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A 180 Nsphere 0.20 m in radius rolls, without slipping 6.0 m down a rampthat is inclined at 34° with thehorizontal. What is the angular speed of the sphere at the bottomof the hill if it starts from rest?
rad/s
The world consumes energy at the rate of about 456 per year, where the joule is the SI energy unit. estimate the average per capita energy consumption rate in watts
On a workday the average decibel level of a busy street is 69 dB, with 102 cars passing a given point every minute. If the number of cars is condensed to 39 cars every minute on a weekend, what is the decibel level of street.
The mass of the moon is 7.34 x 10^22 kg and its average radius is 1785 km. What was the period of the Lunar Prospector
Orb spiders make silk with a typical diameter of 0.15 .A typical large orb spider has a mass of 0.50. If this spider suspends itself from a single 12-cm-long strand of silk, by how much will the silk stretch
A 34.0kg crate is initially moving with a velocity that has magnitude 3.70m/s in a direction 37.0 %u2218west of north. How much work must be done on the crate
You are at a rock concert, and the sound intensity reaches levels as high as 100 dB. Calculate the amplitude of this oscillating force
A sinusoidal transverse wave traveling in the positive direction of an x axis has an amplitude of 1.0 cm, a wavelength of 22 cm, find the speed of the wave
To verify her suspicion that a rock specimen is hollow, a geologist weighs the specimen in air and in water. What fraction of the specimen's apparent volume is solid
A charge of -1.0 µC is located at the origin, a second charge of 3.4 µC is located at x = 0, y = 0.1 m, and a third charge of 5 µC is located at x = 0.2 m, y = 0. Find the forces that act on each of the three charges. q = -1.0 µC
The potential difference between the accelerating plates of a TV set is about 25 kV. If the distance between the plates is 1.2 cm, find the magnitude of the uniform electric field
A playground carousel is free to rotate about its center on frictionless bearings, and air resistance is negligible, What is the person's mass
In the meantime, this means the refrigerator produces 1.2177E+4 J of thermal energy that it expels into the kitchen as a result. What is the total work done by the compressor motor in the refrigerator
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