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The frequency of a wave increases. What happens to the distance between successive crests if the speed remains constant?
a) it remains the same
b) it increases
c) it decreases
d) it cannot be determined from the information given
An inductor with an inductance of 2.90H and a resistor with a resistance of 6.00? are connected to the terminals of a battery with an emf of 4.00V, Find the initial potential difference across the inductor
A 2.5kg mass is attached to a spring and placed on the horizontal, smooth surface. A horizontal force of 18.4 N is necessary to hold the mass at rest while it is pulled 0.210 m from its equilibrium position.
A car travels east at 100 km/h for 0.8 h. It then travels 30.0° east of north at 127 km/h for 1.5 h. What is the average velocity for the trip
A 53.6-kg skateboarder starts out with a speed of 2.49 m/s. He does 114 J of work on himself by pushing with his feet against the ground. How much has the vertical height of the skater changed
a heating element using nichrome connected to a 230 v supply draws an initial current of 3.2 a which settles after a
an ancient rock is found to contain ar40 gas indicating that 77 of the k40 in the rock has decayed since the rock
Given that the radius of the Moon is roughly one-quarter that of the Earth, find the mass of the Moon in terms of the mass of the Earth
In special conditions, it is possible to measure the energy of a gamma-ray photon to 1 part in 10^15. For a photon energy of of 50 keV, estimate the maximum lifetime that could be determined by a direct measurement of the spread of the photon energy.
A glass is half-full of water, with a layer of oil(n = 1.51) floating on top. A ray of light traveling downward through the oil is incident on the water at an angle of 72.9°. Take the refraction index of water to be1.333.
The catapult on an aircraft carrier can take an aircraft from 0 to 197 mph ( the launch speed) in 5 Seconds, at which time the aircraft launches
A communications satellite is in a synchronous orbit that is 3.6 x107 m directly above the equator. The satellite islocated between two cities almost on the equator that are separated by a distance of 3.5 x 106 m.
Find out the effective coefficient of kinetic friction
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