A thin copper rod that is 1.0 m long and has a mass of 0.050 kg is in a magnetic field of 0.10 t. What minimum current in the rod is needed in order for the magnetic force to cancel the weight of the rod?

A stone is dropped into a deep well and hits the water after 3.41 seconds. How deep is The well?

Consider a brick that is totally immersed in water, with the long edge of the brick vertical. The pressure on the brick is A) greatest on the sides of the brick B) greatest on the top of the brick C) greatest on the bottom of the brick D) greatest

Which of the following characterizes Erikson's identity versus role formation stage? Reconciling relationships with family and friends Struggling to develop new skills and obtain new knowledge Figuring out how to determine who should be trusted

What do positive ions tend to do

In an experiment to create a pendulum, each member of the group measured the length of the string to be a slightly different value. How do we describe these small differences when reporting the length?

A force is applied to a 13.0 kg wagon to pull it down the sidewalk at a constant speed. The coefficient of kinetic friction is 0.65. Considering the resulting frictional force, what is the magnitude of the applied force?

Gravity is the force by which a planet or other body draws objects toward its center. The force of gravity keeps all of the planers in orbit around the Sun.

What wave-like property of light causes it to bend when encountering an opening? A. Reflection B. all the above c. Refraction d. none of the above e. diffraction

Which of the following statements describe sliding friction? Select all that apply. 1.) a force that causes an object to increase speed 2.) a force in which one of the objects involved must be a liquid or a gas 3.

What do a broken rode and a volcano eruption have in common