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At a party, 5.00 kilogram of ice at-4.10°C is added to a cooler holding 30 liters of water at 20.0°C. Evaluate the temperature of the water when it comes to equilibrium? °C
one of your summer lunar space camp activities is to launch a 1130-kg rocket from the surface of the moon. you are a
A 113 gram apple falls from a branch that is 2.5 meters above the ground. Just before the impact, what is the speed of the apple
A person pushes on a stationary 125 N} box with 69N at 30degrees below the horizontal, as shown in the figure. The coefficient of static friction between the box and the horizontal floor is 1.20. What is the normal force on the box?
A turntable must spin at 33.5 rpm (3.51 rad/s) to play an old-fashioned vinyl record. How much torque must the motor deliver if the turntable is to reach its final angular speed in 1.0 revolutions, starting from rest
A small drop of oil is suspended motionless in the air by a uniform electric field that is directed upward and has a magnitude of N/C, What is the mass of the drop
an electron is located on the x axis at x0 -9.89 times 10-6 m. find the magnitude and direction of the electric field
What is the average translational kinetic energy of nitrogen molecules at 1400 K
An electron is in a certain energy state in a one-dimensional, infinite potential well from x = 0 to x = L = 125 pm. What is the change in the electron's energy
What is the magnitude of the electric field. A 50-gram super ball traveling at 25m/s is bounced off a brick wall and rebounds at 22 m/s. A high speed camera records this event. If the ball is in contact with wall for 3.5 ms, what is the average acc..
An electron traveling at 503 m/s enters a9.4 T magnetic field. The angle betweenthe velocity and the field is 109o. Find the radius of the resulting circular path.
The ball leaves his racket with a speed of 16.0 m/s at an angle 5.5 degrees above the horizontal. The horizontal distance to the net is 7.0 m and the net is 1.0 m high. Explain by how much did the ball clear the net?
A race car is making a U-turn at constant speed. The coefficient of friction between the tires and the track is ?s = 1.61. what is the maximum speed at which the car can turn without sliding
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