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The speed of light in vacuum is 186000 mi/s = 3.0E+8 m/s. Use this fact to find the number of kilometers in a mile.
a)_____km/mi
b) The weight of 1.00 ft3 of water is 62.4 lb, and 1.00 ft = 30.5 cm. Use this information and the fact that 1.00 cm3 of water has a mass of 1.00 g to find the weight in pounds of a 1.00-kg mass. _____lb/kg
3) The mass of one uranium atom is 4.0 10-26 kg. How many uranium atoms are there in 4 g of pure uranium?
In reality, the COP of the heat pump will only be 60 percent of the ideal value. What is the minimum power of the electric motor when the COP is 60 percent of the ideal value
A car starts from rest at a stop sign. it accelerates at 4m/s^2 for 6s, coasts for 2s, and then slows down at a rate of 3m/s^2 for the next stop sign. How far apart are the stop signs.
A 5.50kg mass traveling at 3.5 m/s on a fricktionless tabled suddenly collides, What will be the maximum compression of the spring after the composite collides into it
The electron and positron have the same velocity. What is the kinetic energy of the electron
q. a solid nonconducting sphere of radius r has a positive charge q distributed uniformly throughout its volume. since
you are standing on a bridge that is 50.0 m above a dried up riverbed. what is the minimum spring constant that the bungee cord must have for you not to hit the riverbed
A parallel plate capacitor by plate separation d is connected to a battery. The capacitor is fully charged to Q Coulombs and a voltage of V. (C is the capacitance and U is the stored energy.)
You connect five identical resistors in series to a battery whose EMF is 12.0 V and whose internal resistance is negligible. What are the resistance of each resistor and the potential difference across each resistor
A 10.0g bullet is fired horizontally into a 101g wooden block that is initially at rest on a frictionless horizontal surface and connected to a spring having spring constant 141 N/m. The bullet becomes embedded in the block. If bullet-block system co..
A spherical water drop 2.6 ?m in diameter is suspended in calm air due to a downward-directed atmospheric electric field of magnitude E = 3800 N/C. How many excess electrons does it have
A birds travels at 1.4 m/s with a fish in its claws, at 15 degrees below the horizontal. If it drops the fish that takes 1.8 seconds to land on the ground
Brutus, a champion weightlifter, raises 240 kg of weights a distance of 2.70 m. How much work is done by Brutus lifting the weights
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