What is a solenoid?

a current-carrying wire with many coils

a current-carrying wire that is straight

a tool used to measure magnetism

a tool used to measure current

How much force is needed to accelerate a 5-kg object at 4 m/s2

An ant carries a morsel of food 4.26 meters along a straight path to his nest. He then turns around and follows the path back to the source of the food. What is his displacement when he arrives back at the food source?

A wire 25.2 cm long is at right angles to a 0.219 T uniform magnetic field. The current through the wire is 6.04 A. What is the magnitude of the force on the wire? Answer in units of N.

If you throw a baseball while riding a bike, the ball's speed relative to the ground is the sum of the bicycle's speed and the speed at which you threw the ball. True or false?

What formula allows you to calculate force?

The passing of heat through a material while the material itself stays in place. A. radiation B. conduction C. convection

What would result from under-coverage? A. a lack of accurate result B. an incorrect independent variable C. an experiment D. accurate result

What can be said about the force of gravity acting on an object that is floating stationary underwater and not moving up or down? A. The buoyant force equals the force of gravity, so there is no net force. B.

A frog in a hemispherical pod finds that he just floatswithout sinking in a fluid of density 1.25 g/cm3. If the pod has a radius of3.00 cm and negligible mass, what isthe mass of the frog?

What is the reasonable estimate for Lim g (x)