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Which pulls harder gravitationally, the Earth on the Moon, or the Moon on the Earth? Which accelerates more? Explain your answers in terms of relevant principles of physics.
Many chemical reactions release energy. Suppose that at the beginning of a reaction, How much electric potential energy was lost in this reaction (in units of eV)
a 200kg ball is shot from a 2200kg cannon horizontally and positivly at 200m/s. what is the cannons speed, in respect of Earth
At t1 = 5.00 s, the acceleration of a particle moving at constant speed in counterclockwise circular motion is a1=(2m/s^2)i + (9m/s^2)j At t2 = 6.00 s (less than one period later), the acceleration is a2= (9m/s^2)i - (2m/s^2)j The period is more t..
two loudspeakers placed 6.0 m apart are driven in phase by an audio oscillator, whose frequency range is 1350 Hz to 1826 Hz. What is the frequency produced by the oscillator
The E string of a violin has a lenght of 0.33 m and a fundamental frequencynof 659 Hz. The tension of the string is 55N, What is the wave velocity of the string
Explain how fast will he be moving backward just after releasing the ball?
The magnitude of the vector is 45.0 units and points in the direction 386 counter clockwise from the positive x-axis. Calculate the x-component of this vector.
The tortoise can run with a speed of 0.1 m/s and the hare can run with a speed of 2 m/s. They start their race at the same time, but the hare, feeling confident, stops along the way for a two minute nap, and the tortoise wins by the length of his ..
A woman is reported to have fallen113ft from a building, landing on a metal ventilator box, which she crushed to a depth of25in. Calculate the time it took to crush the box
Determine the normal force exerted by the road on the car, the normal force exerted by the car on the 73-kg driver, and the car speed at which the normal force on driver equals zero.
Equipotentials between two parallel lines with a floating circular electrode: I dont need to know the exact potentials, What should be the potential inside the electrode
Florence, who weighs 120 lbs, stands on a bathroom scale in an elevator. What would the scale read when the elevator is accelerating downward at 2m/s2.
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