What is the electric force between a +3 µC point charge and a –3 µC point charge if they are separated by a distance of 5.0 cm? (µC = 1.0 × 10–6 C)

A scuba diver uses his waterproof flashlight to shine a beam of light so that it strikes the surface of the water at an angle of incidence θi. Use Snell’s law to find the angle of incidence that would...

A 1.2 m diameter hoop with moment of inertia, Ih = Mr^2, starts from rest at a height 1.2 m above the base of an inclined plane and rolls down (without slipping) to the bottom. What is the linear...

Engines are often rated by their torque output. A certain engine produces a maximum torque of 200 ft·lb on its 4.00 cm diameter crank shaft. Calculate the maximum force it can produce at the edge...

Two children push on opposite sides of a door during play. Both push horizontally and perpendicular to the door. One child pushes with a force of 165 N at a distance of 0.400 m from the hinges, and...

When tightening a bolt, you push perpendicularly on a wrench with a force of 155 N at a distance of 0.120 m from the center of the bolt. Convert this torque to footpounds.

When tightening a bolt, you push perpendicularly on a wrench with a force of 155 N at a distance of 0.120 m from the center of the bolt. How much torque are you exerting in newtons ✕ meters (relative...

A uniform meter stick has a 40.0 g mass placed at the 20 cm mark as shown in the figure, If a pivot is placed at the 42.5 cm mark and the meter stick remains horizontal in static equilibrium, what...

A 65 kg astronaut is in a spaceship 3.6x10^6 m from the center of the moon If the spaceships accelerates toward the moon at 1.8 m/s^2, what is th apparent weight of the astronaut?  ...

What is the electric force between a +3 µC point charge and a –3 µC point charge if they are separated by a distance of 5.0 cm? . (µC = 1.0 × 10–6 C)

Two objects, one with a mass of 20 kg traveling at 30 m/s and the other with a mass of 10 kg traveling at 20 m/s, moving toward each other collide inelastically. What is their velocity after collision...

Mary applies a force of 76 N to push a box with an acceleration of 0.60 m/s^2. When she increases the pushing force to 85 N, the box's acceleration changes to 0.87 m/s^2. There is a constant friction...

In an exciting game, a baseball player manages to safely slide into second base. The mass of the baseball player is 88.9 kg and the coefficient of kinetic friction between the ground and the player...

You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 265 N in the positive x direction to try and move the 59 kg refrigerator. The coefficient of static...

You are helping your friend move a new refrigerator into his kitchen. You apply a horizontal force of 265 N in the positive x direction to try and move the 59 kg refrigerator. The coefficient of static...