How does Newton's law work? Give an example of the formula in a word problem. please help

Answers

Answer 1

Answer: 1 An object in motion stays in motion. "Rolling a ball down an inclined plane."
2 An object's acceleration is related to it's mass. F=ma "A heavy ball rolls down the plane faster then the lighter ball"
3 For every action there is an equal and opposite reaction. "Throwing a ball, the harder you throw the faster it will go."

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A newspaper turns yellow in sunlight. Is this a physical or chemical change?

Answers

It is a chemical change. I always think of a chemical/physical change as if you could reverse it back as it started off, for example if you stepped on a can you can reverse the can back probably not exactly like it was before but you can still reverse it so this would be a physical change, and if you baked a pizza you could not reverse the dough and everything else back.

How does a real image differ from a virtual image?

Answers

Real image is formed when the rays of light after reflection or refraction actually meet at some point whereas a virtual image is formed when the rays of light after reflection or refraction appear to meet at a point

Answer:

one contains datta that can take up hard drive or disc space weras a picture takes up space on walls or photo albums

Explanation:

Which of the following lists the Earth’s layers in order from hottest to coldest in temperature?A.outer core, mantle, inner core, crust
B.crust, mantle, outer core, inner core
C.inner core, outer core, mantle, crust
D.mantle, crust, inner core, outer core

Answers

The answer is C, Inner core, outer core, mantle, crust.

Well,

Logically, the deeper we go, the hotter it will get.

It turns out that the innermost part of the lithosphere is the hottest, while the outermost part of the lithosphere is the hottest (suprise!).

Option C is correct.

The leg's force forward on the foot= 500NThe foot's force forward on the ball= 500N
The ball's force back on the foot= 500N
What is the net force on the ball?
What is the net force on the foot?

Answers

There's so much going on here, in a short period of time.

Before the kick, as the foot swings toward the ball . . .

-- The net force on the ball is zero. That's why it just lays there and
does not accelerate in any direction.

-- The net force on the foot is 500N, originating in the leg, causing it to
accelerate toward the ball.

During the kick ... the 0.1 second or so that the foot is in contact with the ball ...

-- The net force on the ball is 500N. That's what makes it accelerate from
just laying there to taking off on a high arc.

-- The net force on the foot is zero ... 500N from the leg, pointing forward,
and 500N as the reaction force from the ball, pointing backward.

That's how the leg's speed remains constant ... creating a dent in the ball
until the ball accelerates to match the speed of the foot, and then drawing
out of the dent, as the ball accelerates to exceed the speed of the foot and
draw away from it.

4 PointsA car of mass 1300 kg drives in a circle of radius 85 m. If the car has a speed
of 20 m/s, what is the centripetal force acting on the car?
O
A. 6118 N
O
B. 1300 N
O C. 7982 N
O D. 305.9 N
SUBMIT

Answers

Answer:

6118N

Explanation:

Which quantity is a vector quantity?O A.
displacement
OB. distance
OC. mass
OD. temperature
O E.
volume

Answers

Answer: The answer to the problem is I feel temperature as

Explanation:This is because mesurement of a medium's temperature itself is a SCALAR but when we calculate the temperature increase or decrease in a medium it is known as a VECTOR as it has refers to both the direction of the medium's movement as well as the measurement of the scalar quantity.

Hopefully you got it!!!!

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