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What is the approximate distance between the Earth and the Moon if the radius of the Earth is approximately 6x10^6m, the period of orbit for the moon around the Earth is 28 days and the acceleration of gravity on Earth is g=9.81m/s^2
At its highest temperature, a space heater has a resistance of 31.5 ? when it is plugged into a wall outlet supplying a peak voltage of 169.7 V sinusoidally at 60 Hz
Demonstrate that gravitational energy is not extensive: show that the gravitational energy of a sphere of radius 'r' and uniform density varies with volume V^n and find the exponent 'n'.
A certain cablecar in San fransisco can stop in 10 sec upon the application of the brakes while traveling at full speed Upon seeing a dog ahead of the car the driver instantly applies the full brakes, How far was the cable car from the dog when the..
A cube of copper with each edge having the dimension 12.7 mm, is put in a vise and squeezed by a force of 215 N exerted by either side of the vise. What is the stress in the copper cube
q1. a bumper car with mass m1 108 kg is moving to the right with a velocity of v1 4.6 ms. a second bumper car with
A photon energy 500KeV undergoes Compton scattering from the proton that is initially at rest. (a) what is the recoil Kinetic energy of the proton in eV?
A parallel-plate air-filled capacitor having area 44.0 cm2 and plate spacing 2.80 mm is charged to a potential difference of 620. V.
A 109-kg horizontal platform is a uniform disk of radius 1.69 m and can rotate about the vertical axis through its center. A 61.5-kg person stands on the platform at a distance of 1.15 m from the center and a 27.5-kg dog sits on the platform near ..
An ac generator with a frequency of 150Hz and an rms voltage of 22.5V is connected in series with a 15.0kilo ohms resistor and a 0.210microF capacitor. What is the rms current in this circuit?
A 1-m long pendulum with a mass of 5 kg moves at a velocity of 3 m/s at the bottom of its swing. What is the tension in the string at this point
A cube of ice is taken from the freezer at -9.5°C and placed in a 105 g aluminum calorimeter filled with 323 g of water at room temperature of 20°C. What was the mass of the ice cube
An aluminum cup contains 225 g of water at 27°C. A 450 g sample of silver at a initial temperature of 85°C is placed in the water. Of 45 g copper stirrer is used to stir the mixture until it reaches its final equilibrium temperature of 32°C. What is ..
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