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jarptica [38.1K]
4 years ago
8

What is kinetic energy

Physics
1 answer:
Elena L [17]4 years ago
7 0

Answer:

energy which a body possesses by virtue of being in motion.

Explanation:

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A girl is riding her bicycle. She rides 4 miles in 2.5 hours. What was her average speed?
xz_007 [3.2K]

Explanation:

4/2.5 = 1.6 miles/hour

4 0
3 years ago
A jetliner flies east 2000 miles from San Francisco to Chicago. It has an average air speed of 600 mph relative to the air. What
mariarad [96]

Answer:

750 mph, east

Explanation:

The jetliner is going from San Francisco to Chicago... so it's moving from West to East, at 600 mph, relative to the air.

The wind is also moving from West to East, at 150 mph.

Since both are going in the same direction, we combine the speeds by adding them to each other.  If they were in opposite direction, we would subtract them.

So, 600 mph for the plane + 150 mph for the wind = 750 mph, going EAST.

7 0
3 years ago
A 23kg block at rest on a flat surface experiences 200 N of friction. What is the coefficient of friction for the surface
Brrunno [24]

Ff=μN=μmg=>μ=Ff/mg=200/230=0.86

4 0
3 years ago
One property that electromagnetic waves differ from other types of waves is that they can
almond37 [142]
B.) travel in a vacuum
6 0
3 years ago
A block with a mass of 1kg moving at a velocity of 3m/s collides and sticks to a block of mass of 4kg initially at rest. What is
Vsevolod [243]

Answer:using Newton third law

Let initial velocity of block be u1=3m/s

Mass of moving block m1 =1kg

Final velocity of block =V

Mass of stationary block m2= 4kg

Since they stick together, their final velocity will be the same.

m1u1 + m2u2=(m1+m2)v

(1*3)+(0*4)=(1+4)v

3=5v

Divide both sides by 5

V=0.6

Final velocity is 0.6m/s

Explanation:

8 0
3 years ago
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