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A man drags a 78.0-kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. The crate is tilted 26.5° above the horizontal, and the strap is inclined 56.5° above the horizontal. The center of gravity of the crate coincides with its geometrical center. Find the magnitude of the tension in the strap. Crate is .9m long by 04m high.
A 0.69 book slides on a horizontal table. The kinetic friction force on the book has magnitude 1.2. How much work is done on the book by friction during a displacement of 2.7 to the left
A stone is tied to a string (length = 0.750 m) and whirled in a circle at the same constant speed in two different ways. Determine the speed of the stone
Consider a neutron star whose mass is twice the mass of the Sun and whose radius is 14.1 km. What is the radius of the geostationary orbit for this neutron star
A small airplane has a mass of 2500 kg and is flying at a speed of 100. m/s at a height of 340 m above the ground. Determine the kinematic energy of the airplane while it is flying
Determine the capacitance of a Teflon-filled parallel-plate capacitor having a plate area of 1.50 cm2 and insulation thickness of 0.0700 mm
In the deep ocean, a water wave with wavelength 95 m travels at 12 m/s. What will be the vertical position of the boat 5.0 s later
A "Carnot" refrigerator (reverse of a Carnot engine) absorbs heat from the freezer compartment at a temperature of -17°C, How much work must be done by the refrigerator to change 0.20 kg of water at 24°C into ice at -17°C
A 76 W light bulb with a resistance of 178 ? is connected to a power supply with a 117 V. What is the internal resistance of the power supply
Sound is passing perpendicularly through an open window whose dimensions are 1.1 m x 0.75 m. How much sound energy comes through the window in one hour
The quantity of charge q (in coulombs) that has passed through a surface of area 1.90 cm2 varies with time according to the equation q = 8t3 + 8t + 6, What is the value of the current density
q1. gamma-ray busters are objects in the universe that emit pulses of gamma rays with high energies. the frequency of
A muon with rest energy 106 MeV is created at an altitude of 4600 m and travels downward toward Earth's surface. What is the muon's total energy in the muon's frame of reference
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