Question

A car has a kinetic energy of 1.9 * 103 joules. If the velocity of the car is decreased by half, what is its kinetic energy?

Answer 1

it wil drop by four times

Answer 2

thank you

Answer 3

Welcome

Answer 4

can u help me on some of these questions?:)

Answer 5

Lol post i will

Answer 6

kay ill post on here:)

Answer 7

A ball having a mass of 500 grams is dropped from a height of
9.00 meters. What is its kinetic energy when it hits the ground?

Answer 8

500*9*gravitational acceleration

Answer 9

A. 4.4X10^3J
B 441 J
C. 44.1 J
D. 4.41 J

Answer 10

44.1 is answer

Answer 11

mkay lets see

Answer 12

its right ok next questioon lol

Answer 13

lol

Answer 14

An object having a mass of 2.0 kilograms falls from a height of
15 meters. What is its kinetic energy when it hits the ground?

Answer 15

lol

Answer 16

30*9.81

Answer 17

i got 2.9

Answer 18

A . 30 J
B. 2.2 X 10^2 J
C. 2.9 X10^2 J
D. 3.3 X 10^2 J

Answer 19

I THINK ITS C