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waves from a radio station have a wavelength of 319 m they travel by two paths to a home receiver 192 km from the
a freely falling object at earthrsquos surface drops vertically 5 m in 1 s earthrsquos curvature ldquodropsrdquo 5 m
how many photons per second are emitted by a monochromatic lightbulb 640 that emits 45 of power if you stand 15 from
a 102-g bullet is fired into a stationary block of wood having mass m 501 kg the bullet imbeds into the block the
for one approach to this problem consult interactive learningware 241 for each of the three sheets of polarizing
an industrial laser is used to burn a hole through a piece of metal the average intensity of the light is 172 times
the power dissipated in a series rcl circuit is 896 w and the current is 0439 a the circuit is at resonance determine
when you take your 1200 kg car out for a spin you go around a corner of radius 577 m with a speed of 157 ms the
given mearth 598 times 1024 kg rearth 637 times 106 m a satellite of mass 649 kg is in a circular or- bit at an
given g 667259 times 1011 nm2kg2 a small moon of a planet has an orbital period of 0714 days and an orbital radius of
a ldquosynchronousrdquo satellite which always re- mains above the same point on a planetrsquos equator is put in orbit
a 0269-kg volleyball approaches a player horizontally with a speed of 162 ms the player strikes the ball with her fist
a 0320 kg croquet ball makes an elastic head-on collision with a second ball initially at rest the second ball moves
a circuit consists of an 100- resistor in series with a 55-f capacitor the two being connected between the terminals of
a tennis player hits a 580g tennis ball so that it goes straight up and reaches a maximum height of 705m a how much
a person 16 m tall stands 29 m from a reflecting globe in a garden a if the diameter of the globe is 33 cm where is the
nate the skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding in
in a typical experiment to study the force between electric currents in identical fixed and movable wires the centres
weak magnetic fields can be measured at the surface of the brain although the currents causing these fields are quite
a 142kg create is placed on an inclined ramp when the angle the ramp makes the horizontal is increased to alfa the
a space craft with a mass equal to 25mass of moon is in orbit about the sun with a period of 3 years a calculate the
the primary of a step-down transformer has 240 turns and is connected to a 120 v rms line the secondary is to supply 29
show that the transformation of the horizontal pressure gradient force from z to isentropic potential temperature
a gyroscope is precessing about a vertical axis describe what happens to the precession angular speed if the angular
a series rlc circuit with l 12 mh c 29 f and r 61 is driven by a generator with a maximum emf of 115 v and a