As an object increases in altitude, its mass:

b. decreases

c. remains the same

Which force is responsible for allowing carbon-14 to become stable? * Gravitational None of the above Electromagnetic Strong Nuclear Weak Nuclear

What happens to the sound of a train whistle as a train approaches and passes you? why?

To do work, this truck uses energy stored in chemical fuel and an electrical battery. How much total energy does this truck put out?

If the car has a mass of 1000 kg what is its momentum

If an object is being acted on by two forces a push and a pull of 6N what is the net force of the object

A provides resistance in an electric circuit. a. wire b. light bulb c. switch. d. battry

Why is it good for scientist to be skeptical

Which of the following describes a scientific law? A. based of scientific evidence B. explains how and why nature does what it does C. not based of scientific evidence

Before leaving her home, Myesha makes sure that every electrical appliance is unplugged and checks that every window and door is securely locked. She checks everything seventeen times according to a strict ritual that she has worked out.

a minibus drives 238 miles with a constant speed of 84 mph and another 80 miles with a constant speed of 60 mph. how much time in total does it take to travel these distance?