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A ball is dropped from a height of 4 m and makes an elastic collision with the ground. Assume that no mechanical energy is lost to air resistance.
(a) Show that the ensuing motion is periodic.
(b) Determine the period of the motion.
(c) Is the motion simple harmonic?
A flywheel is spinning with its axle pointing along the east-west direction. You are standing west of the flywheel facing toward it. What is the direction of the flywheel's angular velocity
Initially at rest, a small copper sphere with a mass of 2.10-6kg and a charge of6.10-4C is accelerated through a7700-V potential difference before entering a magnetic field of magnitude 4 T, directed perpendicular to its velocity. What is the radi..
The equation of a transverse wave traveling on a string is given by y = A sin(kx - ?t) . Data: A=11 mm, k=73 rad/m, ?= 280 rad/s. What is the amplitude? What is the frequency? What is the wave velocity? What is the wavelength? For the same wave, f..
A horizontal spring with a spring constant of 0.5 N/m sits on a frictionless table. what is the magnitude of the acceleration of the mass
A 385-kg cannon, sliding freely on a frictionless horizontal plane at a speed of 7.13 m/s, shoots a 13.5-kg cannonball at an angle of 53.3° above the horizontal. What is the velocity of the ball relative to the cannon
A 1.80 kg block slides on a frictionless horizontal surface. The block hits a spring with a speed of 2.00 m/s and compresses it a distance of 11.0 cm before coming to rest. Illustrate what is the force constant of the spring?
At the top of Earth's atmosphere, sunlight has an average intensity of 1380W/m^2 .If the average distance from Earth to the Sun is 1.5*10^11m, at what rate does the Sun radiate energy?
An Earth satellite has a speed of 29500 km/hr when it is at its perigee, 230 km above Earth's surface. Find the apogee distance, the speed at apogee, and the period of revolution.
A plastic rod is rubbed against a wool shirt, How many electrons are transferred from the wool shirt to the plastic rod? The elemental charge is 1.6 × 10?19 C
A cosmic ray electron moves at 7.00 multiplied by 106 m/s perpendicular to the earth's magnetic field at an altitude where field strength is 1.20 multiplied by 10-5 T
A molecule of DNA (deoxyribonucleic acid) is 2.22 µm long. The ends of the molecule become singly ionized, Determine the effective spring constant of the molecule
A sinusoidal wave is traveling along a rope. The oscillator that generates the wave completes 38.0 vibrations in 26.0 s, What is the wavelength of the wave
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