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What is the rotational speed of the hand on a clock that measures the seconds?
rpm: revolution per minute
Select one:
a. 60 rpm
b. 1 rpm
c. 3600 rpm
d. 180 rpm
e. none of above
q1. the wire is made up of atoms with valence 2 and molecular mass 80 gmole where u 1.5605 times 10-27 kg is the mass
A grindstone of mass, 30 kilogram and radius 20 centimeter, starts rotating from rest and has a constant angular acceleration of 0.40 rad/s2. Determine the wheels angular velocity at t = 15 sec
The average nascar car weights 3,400lbs. at a recent nascar racethe cars went flying around the banked curces at daytonainternational raceway. What is the centripetal force on the car keeping it goingaround the curve at a speed of 200 mph
An ice chest is maintained at 0 degrees Celsius by ice placed in it. The chest is cubical with each inside wall having an area of 1200cm^2 and a thickness of 4cm. Each wall is made of foam plastic with k= 1.3X10^-4 cal/cm/s/C. How much ice will me..
Two bicycle tires are set rolling with the same initial speed of 3.50 m/s along a long, straight road, and the distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 psi and goes a distance ..
Two blocks with masses m = 16.7 kg and M = 70.1 kg are not attached. The coefficient of static friction between the blocks is 0.45 but the surface beneath M is frictionless. What is the minimum force F required to hold m against M?
Imagine two 2.5g bags of protons, one at the earth's north pole and the other at the south pole. How many protons are in each bag
Over what time interval would the spaceship have to complete one rotation on its axis to make a bathroom scale have the same reading for the person in space as when on Earth's surface?
A cosmic ray muon is formed 100km above the surface of the earth. It is moving at 0.998 times the speed of light. how long does the muon take to reach the ground
An athlete executing a long jump leaves the ground at a 34.8 degrees angle and travels 7.86m. how much longer would the jump be
A guitar string has a linear density of 8.30 x 10^-4 kg/m. The length of the string is .660 m. The tension in the string is 52.0 N. When the fundamental frequency of the string is sounded by a tuning fork of frequency 196.0 Hz, what beat frequency is..
A wood- sphere of radius 10 centimeter has a core of lead, also in the shape of a sphere. Determine the mass of wood and lead portions
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