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A golf ball strikes a hard, smooth floor at an angle of 29.0 ° and, as the drawing shows, rebounds at the same angle. The mass of the ball is 0.0106 kg, and its speed is 39.9 m/s just before and after striking the floor. What is the magnitude of the impulse applied to the golf ball by the floor? (Hint: Note that only the vertical component of the ball's momentum changes during impact with the floor, and ignore the weight of the ball.)
The temperature of 1.3 kg of water is 34° C. To cool the water, ice at 0° C is added to it. The desired final temperature of the water is 11° C. determine how much mass m of ice should be added
A string with a mass of 31 g and a length of 2 m is stretched under a tension of 67 N. How much power must be supplied to the string to generate a traveling wave that has a frequency of 51 Hz and an amplitude of 4 cm?
A speeder passes a parked police car at 30 m/s. At that instant, the police car starts from rest with a uniform acceleration of 2.44 m/s2.
A cube of ice is taken from the freezer at -8.7 C and placed in a 111 g aluminum calorimeter filled with 315 g of water at room temperature of 20.0 C, What was the mass of the ice cube
An airplane moves at 120 m/sec to the west with respect to the air. How fast does the airplane move
An object moves with constant acceleration 5.00 m/s2 and over a time interval reaches a final velocity of 11.2 m/s. (a) If its initial velocity is 5.6 m/s, what is its displacement during the time interval?
A single string is made up of two strings of different densities joined together. Each of the strings is 1.40 m long. what is the tension on the combined string
A box starts out at the top of a frictionless ramp, then slides down. The ramp has a height h = 3 meters and a slope of 5 degrees with respect to the ground. What does this make the velocity of the box at the bottom
You put your morning coffee in a copper mug. Assuming the coffee is boiling hot (100 *C), what is the temperature of the cup of coffee
A 45-kg crate is placed on an inclined ramp. When the angle the ramp makes with the horizontal is increased to 25 degrees , At what angle does the crate begin to slide
Infrared photons cause a particular piece of metal to emit photoelectrons. Would photoelectrons be emitted when the metal is illuminated by visible light?
q1. an archer puts a 0.54 kg arrow to the bowstring. an average force of 202 n is exerted to draw the string back 1.3
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