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a 70kg person stands on a diving board 4m long. the boards mass is 25kg and is bolted to two supports. one at the far end of the board and the other at S=1.2m from the far end. calculate the force on the board at each of the supports?
Determine the mass of a 4.6 meter beam, if it is balanced on a fulcrum 2.16 meters from the left end. A 820 N man stands on the very left end
Calculate the wavelength ?1 for gamma rays of frequency f1 = 6.40×10^-14 Now express this gamma-ray wavelength in nanometers
Two 2.0 cm x 2.0 cm square electrodes, spaced 0.4 mm apart, are connected to a 10 V battery. What is the charge on each electrode
A ball of mass 0.440 kg moving east (+x direction) with a speed of 3.80 m/s collides head-on with a 0.580 kg ball at rest. what will be the speed and direction of each ball
A tiny 0.0250 -microgram oil drop containing 15 excess electrons is suspended between to horizontally closely-spaced metal plates, Which plate must be positive, the upper one or the lower one
A 1500 kg car increases its speed from 15 m/s to 18 m/s in 15 seconds. What is the resultant work done on the car
Water flows at a speed of 1.7 m/s throughout a horizontal pipe having a circular cross section 5 cm in diameter. The pipe widens to a diameter of 14 cm. Treat the water as an idea fluid.
A softball having a mass of 0.255 kg is pitched at 92.3 km/hr. By the time it reaches the plate, estimate the average force of air resistance during a pitch
If 11.6 g of gold is deposited on the negative electrode of an electrolytic cell in a period of 3.03 hours, then what is the current through the cell during this period
Whats the coefficient of the kinetic friction of the tire. What is the acceleration of the car.
What is the resultant velocity of the lightning bug. find the force provided by the cable.
A person whose near-point distance is 52cm wears a pair of glasses that are 2.2cm from her eyes. Find the refractive power of her glasses
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