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Question1
heather and mathew walk eastward with a speed of 0.76 m/s east. If it takes them 50 minutes to walk to a store, how far have they walked? Reply in units of km
Question2
A central particle of charge q is surrounded by two circular rings of charged particles. What are magnitude and direction of the net electrostatic force on the central particle because of the other particles?
Question3
A cannonball fired from a gun located 20 m away from a castle rises high into the air in a smooth arc and sails down, crashing into the wall 60 m up from the ground. Establish the projectile's displacement.
An aging coyote cannot run fast enough to catch a roadrunner. He purchases on eBay a set of jet-powered roller skates, which provide a constant horizontal acceleration of 15.0 m/s2. The coyote starts at rest 70.0 m from the edge of a cliff at the ins..
Please show steps: Hydraulic engineers in the United States often use, as a units of volume of water, What volume of water, in acre-feet, fell on the town
Suppose you stir 1 kg of water until its temperatue raises by 1 degree C. How much work did you do on the water
A 42 kg pole vaulter running at 11 m/s vaults over the bar. Her speed while she is above the bar is 0.7 m/s. Avoid air resistance, as well as any energy absorbed by pole, and determine her altitude as she crosses the bar.
A 200g block is suspended from a vertical spring, causing the spring to strech by 20 cm, What is the speed of the block when it is 5.0cm above the equilibrium position
A rock climber throws a small first aid kit to another climber who is higher up the mountain. What is the vertical height between the two climbers
A 4.89-g bullet is moving horizontally with a velocity of +345 m/s, where the sign + indicates that it is moving to the right. What is the velocity of the second block after the bullet imbeds itself
A turntable 1.50m in diameter rotates at 77.0rpm. Two speakers, each giving off sound of wavelength 30.7cm , are attached to the rim of the table at opposite ends of a diameter.
A sinusoidal electromagnetic wave from a radio station passes perpendicularly through an open window that has area of 0.600m^2. How much energy does this wave carry through the window
The loaded cab of an elevator has a mass of 3.7 x 10^3 kg and moves 228 m up the shaft in 21 s at constant speed. At what average rate does the force from the cable do work on the cab.
At an outdoor market, a bunch of bananas attached to the bottom of a vertical spring of force constant 16.0 N/m is set into oscillatory motion with an amplitude of 20.0 cm. What is the weight of the bananas in newtons
A parallel-plate capacitor has the volume between its plates filled with plastic with dielectric constant K. Use Gauss's law to calculate the magnitude of the electric field in the dielectric
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