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A 0.247 kilogram ball is approach a player horizontally with a speed of 15.7 m/s. The player strikes the ball with her fist and causes the ball to move in the opposite direction with a speed of 22.0 m/s.
Find what impulse is delivered to the ball by the player? kg.m/s
If the player fist is in contact with the ball 0.060 second, find what is the magnitude of the average force?
In a certain series RLC circuit being driven at a frequency of 60.0 Hz, By what phase angle does the current lag the generator emf
A loudspeaker of mass 22 {rm kg} is suspended a distance of h = 2 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has the length of l = 3.90 {rm m}.
the pericarppart of a popcorn kernel is a small container of liquid water. when the poppcorn is heated to about 180 degrees C, what is the change in entropy of the water due to the vaporization and expansion
find the equivalent capacitance of a 3.90 microf capacitor and an 10.50 microf capacitor when they are connected as
An 84.4-mH inductor and a 6.27-µF capacitor are connected in series with a generator whose frequency is 361 Hz. Determine the rms voltage across the inductor
A charged particle moves 19 mm in electric field with magnitude of 242 N/C If electrical potential energy of moving charge decreases by 91.3 x 10^-19 J due to this motion what is the charge of this moving particle
question1a tank of water sits at the edge of a table of height 1.0 m. the tank springs an extremely small leak at its
Electrons accelerated by a potential difference of 12.86 V pass through a gas of hydrogen atoms at room temperature. Calculate the wavelength of light emitted with the longest possible wavelength
A car travels up a hill at constant speed of 40km/h and returnsdownhill at the speed of 60km/h. Calculate the average speed for the round trip
A 1125 kg car and a 2250-kg pickup truck approach a curve on the express way that has a radius of 225 m. (a) At what angle should the highway engineer bank this curve so that vehicles traveling at 95 km/h can safely round it? (b) As car and truck ..
At what height above the earth is the acceleration due to gravity 45% of its value at the surface, What is the speed of a satellite orbiting at that height
A rotating wheel requires 8.00 s to rotate 26.0 revolutions. evaluate the constant angular acceleration of the wheel
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