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Web-based exercise. You can get the time direct from the atomic clock at NIST at www.time.gov. There is some error due to Internet delays, but the display even tells you roughly how accurate the time on the screen is. Look up the time for your state. What is the reported accuracy?
a ski starts from rest and slides down a 25deg incline 70 m long. use energy methods.a if the coefficient of friction
How much less would you weigh on the top of Mount Everest (elevation 8850) than at sea level? the value of the universal gravitational constant is 6.67 X 10^-1 N.M^2/kg^2? answer must be in % form
A golfer rides in a golf cart at an average speed of 3.63 m/s for 32.3 s. She then gets out of the cart and starts walking at an average speed of 1.16 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and w..
A wooden raft has a mass of 55 kg. When empty it floats in water (1000kg/m3) with 64% of its volume submerged. What mass of sand can be put on the raft without it sinking?
At an air show, a jet plane has velocity components vx = 720km/h and vy = 440km/h at time 4.65s and vx = 883 km/h and vy = 370 km/h at time 6.67 s. find the direction of its average acceleration
A particle moves through an angle of 45o on a circle whose radius is 85 cm. What is the arc length traveled by the particle
a billiard ball moving at 5.60 ms strikes a stationary ball of the same mass. after the collision the first ball moves
A block of mass 2.50 kg is pushed 2.20 m along a frictionlesshorizontal table by a constant 16.0 N force directed 25.0 degrees below the horizontal. Determine the work done by the applied force.
An object is thrown vertically upward with an initial velocity of 14.7m/s, how long does it take for the object to be 9.8m from its initial position
An electron is released from rest at a perpendicular distance of 10.8 cm from a line of charge on a very long nonconducting rod. That charge is uniformly distributed, with 8.1 μC per meter. What is the magnitude of the electron's initial acceleration..
The human eye is most sensitive to light having a frequency of about 5.50*1014 Hz, which is in the yellow-greenregion of the electromagnetic spectrum. How many wavelengths of this light can fit across the width of your thumb, a distance ofabout 2.0..
question a proton is fired at 7e6 ms directly towards a stationary 2e-6 c point charge that cannot move and is
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