1. The upward force exerted on an object falling through air is _

a. terminal velocity

c. air resistance

b. momentum

d. weightless

Which mineral is hard and has the same color and streak

For typical rubber-on-concrete friction, what is the shortest time in which a car could accelerate from 0 to 60 mph? suppose that μs=1.00 and μk=0.80

What do gravitational forces cause?

What are three things that travel in waves

A machine performs 90 J of work in lifting an object. It requires 120 J of work do lift it. How much heat is created by the machine?

When performing a battery load test, what should the load be set to?

If you push on a wall of a building what will happen

A conductor, with outer surface labelled a, contains a cavity, inner surface b. In this cavity there is a conducting sphere of radius r, and surface c. The sphere carries a charge of 1 C, while the conductor a charge of 2 C.

A spring (k = 790 N/m) has a length of 48 cm when zero net force is applied to it. What will its length be when 230 N of force is applied to stretch it? Question 3 options: 3.4 m 0.77 m 3.9 m 0.29 m

Inert gas used to make bright city lights True or False