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A hydraulic jack is made with a small piston 1.2 cm in diameter that is used to move a large piston 5.2 cm in diameter. how heavy a load can he lift with the jack
what is the available energy content, in joules, of a battery that opperates a 2.00 w electric clock for 18 months
An FM radio station broadcasts an oscillating radio wave, What is the frequency of the oscillations in the radio transmitter
Suppose you walk into a sauna that has an ambient temperature of 50.0 C. Calculate the rate of heat transfer to you by radiation given your skin temperature is 37.0 C
A 60.0-kg skier with an initial speed of 12.0 m/s coasts up a 2.50-m-high rise as shown in Figure 8. Find her final speed at the top
A camera has a lens with a focal length of 26.8 cm. how far from the film should the lens be placed
A plastic bag is filled with nitrogen at atmospheric pressure and 27.0 oC. How large a volume of nitrogen (in m3) is required
A commuter train blows its 200-Hz horn as it approaches a crossing. The speed of sound is 335 m/s. An observer waiting at the crossing receives a frequency of 208 Hz. What is the speed of the train
A block is moved down an incline a distance of 5.0m from point A to point B by a force F that is parallel to the incline and has a a magnitude of 2.0 N
A 2.6kg block slides along a frictionless surface at 1.9m/s . A second block, sliding at a faster 5.0m/s , collides with the first from behind, What was the mass of the second block
Matthew pulls his little sister Sarah in a sled on an icy surface (no friction) with a force of 60 N at an angle of 600 upward from the horizontal
A proton is moving with an initial velocity of 6.28 x 10^5 m/s straight towards a large conducting sphere of radius 85.2 cm. What is the voltage on the surface of the sphere
A series RLC circuit has a resistance of 24 %u03A9 and an impedance of 100 %u03A9. what average power is delivered to the circuit
There is a straight plastic rod that is parallel to the y axis with length L and total charge Q.Point P is placed on the x axis half way down the rod
A steel ball of mass .5 kg is fired vertically up from the edge of a building 20 m high with an initial speed of 10 m/s. find the average resistance force that sand exerts on the ball
A thin spherical shell of mass 0.25 kg and radius 0.15 m is released from rest from the top of a 3.0-m high ramp. What would the linear speed be at the bottom
An object of mass m = 0.33 kg sits on a frictionless surface and is attached to the end of a spring with spring constant k = 2.5 N/m. What is the frequency of oscillation
Two resistors of wattage 100 W each is connected in series with a source. Find the total watage of load connected in circuit
A Ferris wheel has a radius of 5.0 m and makes one revolution in 8.0 seconds. A person weighing 670 N is sitting on one of the benches attached at the rim of the wheel. what is the apparent weight o
Given a sphere of charge inside a conductor. The sphere has a radius of 5cm. Find the charge on the outisde of the conductor
Just as you had done in your lab, imagine that you have a solid uniform disk (same as a uniform cylinder) with a string wound around its rim. What is the angular acceleration of the disk
A fellow student of mathematical bent tells you that the wave function of a traveling wave on a thin rope isy(x,t)= 2.10mm cos[( 6.96rad/m )x+( 744rad/s )t]. Determine the average power transmitted
Carbon disulfide (CS2) has a vapor pressure of 300 Torr at room temperature, estimate the average time between collisions that the gas is experiencing inside the test chamber
A vertical, 1.30-m length of 18-gauge (diameter of 1.024 mm) copper wire has a 160.0-N ball hanging from it. What is the wavelength of the third harmonic for this wire
The tank is shelling at a target that is 4km away and 60m above ground. what should be the release speed of the shell