How much work is done when a very large force is applied to an object but does not move the object?

a. none

b. a lot

c. a little

d. The exact amount of work and the weight of the object must be known to figure this out.

Which of the following accurately describes the effects of temperature changes on solids? A. If the temperature of a solid is decreased, the solid expands and its volume decreases. B.

As an ice skater begins a spin, his angular velocity is 3.75 rad/s. After pulling in his arms, his angular speed increases to 6.45 rad/s. Find the ratio of the skaters final moment of inertia to his initial moment of inertia.

Before we understood that objects have a tendency to maintain their velocity in a straight line unless acted upon by a net force, people thought that objects have a tendency to stop on their own.

What is a star's main fuel during its lifetime? A. hydrogen B. carbon C. helium D. oxygen

A customer complained of excessive vibration while cornering and accelerating at the same time. Technician A says that a fault in the transfer case is the most likely cause.

A projectile is launched over a horizontal surface in such a manner that its maximum height is 3/5 of its horizontal range. Determine the launch angle.

Two identical capacitors are arranged in a circuit. What is the ratio of the equivalent capacitance of the circuit when the capacitors are in series to that when they are in parallel?

A car's position in relation to time is plotted on the graph. What is the car's average velocity for segment C? A) - 4 m/s B) - 0.25 m/s C) 0.25 m/s D) 4 m/s

What percent of my Iodine-131 sample will be left after 7 half-lives?

A 58.0 kg snow skier is on the top of 351 m high hill. After she has gone down a vertical distance of 142 m, what is her mechanical energy? Explain your answer (CER) !