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A person stands on a bathroom scale in a motionless elevator. Whenthe elevator begins to move, the scale briefly reads only0.64 of the person's regular weight. Calculate the acceleration of the elevator, and find the direction of acceleration.
m/s2
A bat moving with a speed of 3.15{\rm m/s} and emitting sound of 39.0{\rm kHz}, What frequency is heard by the moth
A charging RC circuit controls the intermittent windshield wipers in a car. The emf is 12.0 V. What resistance should be used in the charging circuit
In 1994, Mata Jagdamba of India had very long hair. It was 4.23 m long. Suppose Mata conducted experiments with her hair. how large was the mass
A 70 kg teen is riding a popular amusement park ride in which a large cylindrical chamber of diameter 4 meters, is spun along a vertical axis. what torque must have been applied to get it going
A 1410-kg racecar is driving around a circular track of radius 161 m. What is the magnitude of the net force acting on the vehicle at this time and the force's direction relative to the velocity
question1what is relative velocity in meters per second between an observer on earth and a galaxy where the h-beta line
An electron experiences the greatest force as it travels 1.02*10^6 m/s in a magnetic field when it is moving horizontally. The force is upward and of magnitude 1.75*10^-12 N. What is the magnitude of the magnetic field?
A resonant circuit using a 240 μF capacitor is to resonate at 15.5 kHz. How many loops will the inductor contain
A point charge with q1 = +2.8 C is located at x = 3.0 m, y = 0, and a second point charge with q2 = +4.4 C is at x = +1.0 m, y = +3.0 m. What are the components of the electric field at x = +1.0 m, y = 0
A small turbo-prop commuter airplane, starting fromrest on a Tallahassee airport runway, accelerates for 22.5s before taking off. Its speed at takeoff is 50.6m/s.
q1. originally a wheel rotating about a fixed axis at a constant angular deceleration of 0.7 rads2 has an angular
A compact 60.00 kg object is attached to one end of a horizontal 40kg uniform steel tube 2.40 m long. What is the distance from the loaded end to the center of gravity of object-tube system?
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