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A 67.0-kg person throws a 0.0500-kg snowball forward with a ground speed of 25.0 m/s. A second person, with a mass of 59.0 kg, catches the snowball. Both people are on skates. The first person is initially moving forward with a speed of 2.10 m/s, and the second person is initially at rest. What are the velocities of the two people after the snowball is exchanged? Disregard the friction between the skates and the ice. thrower m/s catcher m/s
A student doing an experiment pours 0.110kg of heated copper shot into a 0.355-kg aluminum calorimeter cup containing 0.170kg of water. What was the initial temperature of the shot
A 12.0 micro F capacitor is connected to a power supply that keeps a constant potential difference of 22.0V across the plates. By how much did the energy change during the insertion
In the circuit shown in the figure, the capacitors are all initially uncharged and the battery has no appreciable internal resistance. find the maximum potential difference across each capacitor
Two 5.0cm×5.0cm metal electrodes are spaced1.1mm apart and connected by wires to the terminals of a 9.0 V battery. What is the potential difference between electrodes
The first controlled, sustained flight in a heavier-than-air craft was made by Orville Wright on December 17, 1903. Calculate the average velocity of the plane
A shell is shot with an initial velocity v1 of 33 m/s, at an angle of 60° with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass (Fig. 8-26). One fragment, whose speed immediately after the explosion is..
Determine the minimum thickness of a soap film (n= 1.80) that will result in constructive interference of a specific red line with wavelength 610 nm
Consider a spider walking from the top of a (stationary) beach ball. (Let that angular position = 0O.), At what angle does this slipping begin
A car moving at 37 m/s approaches a stationary whistle that emits 270 Hz sound. The speed of sound is 347 m/s. What is the frequency of sound heard by the driver of the car.
A converging lens (f1 = 24.0 cm) is located 56.0 cm to the left of a diverging lens (f2 = %u221228.0 cm). How far is the object from the converging lens
Two figure skaters, one weighing 625N and the other 700N , How much kinetic energy is created during the skaters maneuver
A radiator has an emissivity of .90 and its exposed area is 1.23 m^2. the temperature of the radiator is 100 degrees C, what is the heat flow rate from the radiator
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