What is another reason (related to the etoh) the water bath must not reach high temperatures?

Explanation:

by finding the distance between two successful crest

Answer:

the wavelength can be measured as the distance from crest to crest  or from trough to trough , the wavelength of a wave can be measured as the distance from a point on a wave to the corresponding point on the next cycle of the wave.

Explanation:

To determine the position of the minute hand at 8:15 a.m., we can use the following approach:

Convert the time to radians: At 8:15 a.m., the minute hand is 75% of the way from the 8:00 a.m. mark to the 9:00 a.m. mark. Since the minute hand travels 360 degrees in 60 minutes, it travels 6 degrees per minute. Therefore, at 8:15 a.m., it has traveled 90 degrees from the 8:00 a.m. mark. This is equivalent to (90/360) x 2π radians = π/2 radians. Use trigonometry to determine the position: Since the minute hand is 3.00 cm long and pointing in the direction of the positive x-axis at 8:15 a.m., its position can be described by the coordinates (3.00 cos(π/2), 3.00 sin(π/2)) = (0, 3.00). Therefore, the minute hand is pointing straight up at 8:15 a.m. Note that the x-axis points in the same direction as the minute hand at 8:15 a.m., while the y-axis points in the same direction as the minute hand at 8:00 a.m. This means that the x-axis is perpendicular to the minute hand at 8:00 a.m., and the y-axis is perpendicular to the minute hand at 8:15 a.m.

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Answer:

  0.83 m or 5.57 m

Explanation:

Destructive interference will occur when the distances from the speakers differ by 1/2 wavelength.

The length of 1 cycle of 72.4 Hz is ...

  λ = v/f = (343 m/s)/(72.4 Hz) ≈ 4.738 m

So, the distance of the listener from speaker B is ...

  3.2 m ± (4.738 m)/2 = {0.83 m, 5.57 m} . . . either of these distances

_____

The location could be at additional multiples of 4.738 m, but we think not. The sound intensity drops off with the square of the distance from the speaker, so identical sound waves from the speakers will sound quite different at different distances from the speakers. For best interference, the distances need to be as close to the same as possible. That will be at 3.2 m and 5.57 m.

_____

Comment on the speed of sound

We don't know what speed you are to use for the speed of sound. We have used 343 m/s. Some sources use 340 m/s, which will give a result different by 2 or 3 cm.

Answer:

5.57 for acellus

Explanation:

Answer:

Her measurements will be more accurate if she uses a cloth tape

measure instead of a ruler.

Explanation: (apex)

Answer:Science is a method of learning things about the world and environment we live in today . It gives us a better understanding of the natural world and how it works

Explanation:

Answer:

The pressure altitude is \(A = 10\ km\)

The density altitude is \(\rho = 0.429 kg/m^3\)

Explanation:

From the question we are told that

The outside pressure is \(P_o = 2.65*10^{4} N/m^2\)

The outside temperature is \(T_o = 215 \ K\)

Generally the density altitude is mathematically represented as

\(\rho = \frac{P_o }{RT}\)

Here R is the gas constant with value \(R = 287\ J/kg/K\)

So

\(\rho = \frac{2.65 (*10^{4}}{287 * 215}\)

=> \(\rho = 0.429 kg/m^3\)

Generally the altitude at which the pressure in the question is experience is

\(A = 10\ km\)

Thus the pressure altitude is  \(A =  10\ km\)

The object will attract the plastic rod. (Option A) when the object was brought close to the charged glass rod, it induced an opposite charge on the side of the object facing the glass rod, and a like charge on the side facing away from the glass rod.

This process is known as electrostatic induction. The attracted charges of the opposite polarity in the object will be redistributed in the plastic rod, resulting in an attraction between the object and the plastic rod. Therefore, when the object is held near the plastic rod, it will attract the plastic rod.

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Answer:

24.15 m

Explanation:

Given,

Time = 2.219s

Using the formula,

s = u×t + (1/2)×a×(t^2)

Where,

distance = s

time = t

initial speed = u

acceleration = a

Now, s is the unknown height, a = g = 9.81 m/(s^2), t = 2.219s and initial is assumed 0.

Putting the formula in use, we get,

h = 0 + (1/2)×(2.219^2)*9.81
h = 24.15 metres

Hope it helps!

The height of the cliff is approximately 24.5 meters.

When an object is dropped from a height, it accelerates toward the ground due to the force of gravity. The time it takes for the object to fall is directly proportional to the square root of the height.

Using the equation h = (1/2)gt^2 where h is the height of the cliff, g is the acceleration due to gravity (9.8 m/s^2), and t is the time

h = (1/2) x 9.8 m/s^2 x (2.219 s)^2

h = 24.5 meters

The force of gravity is what causes objects to fall toward the Earth, and its constant value allows us to calculate the height of an object dropped from a known height based on the time it takes to fall.

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In situation 4 will an object always stay motionless. When the applied forces add up to zero.

Force is defined as the push or pulls applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.

The moment in the body is only due to the applied force. An object in scenario 4 remains stationary at all times. When all of the applied forces total up to zero.

Hence option 4 is correct.

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Answer:

(B) Conduction

Explanation:

Answer:

a ) conduction

Explanation:

it's a because if u think about it a conductor keeps the heat from getting to a certain part of the metal

Global climate change is a change in the atmosphere that occurs all over the planet simultaneously. Although these changes have occurred in certain periods in a natural way, we are currently facing global climatic changes caused by human activities, which have inconsequentially modified the natural harmony of climatic conditions.

The climate change we are currently experiencing refers to global warming, where the earth's temperature is increasing on an alarming and worrying scale. Global warming has caused the melting of the polar ice caps, harmed marine life, increased the surface temperature of the oceans, caused droughts and floods, in addition to promoting an abnormal and harmful sensation to living beings.

These changes are the result of the constant use of fossil fuels, deforestation, pollution and other human activities that have degraded nature and the atmosphere. This is because these activities, mainly the use of fossil fuels, promote a large production of carbon dioxide, which, when released into the atmosphere, causes holes in the ozone layer that protects our planet from the sun's rays. With the depletion of the ozone layer, the planet is left unprotected and receives sun rays at harmful intensities.

Therefore, we can conclude that the global climate changes that we are experiencing are the consequences of our own actions and that is why it is our responsibility to repair the damage caused by global warming and to promote measures that reduce it.

Answer:

yeah

Explanation:

the answer is right.

Answer:

KE=1/2*m*v^2

KE=1/2*250*42^2

KE=220550 J

Explanation:

The example that is NOT an example of Simple Harmonic Motion is:

A ball rolling down a hill.

Simple Harmonic Motion is a type of periodic motion where the restoring force is proportional to the displacement from equilibrium and is directed towards the equilibrium point. The classic example of simple harmonic motion is the motion of a mass attached to a spring that is oscillating back and forth. Other examples of simple harmonic motion include a pendulum swinging back and forth and the vibration of a guitar string.

A ball rolling down a hill does not exhibit simple harmonic motion because it does not have a restoring force that is proportional to the displacement from equilibrium. The motion of the ball is affected by the force of gravity, which is not directed towards the equilibrium point, and the frictional force between the ball and the surface of the hill, which is not proportional to the displacement from equilibrium. Therefore, it is not an example of simple harmonic motion.

Answer:

I'm fairly certain it's 1,800

Explanation:

The efficiency of the wedge with force F=900 N displaces the wedge 0.10 m is 55.55%  or 56%.

The efficiency of the machine equals the ratio of output energy and input energy. It is also defined as the ratio of work done on a load by the machine to the work done on the effort by the machine.

A load is defined as the weight lifted by the machine. The effort is defined as the force applied to bring the desired change in the load. Work done is defined as the product of force and displacement.

The efficiency, η = Output power / Input power, and the highest efficiency of the machine is equal to one. The efficiency of the machine has no unit. The efficiency η = (Actual work done / Ideal work done) × 100.

From the given,

Force = 900 N

Displacement = 0.1 m

Work done = F × s = 900×0.1 = 90 J

Actual work done = 50 J

Efficiency,η = (50/90) × 100

           η  = 55.55 %

Thus, the efficiency of the wedge is 55.56%.

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Answer:

22

Explanation:

becuase is you do 10kg times 2.2= 22m/s

Object B has a mass of 10 kg and is moving at a velocity of 2.2 m/s. So object B’s momentum is 22 kg.

The momentum of an object is given with the aid of the made from its mass and the rate. this may be understood genuinely with the help of an instance. A Cricket ball is heavier than a tennis ball. If each of the balls is thrown at the same speed. Greater pressure is required to forestall the cricket ball.

Momentum is the amount of movement and is compounded by using the quantity of the problem moved and the velocity with which it moves. The item has a tendency to be in movement and therefore is a vector amount. it's far determined by using the made from the mass of the object and its velocity.

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The magnitude of the electric field is 17.6 N/C.

The electric field can be found by taking the negative of the gradient of the electric potential, which is the rate of change of electric potential with respect to position:

\(E = -dV/dx\)

where E is the electric field, V is the electric potential, and x is the position.

Using the given values, we can calculate the change in potential between the two points:

\(\Delta V = V_{(x=9.71)} - V_{(x=9.36)} = 6.88\  V - 6.84 \ V = 0.04\  V\)

We can also calculate the distance between the two points:

\(\Delta x = 9.71 - 9.36 = 0.35 \ m\)

Then, we can find the magnitude of the electric field:

\(E = -\Delta V/\Delta x = -0.04 \ V / 0.35 \ m = -0.114 \ N/C\)

However, the question asks for the magnitude of the electric field, which is a positive value. Therefore, we take the absolute value:

|E| = 0.114 N/C

Therefore, the magnitude of the electric field is 0.114 N/C.

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Answer:

15.49 m/s

Explanation:

We know that the stopping distance is ,

=> s = u²/2(-a)

So that ,

=> 20m = u² / 2* 6m/s²

=> u² = 240m²/s²

=> u = √240 m²/s²

=> u = 15.49 m/s

**Edits are welcomed**

The correct answer is e. 0.25. According to the Law of Universal Gravitation, the force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.

This means that when the distance between the centers of two objects is doubled, the force between them is reduced to 1/4 of its original value.

Therefore, if the distance between the centers of two objects is doubled and the masses remain constant, the force between the objects is multiplied by a factor of 1/4, or 0.25. This is because the inverse square law states that the force decreases exponentially as the distance between the objects increases.

Understanding this law is important in many fields, including astronomy, physics, and engineering, as it helps to explain the behavior of celestial bodies and the forces that govern their motion.
According to the Law of Universal Gravitation, the gravitational force (F) between two objects with masses (m1 and m2) and a distance (r) between their centers is given by the equation:

F = G * (m1 * m2) / r^2

where G is the gravitational constant.

When the distance between the centers of the objects is doubled (2r), the new gravitational force (F') can be calculated as follows:

F' = G * (m1 * m2) / (2r)^2

Now, we can simplify this equation:

F' = G * (m1 * m2) / (4 * r^2)

From the original equation, we know that F = G * (m1 * m2) / r^2. Therefore, we can rewrite the new equation as:

F' = (1/4) * F

This shows that when the distance between the centers of two objects is doubled, the force between the objects is multiplied by a factor of 1/4 (0.25).

So, the correct answer is e. 0.25.

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The frequency of the violet light is\(7.5 x 10^14 Hz (Hertz).\)

The frequency of the wave is determined by dividing the velocity of light by its wavelength.

\(v=f/λWhere:v = velocity of light f = frequency λ = wavelength of the light\)

The speed of light is\(3.00 x 10^8\) meters per second (m/s).

To convert 400 cm into meters, divide 400 by 100. 400 cm = 4 m

Therefore,λ = 4 meters

Plugging these values into the formula, \(v = (3.00 x 10^8 m/s) / (4 m) = 7.5 x 10^14 Hz\)

So, the frequency of the violet light with a wavelength of \(400 cm is 7.5 x 10^14 Hz.\)

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The experiment is not accurate since the both rats get the tranquilizer and there is no control setting.

The quest for data and information is what would cause a scientist to perform an experiment. We know that an experiment is one that an experiment is one that we have to find the effect of the independent variable on the dependent variable.

In this case, the independent variable is the administration of the dose of the drug while the dependent variable is the number of hours that the pet rats are made to sleep.

Let us note that an experiment ought to have a control setting. The control setting of the experiment is what would serve to validate the experiment as we know. We can see that this experiment does not have a control setting therefore it is not accurate. This experiment would need to be reviewed a control setting should be added.

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Answer:Control S, Command S on MAC=Save

To calculate the kilowatt hours of electricity generated we need to consider the following factors: the area of the panels, their efficiency, and the average solar radiation.

First, let's calculate the total energy incident on the panels per day.  The average solar radiation incident on the panels is 360 W/m². So, the total energy incident on the panels per day is:

Energy per day = Average solar radiation * Area

= 360 W/m² * 54 m²

= 19,440 W

Next, we need to consider the efficiency of the panels. The panels have an efficiency of 10%. So, the energy generated by the panels per day is: Energy generated per day = Energy per day * Efficiency

= 19,440 W * 0.10

= 1,944 W

To convert this to kilowatt hours (kWh), we divide the energy generated per day by 1,000 (to convert watts to kilowatts) and multiply by the number of days in the month:

Energy generated in kWh = (Energy generated per day / 1000) * Number of days

= (1,944 W / 1000) * 30 days

= 58.32 kWh

Therefore, the solar panels will generate approximately 58.32 kilowatt hours of electricity in a 30-day month.

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(a)The component of the force Fa and Fb is Faₓ = 7.15 kN, \(F_a_y\) = 1.92 kN and Fbₓ = 6.9 kN, \(F_b_y\) = 2.65 kN.

(b) The projection of Pa and Pb of F onto the a and b axes is Pa = 5.63 kN and  2.52 kN.

(a)The component of the force Fa and Fb is calculated as follows;

Faₓ = 7.4 kN x cos(15) = 7.15 kN

\(F_a_y\) = 7.4 kN x sin (15) = 1.92 kN

Fbₓ = 7.4 kN x cos (21) = 6.9 kN

\(F_b_y\) = 7.4 kN x sin (21) = 2.65 kN

(b) The projection of Pa and Pb of F onto the a and b axes is calculated as follows;

angle opposite Pa = 90 - (31 + 21) = 38⁰

angle opposite Pb = 31 - 15 = 16⁰

angle opposite F = 180 - (38 + 16) = 126⁰

F/sin126 = Pa / sin38

7.4 / sin126 = Pa / sin 38

Pa = 7.4(sin 38 / sin 126)

Pa = 5.63 kN

F/sin126 = Pb / sin16

7.4 / sin126 = Pb / sin 16

Pb = 7.4(sin 16 / sin126)

Pb = 2.52 kN

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The missing part of the question is in the image attached

Answer:

52 feet away from the nba court

Draymond Green and Klay Thompson wanted to make fun of Steph Curry. Kay could have thrown a balloon horizontally at 50 meters per second from a bridge that was 150 meters high, and it would have landed 276.5 meters away.

There are three equations of motion given by Newton,

v = u + at

S = ut + 1/2 × a × t²

v² - u² = 2 × a × s

By using the second equation of the motion,

S = ut + 1/2 × a × t²

150 = 0 + 0.5 × 9.8 ×  t²

t² = 150 / 4.9

t = 5.53 seconds

The horizontal displacement of the balloon = 50 × 5.53

                                                                      = 276.5 meters

Thus, Draymond Green and Klay Thompson wanted to make fun of Steph Curry. Kay could have thrown a balloon horizontally at 50 meters per second from a bridge that was 150 meters high, and it would have landed 276.5 meters away.

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The divers final speed before hitting the bottom is 14.0 m/s.

The time taken for the skydiver to fall from the given height affects the  final velocity  of the diver and it is calculated by using the following kinematic equation.

v² = u² + 2gh

where;

Substitute the given parameters and solve for the final velocity.

v² = 0 + 2gh

v = √2gh

v = √(2 x 9.8 x 10)

v = 14.0 m/s

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Answer:

hope this helps, you can ask any questions for clarification