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The diameter of the Moon's (nearly circular) orbit about the Earth is 3.6x10^5 km an dit takes 27 days for one orbit. What is (a) the Moon's tangential speed, (b) its kinetic energy, (c) the system potential energy and system total energy?
A ray of red light in air , 650nm, is incident on semicircular block of plastic n=1.51, Determine angle of reflection at first interface
An air mass has a temperature of 68 F at 970 hPa with a mixing ratio of 5 g/kg. Without any condensation or mixing, the air now has a temperature of 50 F and a pressure of 750 hPa. Find the initial and final values of:
The drill used by most dentists today is powered by a small air-turbine that can operate at angular speeds of 302000 rpm. Calculate the angular acceleration produced by the drill
X-rays with wavelengths of 0.2597 nm are detected at a scattering angle of = 170° in a Compton-scattering experiment. calculate the energy of an incident photon
At Canobie Lake Park NH the Starblaster Ride launches riders straight up into the air with a launch speed of 30 m/s, calculate the work done by the nonconservative forces
A parallel-plate capacitor has an area of 4.37 cm2, and the plates are separated by 1.07 mm with air between them. What is the potential difference across the plates of the capacitor
A 70kg block is pushed 5m up an incline against a friction force of 50N. The block is pushed to a height 1m above the ground. How much work is done by the person on the block
A solenoid of radius 1.6 cm has 351 turns and a length of 10 cm.The permeability of a free space is 1.25664 × 10^?6 V · s/A · m. Find the rate at which current must change through it to produce an emf of 56 mV
The mass of a robot is 3780 kg. This robot weighs 3540 N more on planet A than it does on planet B. What is the difference MA - MB in the masses of these planets
A total charge of Q is deposited on a solid metal sphere of radius R. This charge distributes itself uniformly over the surface, yielding an electrostatic field E~ perpendicular =(sigma / e0) n^ just outside the sphere and E~ = 0 everywhere insid..
Your friend's car is broken and you volunteer to push it to the nearest repair shop which is 2.0 km away. what is the normal force between the two bumpers
three resistors of 75, 50 , 100 ohms are connected to a 9 volt source. determine the power dissipated by the circuit
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