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At the center of a 70 meter diameter circular ice rink, a 82 kilogram skater traveling north at 2.41 m/s collides with and holds on to a 57 kilogram skater who had been heading west at 3.03 m/s.
Find how long will it take them to glide to the edge of the rink?
Determine where will they reach it? Give your answer as an angle (in degrees) north of west.
A large flat plate with uniform charge density ? lies on the xy plane. What is the potential difference between the points (0, 0, a) and (a, a, 2a)
A solenoid is designed to produce a 2.74*10^-2T magnetic field near its center. It has a radious of 1.25cm and a length of 45.0 cm, how many turns must the solenoid have
when striking the pike a predatory fish can accelerate from rest to a speed of 3.5ms in 0.15s. what is the acceleration
If i have a hollow copper sphere that has an outer diameter of 20.00 cm that is floating so that everything is just submerged in a bucket of water
A weather balloon is designed to expand to a maximum radius of 17 m when in flight at its working altitude where the air pressure is 0.034 atm, what is its radius at lift-off
a dart gun suspended by strings hangs in equilibrium. the mass of the gun is 355 grams not including a dart. the gun
question a sphere of copper is subjected to 81.1 mpa of pressure. the copper has a bulk modulus of 130 gpa. by what
A sample of 2.3×1010 atoms that decay by alpha emission has a half-life of 150 min. How many alpha particles are emitted between t=30 min and t=160 min
football player kicks a ball with a speed of 22.1 m/s at an angle of 46° above the horizontal from a distance of 38 m from the goal line. What is the vertical velocity of the ball at the time it reaches the goalpost
A steel wire of length 1.7 m anddiameter 1.10 mm is joined to analuminum wire of identical dimensions to make a composite wire oflength 3.4 m. Find the resulting change in length of this composite wire
An electric charge on the x-axis oscillates sinusoidally about the origin. A distant observer is located at a point on the positive z-axis. In what direction will the electric field oscillate at the observer's location
A sound wave with an intensity level of 80.9 dB is incident on an eardrum of area 6.00 10-5 m2. How much energy is absorbed by the eardrum in 3.0 minutes
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