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A 70.0-kg person throws a 0.0420-kg snowball forward with a ground speed of 33.0 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 2.50 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.
The intensity of a lightbulb with a resistance of 160 ohms is controlled by connecting it in series with an inductor whose inductance can be varied from L = 0 to L sub max. What is the average power dissipated in the lightbulb when L = 0
In a slide or movie projector, the film acts as the object whose image is projected on a screen. how wide will the picture be on the screen
When two identical ions are separated by a distance of 5.9 10-10 m, the electrostatic force each exerts on the other is 6.0 10-9 N. Evaluate how many electrons are missing from each ion?
What is the least radius of the circular path? (b) At this radius, what is the force causing the centripetal acceleration of the pilot.
A man with mass m1 = 54 kg stands at the left end of a uniform boat with mass m2 = 174 kg and a length L = 2.6 m. After the man walks to the right edge of the boat, what is the new location the center of the boat
A cyinder with a moving piston contains 0.05m^3 of gass at the temperature of 20c and prassure 100kpa. what is the new volume of the gass
A 1000-kg sports car (including the driver) crosses the rounded top of a hill (radius = 90.0m ) at 22.0m/s. Determine the normal force exerted by the road on the car
A 7.90×10-2-{rm kg} toy airplane is tied to the ceiling with a string. While the airplane's motor is started, it moves with a constant speed of 1.20m/s in a horizontal circle of radius 0.50m.
A 224-? and a 211-? resistor are connected in series across an unspecified power supply. what is the exact current (in A) through the 211-? resistor
A 0.1kg ball is attached to a string and whirled around in a circle overhead, What is the maximum speed the ball can have when the radius of corcle is 1m
The acceleration due to gravity on the Moon is about one-sixth what it is on Earth. how many times higher will it go than it would on Earth
Because of salt content, the density of the water in the Dead Sea (Middle East) is greater than ocean water. Air pressure (at sea level) is 1.013 x 105 Pa. Calculate the density of the water in the Dead Sea in kg/m3. g = 9.8 m/s2
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