Albert needs to determine the force of gravity on a 250 g ball. the force of gravity on a 1000 g ball is about 10 newtons.
albert measures the force of gravity on the 250 g ball, and finds it to be 4 n. he does not think that this measurement is correct. what should be the force of gravity on the ball?

a.
the force of gravity on the ball should be 0 n.
b.
albert's measurements are correct.
c.
the force of gravity on the ball should be about 10 n.
d.
the force of gravity on the ball should be about 2.5 n.

Which would be an adaptation in a rainforest, but not in a tundra? a. ability to store water for a long time b. fur that blends in with snow c. strong claws for killing prey d. a beak that can dig into thick trees

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly