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2 years ago

When a moving object collides with an object that isn’t moving, what happens to the kinetic energy of each object?

Mathematics

1 answer:

djyliett [7]2 years ago

6 0

The kinetic energy transfers from the moving ball to the non-moving ball.

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Which is the correct simplification of 5.4 x 10^12/ 1.2 x 10^3

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4.5× $10^{9}$

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2 years ago

Which ordered pair is a solution of this

Natalija [7]

Answer:

(-1, -2)

Step-by-step explanation:

when x = -1 and y = -2,

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2 years ago

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A force of 12 lb is required to hold a spring stretched 8 in. beyond its natural length. How much work W is done in stretching i

sattari [20]

Answer:

Work done in stretching the spring = 7.56 lb-ft.

Step-by-step explanation:

Normal length of the spring = 8 in or $\frac{8}{12}$ ft

= $\frac{2}{3}$ ft

If the spring has been stretched to 11 inch then the stretched length of the spring is = 11 in

= $\frac{11}{12}$ ft

Force applied to stretch the spring = 12 lb

By Hook's law,

F = kx [where k is the spring constant and x = length by which the spring is stretched]

12 = k( $\frac{2}{3}$ )

k = 18

Work done (W) to stretch the spring by $\frac{11}{12}$ ft will be

W = $\int\limits^\frac{11}{12} _0 {kx} \, dx$

= $\int\limits^\frac{11}{12} _0 {(18x)} \, dx$

= $18[\frac{x^{2}}{2}]^{\frac{11}{12}}_0$

= 9( $\frac{11}{12}$ )²

= 7.56 lb-ft

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2 years ago

A rectangle is a _____. a. quadrilateral b. square c. parallelogram d. rhombus

Pavlova-9 [17]

Both A and C is true. However, even though a rectangle can be a parallelogram, a parallelogram is a quadrilateral, so the answer is A.
I hope this helps!

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3 years ago

Find the slope of the line.

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2 years ago

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