Two gears are connected. Gear A has 10 teeth, while gear b has 40 teeth. If gear B turns at 10 rpms, how fast will gear a turn?

Suppose a star is 500 light - years away from earth is moved to be 600 light - years away. Which statement is correct? A. the value of the star's absolute magnitude decreases. B. the value of the star's absolute magnitude increases. C.

A uniform, thin, solid door has height 2.30 m, width 0.875 m, and mass 24.0 kg. (a) find its moment of inertia for rotation on its hinges.

What is the work done in raising a 2000-kg block 5m vertically

What two simple machines make up a screw?

Some hydrogen gas is enclosed within a chamber being held at 200∘c with a volume of 0.0250 m3. the chamber is fitted with a movable piston. initially, the pressure in the gas is 1.50*106pa (14.8 atm).

Describe how mass affects the time required for an object to reach the ground from a given drop height.

A wire of length 25.0 cm carrying a current of 4.21 mA is to be formed into a circular coil and placed in a uniform magnetic field B with arrow of magnitude 5.55 mT. Suppose the torque on the coil from the field is maximized.

Compare the weight of a mountain climber when she is at the bottom of a mountain with her weight when she is at the top of the mountain. In which case is her weight larger? a. Both are the same. b. She weighs four times as much at the top. c.

You recently won a bicycle race that was 100 km in distance. The race took you two hours to complete. What was your average speed?

A hydrogen atom has one proton, two neutrons, and no electrons. Is this atom neutrally charged? Explain your answer.