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A body is thrown vertically upward. When it passes a point h above its starting point, its velocity is 1/3 its initial velocity, Find how high does it rise above its starting point?
A satellite of Mars, called Phobos, has an orbital radius of 9.4 106 m and a period of 2.8 104 s. Assuming the orbit is circular, determine the mass of Mars
An electromagnetic velocity filter (sometimes called a Wien filter) is used in a variety of experiments and other applications, such as electron microscopes, in which we need a beam of charged particles all going at the same speed. Generally the s..
question an emf of 10 v is connected to a series rc circuit consisting of a resistor of 2.0 x 106nbspomega and a
During each cycle, a refrigerator ejects 605 kJ of energy to a high-temperature reservoir, Determine the work done on the refrigerant in each cycle
A ball is thrown horizontally from a 12 m high building with a speed of 8.0 m/s. How far from the base of the building does the ball hit the ground
how much force is needed to stretch a spring k 1000 nm by 8 cm? a simple pendulum has a period t. if we double the
Calculate the increase in internal kinetic energy (that is, for the ship and the shell). This energy is less than the energy released by the gun powder-significant heat transfer occurs
In a nuclear power plant, the reactor produces 361? C steam that is used to power the steam turbines which generate 2202 MW of electrical power. The cooling tower eliminates the waste heat at 55?C. If the efficiency of the plant is that of a Carno..
When light of wavelength 303 nm falls on a potassium surface, electrons are emitted that have a maximum kinetic energy of 1.99 eV. What is the work function of potassium? The speed of light is 3 × 10^8 m/s and Planck’s constant is 6.63 × 10^?34 J · s..
question is a transformer has 100 primary turns and 200 secondary turns. what is the current in the secondary coil if
if a quasar is 100 times more luminous than a bright galaxy absolute magnitude about -21 what is the absolute magnitude
Sally travels by car from one city to another. She drives for 24 min at 63.0 km/h, 52.0 min at 42.0 km/h, and 18.0 min at 81.0 km/h, and she spends 5 min eating lunch and buying gas.
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