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Four identical charges (+2.2 %u03BCC each) are brought from infinity, Determine the electric potential energy of this group
A tennis player receives a shot with the ball (0.060 0 kg) traveling horizontally at 55.0 m/s, What work does the racquet do on the ball
The scale of a spring balance that reads from 0 to 15.0 kg is 12.0 cm long. How much does the package weigh
The electric field midway between two equal but opposite point charges is 745 N/C, What is the magnitude of the charge on each
Four horses are tethered at 4 corners of a square field of side 70 metres so that they just cannot reach one another. What is the area left ungrazed by the horses
A small object, which has a charge q = 7.4 µC and mass m = 9.85 10-5 kg, is placed in a constant electric field. Determine the magnitude of the electric field
A 10 kg block is sitting motionless next to a spring that has a spring constant of 500 N/m. How far is the spring compressed while you are still holding it
a person whose weight is W = 658 N doing push-ups. Find the normal force exerted by the floor on each hand
A block weighing 15.0 N is attached to the lower end of a vertical spring (k = 122.0 N/m), What is the maximum kinetic energy of the block as it oscillates
A man in a restaurant asked a waiter for a juice glass, a dinner plate, water, a match, and a lemon wedge. How did the waiter get the water into the glass
A spring has of constant k=1200 N/m is compressed by 8.0cm. A 2.5kg block is placed against the compressed spring. find the resulting kinetic energy and speed of the block
Show that the one-dimensional Vlasov equation and show that the off-diagonal terms of the pressure tensor
A block sits on a plate that in turn rests on the surface of a fluid, what is the pressure P in the fluid just below the plate
A 4.3-kg solid sphere, made of metal whose density is 4700 kg/m3, is suspended by a cord. Find the density of the liquid
You notice you are running low on gas in your 1200kg car, and you are hoping you have enough gas to reach the bottom of the hill. what will your speed be at the bottom of the hill
At 2500K hydrogen gas (H2) adds two more degrees of freedom to its motion. It has three translation motions, two rotational motions, What would be its kinetic energy per molecule
Catapult fires an 800-kg rock with an initial velocity of 100 m/sat a 40° angle from ground. What is the magnitude of the horizontal impulse
On a cold winter's day heat leaks slowly out of a house at the rate of 25.0kW. find the rate of entropy increase
After inverting the tube 100 times, the temperature of the lead shot is found to have increased by 30C. Calculate the work done on the lead shot
A circuit consists of a 259- resistor and a 0.260-H inductor. Determine the phase angle between the current and the voltage of the generator. Note: The ac current and voltage are rms values and power
An inductor has an inductance of 0.074 H. The voltage across this inductor is 30 V and has a frequency of 850 Hz
Water flowing through a garden hose of diameter 2.72 cm fills a 22.0-L bucket in 1.60 min. What is the speed of the water leaving the end of the hose
An object weighing 335 N in air is immersed in water after being tied to a string connected to a balance. Find the density of the oil
A 120 g copper calorimeter cup contains 185 cm3 of water and 25 g of ice, all in thermal equilibrium. What was the initial temperature of the iron
A heat engine is composed of of a monatomic ideal gas which runs in the following cycle: At point A the pressure is 2.6 atm, What is the efficiency of this heat engine