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If the mass is displaced by 10 mm from its equilibrium position and released, for the resulting vibration, calculate:
Show that the pressure exerted by a Fermi gas at absolute zero is
The heating and airflow ducts to and from the room are circular 0.30m in diameter, the room is 3mx4.5x6m and the air flow needs to be changed every 12 minutes
The speed of sound in ether (25 deg C, 1 atm) is 976 m/s. What is the wavelength in ether produced by a tuning fork oscillating at 1000 Hz?
A coil of 100 turns is penetrated by a flux of 0.050 Wb in 0.021 s. Determine the numerical value of the average induced emf.
A copper piece of mass 10g is suspended by a vertical spring. The spring elongates 1cm over its natural length to keep the piece in equilibrium.
How much work would be required to move a +50e-6 test charge from a point midway between them to a point closer to either of the charges?
On planet Tehar, the free fall acceleration is the same as that on Earth but there is also strong downward electric field with the field being uniform
A hot body cools from 90 degree celcius to 80 degree celcius in 5 minutes when placed in a room of temperature 30 deg C
Show that the decrease of amplitude is the same for each cycle of oscillation.
A person removes a 10.5 kg stereo amplifier from a shelf that is 1.82 m high. The amplifier is lowered at a constant speed to a height of 0.75 m.
Find by integration its moment of inertia about an axis perpencicular to the rod at its center of mass.
A 1.0x10^-3 kg spider is hanging vertically by a thread that has a Young's modulus of 4.5x10^9 N/m^2 and a radius of 13x 10^-6.
If the object barely floats, with the top surface ot the wood level with the surface of the water, find the ratio of the volumes, Vw/Va.
Assuming the block slides back down the plane, how fast will it be going when it returns to the bottom?
The generator at a power plant produces AC at 24,000 Volts. A transformer steps this up to 345,000 Volts for transmission over power lines.
A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is 0.190 and the push imparts.
If the block, after coming to rest at B, slipped along BC, what is the velocity at C. ignore the friction along the surface BC and assume the bottom.
On a frozen pond, a 10.6 kg sled is given a kick that imparts to it an initial speed of V(0) = 1.73 m/s.
A 276 kg piano slides 4.02 m down a 30.2° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline.
A simplified representation of the diesel cycle, with just air as the working substance. Show that the efficiency of the engine is:
A car can accelerate from rest to 25 m/sec in 12 seconds on a level road. The weight of the car is 10,000 newtons.
The initial speed of the skier is 6.6 m/s. After coasting a distance of 1.9 m up the slope, the speed of the skier is 4.4 m/s.
Compute the electric field, in both components and as magnitude and direction, at the midpoint between the two hanging masses.
What minimum strength is needed for a line that is to stop a salmon of weight 85 N in 8.0 cm if the fish is initially drifting at 2.5 m/s?