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A crate is dragged 3.0 meter along a rough floor with a constant velocity by a worker applying a force of 500 Newton to a rope at an angle of 30o to the horizontal.
a) Calculate how many forces are acting on the crate?
b) Calculate how much work does each of these forces do? State specific values for each force.
c) Calculate the total work done on the crate?
The half-life of Uranium(238 upper index 92 lower index) against alphy decay is 4.5x10^9 yr. How long does it take for seven-eigths of a sample of this isotope to decay
If the height of the candies in the container increases at the rate of 0.26 cm/s, at what rate (kilograms per minute) does the mass of the candies in the container increase?
Consider a 60 W light bulb with a 2.0m long tungsten filament connected to a 120V source, Determine the resistance of the filament
An electron moves in a circular path perpendicular to a constantmagnetic field with a magnitude of 5.00 mT. The angular momentum of the electron about the center of the circle is 2.50multiplied by 10-25J·s.
A stone is thrown outward from the top of a 59.4m high cliff with an upward velocity component of 19.5 m/s. How long is the stone in the air
A 93.9 gram lead ball is dropped from rest from a height of 4.72 meter. The collision between the ground and the ball and is totally inelastic. determine its change in temperature
A typical capacitor in an MP3 player has C = 0.10µF. If a charge ±4.3µC is placed on the plates, what is the voltage across the capacitor?
Consider a series LRC circuit with R=66 ?, L=0.19 H and C=0.1 µF. The current is 15 mA amplitude at 1.7 kHz. Find the angular resonant frequency of oscillations
If a violin string vibrates at 400 as its fundamental frequency, what are the frequencies of the first four harmonics
A 5.0 µC point charge is placed in an external uniform electric field of 1.60 104 N/C. At what distance from the charge is the net electric field zero
discuss the steps required in calculating the collector-emitter voltage in a vdb circuit. why does this circuit have a
A soccer player kicks the ball toward a goal that is 37.0 m in front of him. The ball leaves his foot at a speed of 28.8 m/s and an angle of 76.4 ° above the ground. Find the speed of the ball when the goalie catches it in front of the net.
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