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A ball of mass 0.440 kg moving east (+x direction) with a speed of 3.80 m/s collides head-on with a 0.580 kg ball at rest. If the collision is perfectly elastic, what will be the speed and direction of each ball after the collision?
An elevator cabin has a mass of 350.5 kg, and the combined mass of the people inside the cabin is 183.7 kg. obtain the tension in the cable
One way to decrease your use of fossil fuels is to heat your water via solar radiation. A solar water heater runs cold water through dark, radiation absorbing tubing.
a box sits on a horizontal wooden board. the coefficient of static friction between the box and the board is 0.25. you grab one end of the board and lift it up, keeping the other end of the board on the ground. what is the angle between the board ..
An airplane with a speed of 76.6 m/s is climbing upward at an angle of 49.5 ° with respect to the horizontal, Relative to the ground, determine the angle of the velocity vector of the package just before impact
An oil droplet with 10.0 excess electrons is observed between two parallel electrodes spaced 12.0 mm apart. What is the radius of the droplet
Two friends are carrying a crate of mass 200 kg up a flight of stairs. The crate has length 1.25 m and height 0.500 m, What is the magnitude of the upper person's force
A scaffold of mass 44 kg and length 6.0 m is supported in a horizontal position by a vertical cable at each end. What is the tension in the cable closer to the painter
Here in Boulder, normal atmospheric pressure is NOT 1 atm (that's down at sea level) Let's call it 0.850 atm on a given day. what is the amplitude of the pressure wave
An eagle (mA = 4.3 kg) moving with speed vA = 7.8 m/s is on a collision course with a second eagle (mB = 5.6 kg) moving at vB = 10.2 m/s in a direction perpendicular to the first
You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, Find the net downward force on the tank's flat bottom, of area 2.45m2 , exerted by the water and air inside the tank and the air outside the tank
The 87?F capacitor in a defibrillator unit supplies an average of 6500 W of power, To what voltage is the capacitor charged
A stone is dropped into a river from a bridge 41.9 m above the water. What is the initial speed of the second stone
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