A weightlifter does 450 J of work on a barbell in 3 s. How much power is the weightlifter generating?

The objects listed are placed at the top of a ramp and roll down to the bottom without slipping. Assuming that there is no air resistance, rank them in order from fastest average rolling speed to slowest. a. large marble b. basteball c.

When Earth pulls on an object, that object also pulls on Earth. The values of these two forces are. This phenomenon can be explained using Newton's law. We see the object move but not Earth because there's a difference in their.

4. A 15 V battery is connected to three capacitors in series. The capacitors have the following capacitances: 4.54F, 12uF and 32uF. Find the voltage across the 32uF capacitor.

A car traveling at 25m/sec, stops in 0.103 km. what is the deceleration provided by the brakes?

Star A appears brighter than star B, as seen from Earth. Therefore, star A must be closer to Earth than star B. Star A appears brighter than star B, as seen from Earth. Therefore, star A must be closer to Earth than star B. a. True b. False

In the formula for specific heat, which quantity is measured in units of J/g•°C? a - c b - Q c - T d - m

The acceleration of an object is proportional to which of the following? the mass the energy of the object the inverse of the mass the inverse of the force applied

Suppose you squeeze a sponge into a small ball. does the mass of the sponge change? Does it's density change?

A solid round bar with diameter of 2-in has a groove cut to a diameter of 1.8-in, with a groove radius of 0.1-in. the bar is not rotating.

If a pilot pulls her 12.0 kg rollaboard suitcase along the ground with a force of 25. N for 10 M. The handle she pulls on makes an angle of 36.5 degrees with the horizontal. How much work does she do over the ten meter distance?