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One billiard ball is shot east at 2.2 m/s. A second, identical billiard ball is shot west at 0.8 m/s. The balls have a glancing collision, not a head-on collision, deflecting the second ball by 90 degree and sending it north at 1.54 m/s. Find the speed and direction of the first ball after the collision?
m/s
°south of east
a person of mass 50 kg has a wavelength of 4.42 x 10^-36 m when running. how fast is she running
On a weekend archeological dig, you discover an old club-ax thatconsists of a symmetrical 9.2 kg stone attached to the end of auniform 2.6 kgstick. You measure the dimensions of the club-ax as shown in the figure:
A cube of ice, 27 cm on each side, is melted into a measuring cup. What is the volume of the liquid water
If a hot air balloon floats at a constant elevation (it has reached equilibrium) where the local atmospheric pressure is 98 kPa (abs) and outside air temperature is 285 K, and the hot air inside the balloon is at 400 K
a 4 m string is held fixed at both ends. when driven by 108 Hzsource, the string vibrates in 4 distinct segments. What is the natural fundamental frequency of the string
Two hydrogen atoms travelling at the same speed collide headon. The collision brings both atoms to a halt. Immediatelyafter the collision each atom emits a 121.6 photon. What was thespeed of each atom just before the collision?
A steam turbine receives steam at a pressure of 1MPa, 300degC. The steam leaves the turbine at a pressure of 15kPa. The work output of the turbine is measured and is found to be 600kJ/kg of steam flowing through the turbine.
A motorcycle has a constant speed of 28.4 m/s as it passes over the top of a hill whose radius of curvature is 159 m. Find the magnitude of the centripetal force
A spring stretches 4.1 cm when a 11 g mass is hung from it. If a total mass of 25 g attached to this spring oscillates in simple harmonic motion,how to calculate the period of motion.
A child sitting 1.06 m from the center of a merry-go-round moves with a speed of 1.35 m/s. Calculate the centripetal acceleration of the child
estimate the speed of the car just before braking. how much time passes before the brick lands on the ground..
This assembly is made with mass less strings attached to balls. Ball A (m = 0.3kilogram) is released from height 0.2 meter above Ball B (m = 0.5kilogram) also at rest. Find what max height does each ball achieve after collision
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