Answer:
cm
Explanation:
= distance of the object = ?
= focal length of the convex mirror = - 20 cm
= distance of the image = - 10 cm
Using the lens equation


cm
Skates. An object in motion stays in motion unless an equal amount of force is applied back. She put out more force than what she was giving so it pushed her back
Answer:
D
Explanation:
F = G m1 m2 / r^2 now double r
F = G m1m1/ (2r)^2
F = 1/4 G m1m2/r^2 <===== this is 1/4 of the original
Answer:
Distance per unit time
Explanation:
Speed is the rate at which someone or something is able to move or operate.
The answer is ...
28 km per hour