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A 250-N sphere 0.20 m in radiusrolls without slipping 6.0 m down a ramp that is inclinedat 40° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts fromrest?
rad/s
The output voltage of an AC source is given by ?v = 120 sin 26.0pt, where ?v is in volts and t is in seconds. Find the frequency of the source
Two similar guitar strings have the same length and mass, but slightly different tensions, If the beat frequency is 1.5 Hz, what is the ratio of the tensions of the two strings
on a cool morning when the temperature is 10 degrees celsius you measure the pressure in your cars tires to be 30 psi.
a 35 kg uniform ladder is leaned against a building. the 5 m tall ladder makes an angle of 60 degrees with the ground.
The press box at a baseball park is 40.0 above the ground. find the horizontal distance from the press box to second base
A ray of light originating in oil (n = 1.21) is incident at the Brewster angle upon a flat surface of a quartz crystal (n = 1.458). Determine the angle of incidence for this ray
An ultracentrifuge is a rotating device that can produce acceleration up to 106 g. If the distance from the center of the centrifuge out to the end of the rotating arm (where the sample goes) is 20 cm, what is the rotation speed inrevolutions per m..
A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. What is the speed through the second segment
In certain ranges of a piano keyboard, more than one string is tuned to the same note to provide extra loudness. For example, the note at 1.10 102 Hz has two strings at this frequency. If one string slips from its normal tension of 5.90 102 N to 5..
Assuming that the atom was initially at rest, determine the recoil speed of the hydrogen atom when this photon is emitted
A police car has a 1000Hz siren. It is traveling at 35m/s on a day when the speed of sounds through air is 350m/s. What change of frequency does the observer hear
An ice cube sliding along the ground at 5 m/s goes off a ramp pointed straight up as shown, What is the speed of the ice cube when it comes down, just before it hits the ground
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