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A disk7.97cm in radius rotates at a constant rate of1160rev/min about its central axis.
(a) Determine its angular speed.
rad/s
(b) Determine the tangential speed at a point3.08cm from its center.
m/s
(c) Determine the radial acceleration of a point on the rim.
km/s2
(d) Determine the total distance a point on the rim moves in2.09s.
m
A 1600 kg car starts from rest at A, coasts 180m through a dip and comes to stop at B after coasting a distance d on level ground. If the rolling resistance is a constant force of 280N, conclude the distance d.
q1. a 35.0- battery with negligible internal resistance a 90.0- resistor and a 1.75 inductor with negligible resistance
Graphing either versus or versus gives a straight line. In the graph shown above, we chose to plot on the vertical axis, find the magnitude of the crankshaft's angular acceleration
a physics professor demonstrates the doppler effect by tying a 600hz sound generator to a 1.0-m-long rop, what are the highest and lowest frequencies heard by a student in the classs room
A ball of mass m=0.5 kg and radius r=0.02m is pushed against a spring of force constant 200N/m, What is the speed of the rolling ball when it leaves the spring
while john is traveling along an interstate highway he notices a 153 mile marker as he passes through town. later john
at a junction in an a-c circuit a single current divides into two seperate currents I1=10,, I2=5, where I1 lags I2 by 30, use comlex numbers to represent currents.
A normal electric power cord consists of two parallel conductors about 4 mm apart. Estimate the magnetic field strength (in N/C) about 30 cm from a linear 25 m power cord connected to a 100 W lamp
A series RLC circuit consists of a 100 ? resistor, a 0.190H inductor, and a 42.0 ?F capacitor. It is attached to a 120 V/60 Hz power line. What is the average power loss
A 87 g arrow is fired from a bow whose string exerts an average force of 105 N on the arrow over a distance of 76 cm. Illustrate what is the speed of the arrow as it leaves the bow?
After a plant or animal dies, its 14C content decreases with a half-life of 5730 years. If an archaeologist finds an ancient firepit containing partially consumed firewood, what is the age of the ancient site
A 50 gram ball enters a a pendulum with mass 200 g. The pair then swings up to a height of 14.5 cm. Find the initial velocity of the ball before the collision
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