and c is the speed of light.
These equations show how the coordinates of an event in one frame of reference are related to the coordinates in another frame of reference that is moving relative to the first frame. They are known as the Lorentz transformations and are a fundamental aspect of special relativity.
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a bar of gold measures .113m *.0254m*.0106m. how many gallons of water have the same mass as this bar?
Answers
The volume (in gallon) of water that have the same mass as the bar of gold is 0.153 gallon
How do I determine the volume (in gallon) of water?We'll begin by obtaining the mass of the gold bar. This is given below:
Volume of gold bar = 0.113 m × 0.0254 m × 0.0106 m = 0.00003 m³Density of gold = 19300 kg/m³Mass of gold bar =?Density = mass / volume
Cross multiply
Mass = Density × Volume
Mass of gold bar = 19300 × 0.00003
Mass of gold bar = 0.579 Kg
Finally, we shall determine the volume of water having the same mass as 0.579 Kg of the gold bar. Details below:
Mass of gold bar = 0.579 KgMass of water = Mass of gold bar = 0.579 KgDensity of water = 1000 Kg/m³ Volume of water = ?Volume = mass / density
Volume of water = 0.579 / 1000
Volume of water = 0.000579 m³
Multiply by 264.172 to express in gallon
Volume of water = 0.000579 × 264.172
Volume of water = 0.153 gallon
Thus, we can conclude that the volume of the water is 0.153 gallon
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How the government can ensure basic human dignity is maintained in relation to safe and healthy living
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To ensure basic human dignity in relation to safe and healthy living, governments can implement various measures such as accessible healthcare, adequate housing, and sanitation and clean water.
How government can ensure basic human dignity is maintainedGovernments should place a high priority on ensuring that everyone has access to healthcare services, enabling them to receive the essential medical care without suffering financial difficulty. This entails providing access to necessary pharmaceuticals, cheap healthcare, and a strong healthcare system.
All citizens should have access to affordable and good housing, according to governments. Policies may include restrictions on rental costs, programs to expand the supply of affordable housing, and efforts to combat homelessness. Basic hygienic and safety criteria should be met by housing.
Governments must make sure that everyone has access to clean, safe drinking water and adequate sanitary facilities. The spread of diseases and the maintenance of sanitary living circumstances can be aided by investments in sewage systems, water treatment facilities, and public hygiene education.
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A fish is hooked on a line that is wound around the spool of a fishing reel. The reel has a mass of 652 g and a diameter of 10 cm. After 5 seconds, the reel is spinning with an angular velocity of 306 rad/s Assuming that the fish was pulling on the line with a constant force, what was the magnitude of this force?
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The magnitude of the force exerted by the fish is 3,052.5 N.
The given parameters;
mass of the reel, m = 652 g = 0.652 kgdiameter of the reel, d = 10 cm radius of the reel, r= 5 cm = 0.05 mtime of motion, t = 5 sangular speed of the reel, ω = 306 rad/sAccording to Newton's third law, the force exerted by the reel is equal in magnitude to the force fish exerted on the reel.
The centripetal force of the reel = force exerted by the fish
\(F_c = m\omega^2 r\\\\F_c = 0.652 \times (306)^2 \times 0.05\\\\F_c = 3,052.5 \ N\)
Thus, the magnitude of the force exerted by the fish is 3,052.5 N.
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a duck waddles 3.5m east and 9.0 north. what is the magnitude of the ducks displacement with respect to its original position
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Answer:
if I am correct you can mark me as brainliest
A ball is thrown with a velocity of 10 m/s at a 25º from the horizontal. How far does the ball travel?
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Answer:
use a=v-u/t formula it will be correct
What is a force that acts upon a projectile launched into the air?
1. Centripetal
2. Gravity
3. Trajectory
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The force that acts upon a projectile launched into the air is gravity.
What is gravity?Gravity is a fundamental force of nature that causes all physical objects to attract each other. It is the force that pulls objects towards each other, and it is the reason why objects with mass are attracted towards the center of the Earth.
When an object is launched into the air, it is subject to the force of gravity, which pulls the object down towards the Earth. As the object moves through the air, the force of gravity causes it to follow a curved path, known as a trajectory, until it eventually hits the ground. While other forces such as air resistance may also act upon the projectile, gravity is the primary force that determines the path of the projectile.
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15. a) The diagram below shows to answer the question that follow show State and explain the effect on the height, h, when the thistle funnel is of the liquids (2 marks) ved upwards towards the surface
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When the thistle funnel is moved upwards towards the surface of the liquids, the height (h) decrease.
What happens when the thistle funnel is moved upward?
An important principle outlined by Pascal's law states that any fluid (in this instance, liquids) experiences equal transmission of force in every direction within it. Hence, there is an intimate relationship between the height of a liquid column and its pressure.
Raising a thistle funnel reduces this height causing loss of weight from above this point thus decreasing its pressure.
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See complete question in the attached image.
what is the speed of light in quartz
Answers
Answer:
1.95 x 10^8 m/s.
Explanation:
Answer:
the answer is 1.95 x 10^8 m/s
Explanation: