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A small block of mass m = 140 g is released from rest at point along the horizontal diameter on the inside of a frictionless, hemispherical bowl of radius R = 28.0 cm as shown in the figure below. the height = 2R/3 = c (d) Calculate its kinetic energy when the block is at point (e) Calculate the potential energy when the block is at point.
A typical American family uses 700 kWh of electricity a month. On average, what is the resistance of a household
compute the distance x the spring was compressed.
Some skin divers go as deep as 50 m. What is the gage pressure at this depth in fresh water, and what is the ratio of absolute pressure at this depth to normal atmospheric pressure.
A current of 15.0 mA is maintained in a single circular loop of 2.40 m circumference. A magnetic field of 0.870 T is directed parallel to the plane of the loop. Calculate the magnetic moment of the loop
The power supply for a pulsed nitrogen laser has a 0.0050-mF capacitor with a maximum voltage rating of 30 kV, calculate the power of the laser pulse
A cometary nucleus rotates rapidly and has an albedo A=0.05. When its surface temperature reaches T?150K, How far is the cometary nucleus from the Sun
Laser light of wavelength 6.30x10^2 nm is incident upon two narrow slits separated by 0.17 mm. how far apart are the interference fringes
A loudspeaker of mass 23-{rm kg} is suspended a distance of h = 1.80- {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.10- {rm m}. What is the tension T in each of cables.
A straight 2.06 -mm-diameter copper wire can just 'float' horizontally in air because of the force of the Earth's magnetic field B, What current I does the wire carry
Josh starts his sled at the top of a 3.3m -high hill that has a constant slope of 25 ^\circ. How far from the base of the hill does he end up
A typical coal-fired power plant burns 320 metric tons of coal every hour to generate 700 of electricity. What is the power plant's thermal efficiency
A car is traveling at 47.0 km/h on a flat highway. what is the minimum distance in which the car will stop
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