A good model of the cell membrane would be

A. a chain link fence.

B. a film of food wrap.

C. a wall of stones and mortar.

D. a river with objects floating in it.

What is the formula of force?

A race car starts from rest on a circular track. The car increases its speed at a constant rate at as it goes 4.25 times around the track.

The addition of heat energy to a system always causes the temperature of that system to increase. true or false

Round the value 23.731 g to three significant figures. Determine the number of significant figures in the measurement 0.007890 s. Express your answer numerically as an integer.

Determine the kinetic energy of a 625-kg roller coaster car that is moving with a speed of 18.3 m/s

What's the difference between the offspring of an asexual organism and a sexual organism

The contamination that results from the spread of bacteria from meat to vegetables is called

A rock has a mass of 5 kg on the moon. What is the mass of the rock on the earth

A battery applies 45 volts to a circuit, while an ammeter reads 10 ma. later, the ammeter reading drops to 7 ma. assuming the resistance has not changed, the voltage must have

A 150-kg object takes 1.5 minutes to travel a 2,500 - meter straight path. It begins the trip traveling 120 m/s and decelerates to a velocity of 20 m/s. What is the acceleration?