The electrical signals that cause the heart to beat originate from the

At sea level, a box weighs 40 lbs. At the top of Mt. Everest, the same box will weigh: less than 40 lbs. more than 40 lbs. exactly 40 lbs.

What area of the country is the main benefactor of the electricity generated by the hoover dam?

A 26.0-kg block is initially at rest on a horizontal surface. A horizontal force of 72.0 N is required to set the block in motion, after which a horizontal force of 58.0 N is required to keep the block moving with constant speed.

When you walk with a cup of coffee (diameter5 cm) at just the right pace of about1 step per second, the coffee builds up its "sloshing" untileventually, after a few steps, it starts to spill over the top.

If the mass of an object is 44 kilograms and its velocity is 10 meters per second east, how much Kinetic Energy does it have?

You are caring for a person who was involved in an automobile collision. The woman is complaining of pain in her abdomen, nausea and extreme thirst. She also is breathing rapidly. Which of the following would you suspect?

A fountain of water and steam that erupts from the ground

A heavy rope, 50 ft long, weighs 0.5 lb/ft and hangs over the edge of a building 120 ft high. how much work is done (in ft-lb) in pulling half the rope to the top of the building?

Does adding a neutron to an atom's nucleus makes it an ion?

What is the difference between a fault-block and upwarped mountains?