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A juniper-wood plank measuring 0.19 feet by 1 feet by 18 feet is totally submerged in water.
(a) Evaluate what is its weight?
(b) Obtain the buoyant force acting on it?
(c) Determine the size and the direction of the net force on it?
A 80 kg block is pulled at a constant speed of 8.3 m/s across a horizontal floor by an applied force of 120 N directed 37° above the horizontal. What is the rate at which the force does work on the block
Three light bulbs each with a resistance of 50W, are connected in series to a 100 V power supply, find the current flowing through the third light bulb
What is the magnitude of the accelerations of the masses, What is the magnitude of the accelerations of the masses
A current of 18 Ampere runs through the Parallel Wire Apparatus. What is the anticipated mass (in milligrams) for balancing the frame-balance
We have a container of a hot ideal monatomic gas. The volume of the container is 25 liters. determine the change of internal energy of the gas
A transparent material has indices of refraction given by: n(violet) = 1.6231 n(red) = 1.6111 Determine the angular spread of these two colors
You are designing a delivery ramp for crates containing exercise equipment. The crates of weight 1470N will move with speed 2.2m/s at the top of a ramp that slopes downward at an angle 25.0degrees.
A wooden plank is raised at one end to an angle of 30 degree. A 2.0 kilogram box is located on the incline1.0 meter from the lower end and given a slight tap to overcome static friction. Calculate the speed of the box at the bottom
an electric motor rotating a workshop grinding wheel at a rate of 9.80 x 101 revmin is switched off. assume the wheel
A brand of earplugs reduces the sound intensity level by 28dB. By what factor do these earplugs reduce the acoustic intensity
a certain mass m1 of ice initially at -5 c is placed into a perfectly isolated container along with a certain mass m2
a stone thrown horizontally from the top of a 19-m tower hits the ground at a point 18 m from the base of the tower.
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