Please Help with Acceleration graphs

Answer:

Smaller forces are easier on your legs and you prefer to land on soft grass. Momentum/impulse explanation: Whether you land on concrete or soft grass, your change in momentum will be identical. A hard surface that brings you to a stop in 0.01 s requires a much larger force of 15,000 N.

Explanation:

Answer:

Answer:

Explanation:

F=ma

1.  Describe a situation in which the force required to change the velocity of an object changes based on the mass of the object.

Place both a volleyball and a bowling ball on the lower surface of an inclined plane (e.g., on an asphalt road going uphill).  Roll each one up the hill and measure the difference in effort (force) each requires to start moving.

2. Describe a simple experiment you could perform that would generate data to provide evidence that the change in an object’s motion depends on either the forces on the object or the mass of the object.

Use a coiled spring to propel two objects above (volleyball and bowling ball) and observe both the distance and the velocity after leavging the spring.

Answer:

They can help us in our daily lives

Explanation:

I knew that they can also be a help to others specially in other ways such as to help us to facilitate our work in home

Answer:

it is a meal that jas tomato,ketchup meat or chicken, mayoneze and cucumbers.

Answer:

I guess it is the reason

Explanation:

A dam is thicker at the bottom than at the top because the forces exerted are strongest close to the ground. Water pressure increases proportionally with depth, so the lower portion of the dam has greater water pressure exerted upon it. The increasing thickness of the lower dam also helps it support its own weight.

This is because of Pressure.

Pressure is directly proportional to depth and the deeper the length the high the pressure. Thus at the bottom, water pressure is very high and the walls must be made thicker to accommodate that pressure.

Answer:

225√3 N

Explanation:

225√3 N

Answer:

B. Field Force

Explanation:

Answer:

The Answer is (B) Your welcome!

Answer:

A rotating fan completes 1200 revolutions every minute. Consider the tip of a blade, at a radius of 0.15 m.

Explanation:

The tangential velocity at the point, 0.16 m from the axis is 13.44 m/s.

We have the following information;

Angular speed of the blade = 800rev/min

Radius of the point under consideration = 0.16m

We have to convert the angular velocity to units of rad/s

Given that;

1 rev/min = 0.105 rad/s

800rev/min = 800rev/min × 0.105 rad/s/1 rev/min

= 84 rad/s

Now;

v = rω

v = Tangential velocity

r = radius

ω = angular velocity

v =  0.16m × 84 rad/s

v = 13.44 m/s

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Answer:

d) All of the above

Answer:

d

Explanation:

cause mass is in everything

Answer:

1.5891x10^-24

hope this helped :)

Answer:

periods or series

Explanation:

The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. Elements in the periodic table are organized according to their properties.

brailiest pls

Answer:

ANION is the answer

Friction due to fluid is also called DRAG

Answer:

Hey mate.....

Explanation:

This is ur answer....

Friction due to fluid is also called drag.

Hope it helps

Brainliest pls!

Follow me! :)

Answer:

0.1962N.

Explanation:

Weight is a force, so we use newtons second law which states F=ma. So the weight of a watermelon on earth is 2kg x 9.81m/s², which is 19.62N (newtons). On the moon it weighs 2 x 1.63 which is 3.26N.

The weight of the pen is 0.02 x 9.81, which is 0.1962N. If the pen is not to fall the frictional force needs to be equal to this force,

so the answer is 0.1962N.

(Hope this helps can I pls have brainlist (crown)☺️)

Áp dụng công thức tính độ dài ạ

Golf cart is moving 8 metre in 1 second

so, in 10 seconds it moves 8 × 10 = 80 m

a) velocity = 80/10 = 8 m/s

b) acceleration = v - u / t

= 8 - 0 / 10

= 0.8 m/s²

c) the displacement of the graph is increasing

I hope this answer is correct and helpful to you

Answer:

You need to divide 200 by 23 seconds in order to get your answer.

Answer:

I=P/U=6/12=0.5(A)

Explanation: P=UI ( CÔNG SUẤT = HIỆU ĐIỆN THẾ NHÂN VỚI C Đ D Đ)

Using the information depicted on the distance - time graph, the slope of the graph is could be used to infer the velocity of each cyclist. Hence, cyclist A and B do not have the same velocity at 3 seconds.

The steepness of slope on the distance - time graph gives the velocity of the cyclist. At time, t = 0 ; the cyclist A has a greater slope than cyclist B. Hence, the velocity of the cyclists is different.

Therefore, the cyclists do not have the same velocity at time, t = 3 seconds.

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Answer:

Efficiency: 0.4 (40%)

Explanation:

The efficiency of a simple machine is given by the ratio

n = w¹/w²

where

w² is the input work of the machine

w¹ is the output work of the machine

For the machine in this problem, we have:

w¹ = 800j is the output work

w² = 2000j is the input work

Therefore, the efficiency of the machine is

n = 800/2000 = 0.4

Which can be also written as percentage:

n = 0.4 × 100 = 40%

hope it helps you

The object that is best used to study the transformation between kinetic and potential energy is the clock because it has a pendulum.

A pendulum can be used to study the conversion of kinetic energy to potential energy. As the pendulum swings from side to side energy is converted from potential energy to kinetic energy and back to potential energy.

The potential energy is minimum and the kinetic energy is maximum at the middle of the pendulum. At both ends of the pendulum, the potential energy of the system is maximum.

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Answer:

because the knife is sharp

Answer:

Pressure is inversely proportional to the area of the surface. While a blunt knife has more area coming in contact than a sharp knife and the pressure exerted by the blunt knife will be less as compared to that of a sharp knife. Therefore it is easier to cut with a sharp knife.

Explanation:

Hope this helps! mark as brainliest please...

Answer:

1 is A

2 is A

3 is B

4 is B

Explanation:

number three is a dead giveaway

Answer:

17.64 Newtons

Explanation:

In order to find the weight of an object we take the mass in kilograms and multiply it by the gravitational constant (9.8), which is 1.8 * 9.8 = 17.74 Newtons.

Weight is force on the body of given mass 1.8 Kg. Weight is 17.64 N.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Weight of body is force due to gravity,

F = mg

F = 1.8*9.8

F = 17.64 N

Weight of the body is given as 17.64 N.

Weight is force on the body of given mass 1.8 Kg. Weight is 17.64 N.

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Answer:

:parallel

Explanation:

Potential difference is the difference in potential energy per charge between two different points in an electric circuit. Here is a simpler explanation:

Answer:

Force and Motion - Word ACROBAT w otion" Applied Force O Newtons DD -500 500 Net Force Motion Friction Acceleration I

2. Select the checkboxes: Forces, Values, Masses and Speed Force Values Masses Speed 3. Push the skateboard and the box with a force of 500N. Observe and describ behavior of the velocity once the skateboard is released Explain the reason of such behavior Part III. Friction 1. Click on "Friction" 2. Select the checkboxes: Forces, Sum of Forces, Values, Masses and Speed. Kee the knob that regulates the friction at the center of the scale. Forces Sum of Forces Values Masses

3. Start to push the box, increasing the force applied on the box slowly. There is a force that is opposite to the force you are applying. What is the name of the force opposing to the motion? 4. Once the box start moving, the magnitude of the resultant force increase instantaneously. How do you explain that? 5. Push the box and find the force needed to make the box to start moving. Add more mass (box, kid, man,refrigerator, basket as needed) and repeat the procedure such that you complete the table below. Hint: Weight = mass x gravity Magnitude of Normal Force = Magnitude of the Weight Mass (kg) Weight (N) Normal Force (N) Force of Static Friction (N) 50 90 130 150 180 x 0 N

Explanation:

The forces act on skateboard when we push it are , external force of 500N and friction force because of the surface.

The stationary object will remain stationary or the subject in the motion will keep its motion until or unless the external force is not applied .

So, by the Newton's first law of motion we can understand this concept.

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Answer:

C. She is not releasing the endorphins that she used to, and that impacts her sleep.

Explanation:

The best explanation for why Therese is having trouble sleeping is that she is not releasing the endorphins that she used to, and that impacts her sleep.

Hence, the correct option is C.

Endorphins are hormones that are released during exercise. They have mood-boosting and pain-relieving effects. When Therese stops exercising, she is no longer releasing as many endorphins, which can lead to moodiness and difficulty sleeping.

Option A is incorrect because exercise does not directly move oxygen through the blood. Instead, it increases the heart rate and breathing rate, which in turn increases the amount of oxygen that is delivered to the tissues.

Option B is incorrect because there is no evidence to suggest that Therese requires more exercise than most people to relieve stress. In fact, most people find that regular exercise can help to reduce stress levels.

Option D is incorrect because it is unlikely that Therese is not maintaining the healthy habits that she did when she was practicing. Lacrosse is a physically demanding sport, so it is likely that Therese is still eating healthy and getting enough sleep.

Therefore, the best explanation for why Therese is having trouble sleeping is that she is not releasing the endorphins that she used to, and that impacts her sleep.

Hence, the correct option is C.

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Answer:

B. learning happens through experience and practice.