Contrast generators and electric motors.

A tuna fish body is streamline to reduce friction. Which describes the type of friction the fish must overcome?

Which of the following is true about parallax? A) It is used to measure distances to stars. B) The parallax measures of distant stars are to tough to measure C) The nearest stars have the smallest parallax angles. D) Both A and B.

Calculate the average acceleration of a car that changes speed from 0 m/s to 15 m/s in 5 seconds

A boat would like to cross a river in the most direct route. Because of a current, the boat must aim upriver in order to directly cross the river. To the nearest degree, what is the angle the boat should head upstream?

If an object has a mass of 40 grams and a volume of 20 cm^3, what is its density in g/cm^3? A) 0.5 B) 2 C) 40 D) 800

What are the differences between deterministic forces and thermal agitation?

What causes the acceleration to increase or decrease?

When You lift a load, the resistance force is? A. magnetism b. gravity

What changes a ball velocity

A rock with mass m = 3.60 kg falls from rest in a viscous medium. The rock is acted on by a net constant downward force of F = 15.