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A large parallel plate capacitor has plate separation of 0.90 cm and plate area of 283 cm2. The capacitor is connected across a voltage of 16.7 V and has air between the plates. How much work is done on the capacitor as the plate separation is increased to 1.80 cm?
The best laboratory vacuum has a pressure of about 1 × 10-18 atm, or 1.010 × 10-13 Pa. How many gas molecules are there per cubic centimetre in such a vacuum at 293K.
A gas is allowed to expand isothermally until it reaches its final volume and its pressure is 2.97 atm. Find the heat absorbed by the gas during this process
An electric motor rotating a workshop grinding wheel at a rate of 107 rev/min is switched off. Assume the wheel has the constant negative angular acceleration of magnitude 1.70 rad/s2.
A lamp is suspended by a massless string from the ceiling of a descending elevator which decelerates at 1.7 m/s2. what is the mass of the lamp
A block of ice at 0°C whose mass initially is m = 48.4 kg slides along a horizontal surface, starting at a speed vo = 4.91 m/s, Compute the mass of ice melted as a result of the friction between the block and the surface
The magnitude of the electrostatic force between two identical ions of mass 4.760×10-26 kg that are separated by a distance of 8.20 nm is 1.682×10-10 N. What is the charge of each ion
A force of 2 N is applied to a stationary 5 kg block for 0.3s. What is the speed of the block after the force is applied
Sodium ions (Na+) move at 0.794 m/s through a bloodstream in the arm of a person standing near a large magnet. what would be the magnetic force on the arm
If 0.2 kg of chai tea at 90 degrees C is poured into a 0.3 kg cglass cup(C=840 J/kg K) at 20 degrees C, what is the final temperature of the chai tea
Objective questions based on force and acceleration.
A boat is traveling upstream at 20 km/h with respect to the water of a river. The water is flowing at 4.0 km/h with respect to the ground. What is the speed of the boat with respect to the ground
A stone is dropped into a well. The sound of the splash is heard 2.30 s later. What is the depth of the well
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