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An 8.70-kg block slides with an initial speed of 1.80 m/s down a ramp inclined at an angle of 22.2 deg with the horizontal. The coefficient of kinetic friction between the block and the ramp is 0.64.
Use energy conservation to find the distance the block slides before coming to rest?
A circuit containing a 5.5 H inductor has an alternating current supplied to it. If Irms is 5.1 A and Vp is 76 V, find the frequency of the signal
A heat engine in each cycle extracts 50,000 Btu of thermal energy and rejects (or releases) 20,000 BtU of thermal energy. How many Btu of work is done each cycle
A river ?ows at a speed vr = 5.85 km/hr with respect to the shoreline. A boat needs to go perpendicular to the shoreline to reach a pier on the river's other side, determine the width of the river
Two charges are separated by some distance and the magnitude of the electric force between them is 224.6 Newtons. If the distance between the same two charges is tripled, what is the magnitude of the electric force on them now in Newtons?
Two manufactures of fiber optic material are in competition. ZipCo offers a fiber with a loss coefficient of 2.9E-3/m, Which company has the best offer
sketch a scaled ray diagram and show the location of the iamge using 3 principle rays, calculate the magnification of the object
from the scattering of sunlight, J. J. Thomson calculated the classical radius of an electron as having the value 2.82 ×10-15 m. Sunlight with an intensity of 500 W/m2 falls on a disk with this radius.
A golf ball is a struck with a club. The force in the ball varies from zero when contact is made up to maximum value, What is the mass of the golf ball
Approximately how many atoms make up our planet? For simplicity, suppose the average atomic mass of the atoms is 14 . Avogadro's number gives the number of atoms in a mole.
A ball dropped from a height of 4.00 m makes an elastic collision with the ground. Assuming no mechanical energy is lost due to air resistance, a) show that the ensuing motion is periodic, b) find the period of the motion.
A vertically hanging steel wire has the following properties. Length=8.75m, Cross-Sectional area= 0.375 cm cubed. Y=2.10x10^11 Pa, B=1.62x10^11 Pa, S= 0.871x10^11 Pa, Proportional Limit=3.27x10^8 Pa, breaking stress=17.4x10^8 Pa.
You want to produce a magnetic field of magnitude 5.50×10?4T at a distance of 4.00×10?2m from a long, straight wire. What current is required to produce this field
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