You! i would like to know how to answer these and understand them.. you so much. i've been trying to figure them out, and i feel like i got the answer, but my answer didn't match with any of the answers so now i'm really

a penny is thrown from a 1000.0 m building with an initial velocity of 2.00 m/s down.
what is the penny’s velocity after 3.00 s?

a. −31.4 m/s
b. −3.10 m/s
c. −90.3 m/s
d. −9.00 m/s

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a penny is thrown from a 1000.0 m building with an initial velocity of 2.00 m/s down.
how far will the penny fall in 10.0 s?

a. −69 m
b. −118 m
c. −511 m
d. −1000 m

answer:   you might love summer weather, but you don’t want it to feel like the sun is inside your car. but a hot car that just won’t seem to cool down might be a bigger of a problem than you think. your car relies on being at the right temperature.

explanation:

true is the correct answer

hope i

jupiter is the largest planet in our solar system, having a mass and radius that are respectively, 318 and 11.2 times that of earth. suppose that an object falls from rest near the surface of each planet and that the acceleration due to gravity remains constant during the fall. each object falls the same distance before striking the ground. determine the ratio of the time of fall on jupiter to that on earth.

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it