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A baseball of mass 145 gram leaves the pitcher´s hand at 96.6 mi/h, but due to air resistance, it arrives at home plate 60.0 feet away traveling at 95.3 mi/h. Suppose that the magnitude of the balls acceleration is constant and that the ball travels a straight line(neglect gravity). Obtain how much work is done by friction during the flight of ball?
A stone of weight W has specific gravity 2.51. When the stone is suspended from a scale and submerged in water, what is the scale reading in terms of its weight in air
A circuit consists of a battery connected to three resistors (65?, 26?, and 170?) in parallel. find the current through each resistor
Determine how many times greater heat loss occurs through a glass window thats 80.0 cm high, 70 cm wide, and 0.300 cm thick (k = 0.791 W/m°C) than a electrical supply line running outside to an exterior mounted light.
The magnetic field inside a superconducting solenoid is 4.1 T. The solenoid has an inner radius of 2.2 cm and a length of 29.0 cm. Find the magnetic energy density inside the solenoid
In a science fiction novel , a starship takes 3 days to travelbetween two distant space stations according to its own clocks. How fast did the starship travel, relative to the spacestation
a person moves a full sam's club shopping cart mass=80.0 kg from rest to a velocity of 1.30 m/s over a distance of 1.80 meters to secure a spot in check out line. Determine the change in the chart's momentum
If the shortest wavelength produced by an x-ray tube is 0.441 nm, what is the voltage applied to the tube
An RLC circuit has a sinusoidal voltage supplied to it at 158 kHz with a peak voltage of 172 V; a 45 k? resistance; What is the peak current for this circuit
The cube in fig 22.32 has sides of length L=10.0cm. The electric field is uniform, has magnitude E=4.00*10^3 N/C, find the total electric flux through all faces of the cube
A patient recovering from surgery is being given fluid intravenously. The fluid has a density of 1040 kg/m3, and 9.54 10-4 m3 of it flows into the patient every five hours. Find the mass flow rate in kg/s
Two metal spheres, each of mass 14 g and initially at rest, are dropped from a height of 6 m in an evacuated chamber. Find the difference in final speeds of the two spheres
if the proton proton chain is the only nuclear reaction that happens in a star what is the total number of hydrogen
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