Suppose a scientist made this model.what info did the scientist need to know in order to make the model

Answers

Answer 1

Answer:
Suppose I wanted to answer this question about the model.
What info about the model would I need to know in order to
make any intelligent guess about the model ?

Hint:
It would really help if I could SEE the model, or at least a photo of it.

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according to newtons second law of motion, when an object is acted on by an unbalanced force, how will that object respond?

Answers

Explanation:

Newton's second law of motion states that when a certain force is acted on an object then it is equal to the mass m of that object multiplied by the acceleration a of the object.

Mathematically, the relation is as follows.

F = m × a

Thus, we can conclude that when an object is acted on by an unbalanced force then the object will start to accelerate.

When an object is acted on by an unbalanced force, then that object will accelerate.

If a rock is sitting in the dirt, the normal force from the ground and BLANK are acting on it plz help

Answers

The only other force acting on the rock would be gravity.

Gravity and ................? matter

explain why a high speed collision between two cars would cause more damage than a low speed collision between the same two cars?

Answers

Significant transfer of kinetic energy and momentum in high-speed collision causes more damage than low-speed collision.

From the laws of momentum and kinetic energy, a collision between two cars at a high speed would result in more damage than a collision between the same two cars at a moderate speed.

Momentum: An object's momentum is calculated by multiplying its mass by its velocity. The momentum of both cars is a crucial element in a collision. When two cars meet quickly, they have more momentum, which increases the amount of motion and force that is applied to the impact. The two cars' combined momentum increases the force of the collision.

Kinetic Energy: The energy of motion that an object possesses as a result of its mass and velocity. An object's kinetic energy is inversely related to its square of velocity. In comparison to a low-speed accident between the same two cars, the kinetic energy involved in a high-speed collision is substantially more.

A significant quantity of kinetic energy and momentum are transferred to the point of impact when two cars crash at high speed.

In contrast, kinetic energy and momentum are less engaged in low-speed collisions, which leads to less force being applied to the cars and their occupants.

Hence, due to significant transfer of kinetic energy and momentum in high-speed collision causes more damage than low-speed collision.

To learn more about Kinetic energy, here:

brainly.com/question/999862

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I've would cause more damage, because there is nore momentum and input force equals output force and the momentum is transferred between the two cars more so than if they had a lower velocity

HELP ASAP What does a pH of 7 indicate about a substance?

A. It is basic
B. It is reactive
C. It is acidic.
D. It is neutral.

Answers

Answer:

D) it is neutral

Answer:

neutral

Explanation:

A 2-kg bowling ball sits on top of a building that is 40 meters tall. Circle one: KE / GPE / both Show your work for finding the values of each type of energy the object has:2. A 2-kg bowling ball rolls at a speed of 5 m/s on the roof of the building that is 40 tall. Circle one: KE / GPE / both Show your work for finding the values of each type of energy the object has:

3. A 2-kg bowling ball rolls at a speed of 10 m/s on the ground. Circle one: KE / GPE / both Show your work for finding the values of each type of energy the object has:

1. A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed?

2. A 200-kg boulder has 39,200 joules of gravitational potential energy. What height is it at?

3. A 1-kg model airplane has 12.5 joules of kinetic energy and 98 joules of gravitational potential energy. What is its speed? What is its height?

Answers

1. A2-kg bowling ball sits on top of a building that is 40 meters tall.Circle one: KE / GPE / both Show your work for finding the values ofeach type of energy the object has:

KE = 0 (because velocity is 0)

PE = mgh = 2kg*9.8m/s^2*40m= 784 joule

2. A 2-kg bowling ball rolls at a speed of 5 m/s on the roof of thebuilding that is 40 tall. Circle one: KE / GPE / both Show your work forfinding the values of each type of energy the object has:

Both
KE = [1/2]m*v^2 = [1/2](2kg)(5m/s)^2 = 25 joul
PE = mgh = 40 joule

3. A 2-kg bowling ball rolls at a speed of 10 m/s on the ground. Circleone: KE / GPE / both Show your work for finding the values of each typeof energy the object has:

KE = [1/2]m(v^2) = [1/2]2kg*(10m/s)^2 = 100 joule

GPE = mgh = 0

1. A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed?

KE = [1/2]m(v^2) => v = √[2KE/m] = √[2*50,000joules/1000kg] = 10m/s

2. A 200-kg boulder has 39,200 joules of gravitational potential energy. What height is it at?

GPE = mgh => h = GPE / (mg) = 39,200 joules / (200kg * 9.8m/s^2) = 20m

3. A 1-kg model airplane has 12.5 joules of kinetic energy and 98 joulesof gravitational potential energy. What is its speed? What is itsheight?

KE = [1/2]m(v^2) => v = √ [ 2KE/m] = √[2*12.5 j / 1kg] = 7.9 m/s

GPE = mgh => h = GPE/(mg) = 98/(1kg*9.8m/s^2) = 10 m

At sea level, water boils at 100 degrees celcius and methane boiled at -161 degrees celcius. Which of these substances has a stronger force of attraction between its particles? Explain your answer

Answers

Water has stronger force of attraction between its particles because methane is gas and its particles are further from itself.

I hope I helped

Answer:

Explanation:

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What other property of the object increases as well?