a large raindrop--the type that lands with a definite splat--has a mass of 0.014 g and hits your roof at a speed of 8.1 m/s .

To find the spherical convex mirror radius, learn the focal length and magnitude.

What is focal length?

The focal length of a thin lens in air is measured from the lens's center to its primary foci, also known as focal points. The focal length of a converging lens, such as a convex lens, is positive and determines how far a collimated light beam must travel to focus on a single point.

What is magnitude?

Magnitude typically refers to size or distance. By comparing the size and motion speed of the object, we can relate magnitude to movement. The object's or quantity's size determines its magnitude.

R=0.123m

Focal length E= R/2

E= - 0.0615m.

Therefore, the focal length is 0.0615m.

Learn more about focal length from the given link.

https://brainly.com/question/28039799

#SPJ4

Nitrogen oxides play a critical role in photochemical smog. They give the smog its yellowish-brown hue. Indoor residential appliances like gas stoves and gas or wood heaters can be significant emitters of nitrogen oxides in poorly ventilated environments.

Therefore , on conclusion i.e. two gases with molecules consisting of nitrogen and oxygen atoms are nitric oxide (NO) and nitrogen dioxide (NO₂). These nitrogen oxides play a part in the development of smog and acid rain, adding to the issue of air pollution.

To know more about photochemical smog

https://brainly.com/question/15635778

#SPJ1

where T is the temperature change from 10°C to 32°C, q is the rate of heat transfer, m is the mass flow rate of water, c is the heat capacity of water, and m is the mass flow rate of water. The water flow rate in kg/s

The amount of fluid that passes through a pipe or container in one unit of time is referred to as the flow rate. It is often expressed in terms of volume per unit time, such as gallons per minute or cubic metres per second. The viscosity of the fluid, the pipe's diameter, the fluid's pressure, and the length of the pipe are some of the variables that might affect flow rate. In many applications, including water treatment, industrial operations, and energy generation, it is crucial to comprehend and manage flow rate. An improper flow rate can result in waste, inefficiencies, and even equipment

Learn more about flow rate here:

https://brainly.com/question/27880305

#SPJ4

Answer:

+3 in Atom, +9 in Nucleus

Explanation:

Charge of atom:

Neutrons are neutral in charge therefore ignore those for this portion,

there are 9 protons (+) and 6 electrons (-).

9 - 6 = +3 charge in atom

Charge of nucleus:

Neutrons are neutral as said before, there are 9 protons (+) and 6 neutrons (0).

9 + 0 = +9 charge in atom

The given statement "A large bulk quantity is defined as 3,000 kg (6,614 lbs.) for solids and 3,000 liters (792 gallons) for liquids and gases in a single package" is true.

What is large bulk quantity?

Learn more about the Hazardous bulk with the help of the given link:

https://brainly.com/question/14311317

#SPJ4

Answer:

30 maybe?

Explanation:

Answer:- 30 km/hr

Given :- Distance covered by Salesman 50 km

Time taken;- 2 hrs and 30 minutes

Speed of salesman: Distance/ time taken

50 / 2 1/2 = 20 km/hr

He has make it 5/6 less

2 1/2 —5 / 6 = 5 / 3 hrs

Speed : Distance / Time

50 km / 5/3 = 30

He has to travel at 30 km per hour.

Answer:

A, B, and E

Explanation:

C and D are wrong;

Line graphs do not show the dependent variable on the x-axis.

Line graphs do have both an x-axis and a y-axis.

Answer : H20

Explanation:

Answer:

Explanation:

Given parameters

initial velocity u = 4.9m/s

height of drop H = 100m

acceleration due to gravity g = -9.8m/s²(since the body is ascending i.e moving against gravity)

Required

time taken by the packet to reach the ground 't'

Using the equation of motion

S = ut+1/2gt²

0-100 = 4.9t+1/2(-9.8)t²

-100 = 4.9t-1/2(9.8)t²

-100 = 4.9t-4.9t²

4.9t-4.9t² +100 = 0

4.9t²-4.9t² -100 = 0

Multiplying through by 10

49t²-49t-1000 = 0

Using the general equation t = (-b±√b²-4ac)/2a

t = -(-49)±√(-49)²-4(49)(-1000)/2(49)

t = 49±√(2401+196000)/2(49)

t = 49±√(198401)/98

t = 49±√(198401)/98

t = 49±449.42/98

t = (49+449.42)/98

t = 494.42/98

t = 5.04secs

Hence, it took the packet 5.04secs to reach the ground

The final velocity is calculated using the formula v = u + at

v = u-gt

v = 4.9-(9.8)(5.04)

v = 4.9-49.392

v = -44.492m/s

This shows that the final velocity is 44.49m/s(moving downwards)

The average value for t- statistics is 0 if null hypothesis is true.

What is a t – statistics and null hypothesis ?

The t-test yields a t-value of 0 if the sample data precisely match the null hypothesis. The value of the t-value rises as the sample data diverge more and more from the null hypothesis.

To learn more about null hypothesis visit here:

https://brainly.com/question/25263462

#SPJ4

To use all the energy from consuming a small order of french fries, the person would need to climb the 11.0 m stairway approximately 17.0 times.

The energy content of the small order of french fries is given as 241.0 Cal. We can convert this value to joules since the unit of energy in the metric system is the joule (J). 1 calorie (Cal) is equal to 4.184 joules (J). To use all the energy from consuming a small order of french fries, the person would need to climb the 11.0 m stairway approximately 57 times.

Energy content of the small order of french fries:

241.0 Cal × 4.184 J/Cal = 1007.144 J

Work done to climb the stairway:

(55.0 kg) × (11.0 m) × (9.8 m/s²) = 59294 J

Number of climbs needed to use all the energy:

1007.144 J ÷ 59294 J ≈ 17.0

learn more about Energy here:

https://brainly.com/question/30933002

#SPJ4

Answer:

a. Acceleration, a = 1.88 m/s²

b. Time, t = 7.87 seconds.

Explanation:

Given the following data;

Initial velocity, U = 14.5m/s

Final velocity, V = 29.3m/s

Distance, S = 172m

a. To find the acceleration of the speedboat;

We would use the third equation of motion;

V² = U² + 2aS

Substituting into the formula

29.3² = 14.5² + 2a*172

858.49 = 210.25 + 344a

344a = 858.49 - 210.25

344a = 648.24

a = 648.24/344

Acceleration, a = 1.88 m/s²

b. To find the time;

We would use the first equation of motion;

V = U + at

29.3 = 14.5 + 1.88t

1.88t = 29.3 - 14.5

1.88t = 14.8

Time, t = 14.8/1.88

Time, t = 7.87 seconds.

The total energy of the body at evevry point is remained same due to the law of conservation of energy. Distance from A to B and final velocity of the ball just reach before C is 44.3 m/s.

d (distance) from A to B is = √2gh

In this case given are, g = 9.8 m/s² and h = 100m,

so here d = √(2⋅9.8⋅100) = 44.3m.

Final velocity ,v = √2gh

Here given are , v is the velocity, g is the acceleration due to gravity, and h is the height. In this case,

g = 9.8 m/s² ,h = 100m,

v = √(2⋅9.8⋅100)

= 44.3 m/s (final velocity)

Learn more about the energy here

https://brainly.com/question/32623120

#SPJ1

bicycle wheels

roller skates

doorknob

A wheel that has a rope wrapped around it

The energy required to move a 6400 kg truck traveling at 100 m/s is 32,000,000 joules (J).

To calculate the energy required to move a 6400 kg truck traveling at 100 m/s, we need to find its kinetic energy. The formula for kinetic energy is KE = 0.5 * m * v^2, where KE is the kinetic energy, m is the mass of the truck, and v is its velocity. The unit for energy is joules (J).

Explanation:
Step 1: Identify the mass (m) and velocity (v) of the truck.
m = 6400 kg
v = 100 m/s

Step 2: Plug the values into the kinetic energy formula.
KE = 0.5 * m * v^2
KE = 0.5 * 6400 kg * (100 m/s)^2

Step 3: Calculate the kinetic energy.
KE = 0.5 * 6400 kg * 10000 m^2/s^2
KE = 3200 kg * 10000 m^2/s^2
KE = 32,000,000 J

The energy required to move a 6400 kg truck traveling at 100 m/s is 32,000,000 joules (J).

To know more about energy, visit;

https://brainly.com/question/13881533

#SPJ11

The mass of Karla's cart by Newton's second law on applying force will be 12 kg.

A detailed explanation of how a force can alter a body's motion is given by Newton's second law. According to this, a body's momentum changes at a rate that is equal to the force acting on it over time in both magnitude and direction.

We know that according to Newton's second law force=mass×acceleration

Now the force needed to push Danielle's cart is 15N.

So, Danielle's car mass is-

In light of the fact that Karla's cart is twice as heavy as Danielle's, Karla's cart's mass can be calculated by multiplying 6 by 2.

So, the mass of Karla's cart is =2×6=12kg.

To know more about momentum visit:

https://brainly.com/question/24030570

#SPJ1

When the area of each plate is doubled while keeping the charge and separation constant, the electric field decreases, the potential difference remains the same, and the stored energy in the capacitor increases four times.

When the area of each plate of a capacitor is doubled while keeping the total charge on each plate and the separation between the plates constant, the following changes occur:

1. Electric Field: The electric field between the plates decreases. The electric field (E) between the plates of a capacitor is inversely proportional to the area (A) of the plates. As the area is doubled, the electric field is halved, assuming the other factors remain constant.

2. Potential Difference: The potential difference (V) across the plates remains the same. The potential difference across the plates of a capacitor depends on the charge (Q) and the capacitance (C), which is determined by the geometric and material properties of the capacitor. Since the total charge and separation between the plates are held constant, the potential difference remains unchanged.

3. Stored Energy: The stored energy in the capacitor increases four times. The energy stored in a capacitor (U) is directly proportional to the area of the plates (A). When the area is doubled, the stored energy is quadrupled (increases by a factor of four).

Therefore, when the area of each plate is doubled while keeping the charge and separation constant, the electric field decreases, the potential difference remains the same, and the stored energy in the capacitor increases four times.

Learn more about capacitors and their properties here:

brainly.com/question/30547869

#SPJ11

Answer:

atom

Explanation:

Good luck have a great day

We see what we call lunar phases because of the Moon orbits Earth and Earth orbits the Sun.

lunar phase can be defined as any of the different appearances of the Moon as seen from Earth as different amounts of the lunar disk are illuminated by the Sun.

Each month, the Moon goes through its four phases. The four lunar phases of the moon include the following;

Thus, we can conclude that we see what we call lunar phases because of the Moon orbits Earth and Earth orbits the Sun.

Learn more about lunar phases here: https://brainly.com/question/13538936

#SPJ1

We can compare the times taken by the turtle and the rabbit 320 s > 100 s This means that the rabbit will reach the arrival line much before the turtle does. Therefore, the rabbit will beat the turtle in this race.

We can start by finding the time it takes for the turtle to cover the remaining distance to the arrival line.

Distance to travel by turtle = 100 m - 20 m = 80 m

Speed of turtle = 0.25 m/s

Time taken by turtle to cover the remaining distance = distance/speed = 80 m / 0.25 m/s = 320 s

Therefore, the turtle will take 320 seconds to reach the arrival line from its starting point.

Next, we can find the time taken by the rabbit to cover the entire 100 m distance.

Speed of rabbit = 1 m/s

Time taken by rabbit to cover 100 m = distance/speed = 100 m / 1 m/s = 100 s

Therefore, the rabbit will take 100 seconds to cover the entire 100 m distance.

Now, we can compare the times taken by the turtle and the rabbit.

320 s > 100 s

This means that the rabbit will reach the arrival line much before the turtle does. Therefore, the rabbit will beat the turtle in this race.

What is arrival line?

The "arrival line" is a term used in the context of a competition where participants have to cover a certain distance. It is the point or the line beyond which the participants are supposed to cross or reach to complete the race or the competition.

To know more about arrival line, visit:

https://brainly.com/question/13212416

#SPJ1

Explanation:

St. John’s

_________

o0o0o0o0o0

Answer

True; Destructive occurs for two interfering waves that are 180 degrees out of phase

Given parameters:

Initial velocity of eraser  = 5.0m/s

Time  = 7.0s

Unknown:

Final velocity = ?

Solution:

Since we have been given the initial velocity and duration of the throw, we can apply the appropriate motion equation to solve this problem.

       V  = U - 2gt

where V is the final velocity

            U is the initial velocity

             g is the acceleration due to gravity = 9.8m/s²

            t is the time taken

       V  = U - gt

       V = 5 - (9.8)(7)

       V = -63.6 or -64m/s

The velocity is -64m/s

As the eraser is thrown upward, its velocity after 7.0 seconds is approximately -64m/s.

Given the data in the question;

Initial velocity of the eraser; \(u = 5.0m/s\)

Final velocity; \(v = \ ?\)

Time; \(t = 7.0s\)

To determine the eraser's velocity after 7.0 seconds, we us the First Equation of Motion:

\(v = u + at\)

Where v is the final velocity, u is the initial velocity, t is the time and a is the acceleration. Since the eraser was thrown upward, acceleration due to gravity becomes ( negative acceleration ) \(g = -9.8m/s^2\)

Hence, the equation becomes

\(v = u - gt\)

We substitute in our values and solve for "v"

\(v = 5.0m/s - ( 9.8m/s^2 \ *\ 7.0s )\\\\v = 5.0m/s - 68.6m/s\\\\v = -63.6m/s\\\\v = -64m/s\)

Therefore, as the eraser is thrown upward, its velocity after 7.0 seconds is approximately -64m/s.

Learn more; https://brainly.com/question/9240794

To identify which of the following forces act on the bicycle + rider system and sort them accordingly,

Acts on particle:
1. Gravity - It acts on both the rider and the bicycle, pulling them downward towards the Earth.
2. Normal force - This acts perpendicular to the ground, supporting the bicycle and rider.
3. Static friction - It acts between the tires and the ground, allowing the bicycle to grip the road and not slip.
4. Air resistance - This force opposes the motion of the bicycle and rider as they move through the air.
5. Rolling friction - It occurs between the tires and the ground, opposing the motion of the bicycle.

Does not act on particle:
1. Kinetic friction - This force acts between two surfaces in relative motion, but since the bicycle tires do not slide on the ground, kinetic friction does not act on this system.

To know more about Static friction here :

https://brainly.com/question/28151605

#SPJ11

Hi! I believe your answer is 6.3 seconds because it takes 0.45 seconds for an object to fall 1 meter, so just multiply 0.45 by 14 and you'll get 6.3 seconds. I hope this helps you! Good luck and have a great day/night. ❤️✨

Luke putting his motorcycle up for sale via a post on an online auction site is an invitation to negotiate, not an offer.

In the context of contract law, an offer is a specific proposal made by one party to another, indicating a willingness to enter into a contract on certain terms. However, when Luke posts his motorcycle for sale on an online auction site, he is not making a specific proposal to sell his motorcycle to a particular buyer. Instead, he is inviting potential buyers to make offers or negotiate the terms of the sale. The act of putting the motorcycle up for sale is considered an invitation to negotiate, as it allows interested parties to express their interest and make offers based on their own terms and conditions. The actual offer and acceptance of the sale would occur when a specific buyer makes a bid or offer that Luke accepts, forming a contract between them. Until that point, the posting serves as an invitation for potential buyers to engage in negotiations rather than a binding offer.

Know more about contract law here:

https://brainly.com/question/2963071

#SPJ11

Answer:

the answer to this would be D.

Answer: Its D but it might swap to another letter so keep your eye out bud pass this test good luck

Explanation:

The impulse that Earth exerts on a 210 g apple that is falling from a tree during the first 0.50 seconds can be calculated using the formula for impulse.

Impulse is defined as the change in momentum of an object, and is given by the equation:

J = Δp

where,

J is the impulse.

Δp is the change in momentum.

To calculate the impulse that Earth exerts on the apple, we need to know the initial momentum and the final momentum of the apple during the first 0.50 seconds.

Since the apple is falling freely, its initial momentum is zero (because it is at rest), and its final momentum can be calculated using the formula:

p = mv

where,

p is the momentum.

m is the mass.

v is the velocity.

Since the apple is falling freely, we can use the equation for free fall to find the velocity:

v = gt

where g is the acceleration due to gravity, and t is the time.

At the end of 0.50 seconds, the velocity of the apple can be calculated as: v = gt = (9.8 m/s²)(0.50 s) = 4.9 m/s.

Therefore, the final momentum of the apple can be calculated as:

p = mv = (0.210 kg)(4.9 m/s) = 1.029 kg m/s.

The change in momentum (Δp) during the first 0.50 seconds is simply the final momentum, since the initial momentum is zero.

Therefore, the impulse that Earth exerts on the apple during the first 0.50 seconds is given by:J = Δp = 1.029 kg m/s

To learn more about impulse :

https://brainly.com/question/26256344

#SPJ11

Answer:

IV: Sail shape

DV: Travel distance

Explanation:

The independent variable is the variable we are changing to see its effects. If we are seeing how the shape of a sail affects travelling distance, the independent variable will be the shape of the sail. This could be achieved by using different dimensions or different geometric shapes.

The dependent variable is the one we are measuring in response to the independent variable. In this case it will be the distance that the boat travels. This could be measured using a ruler or distance meter.

Hope this helped!