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A ship sails from seawater (specific gravity 1.025) into freshwater and therefore sinks slightly. When its load of 590,000 kg is removed, it returns to its original level. Assuming that the sides of the ship are vertical at the water line, find the combined mass of the ship and cargo before it was unloaded.
An electron enters a region where the electric field is uniform, directed vertically downward, and has a magnitude of 700 N/C. This region of uniform field is 1. 5 cm long and 0. 7 cm high. Find the magnitude of the vertical deflection of the elect..
Two particles of masses m and 3m are moving toward each other along the x-axis with the same speed v. Determine the final speed of the heavier object
a distant quasar is found to be moving away from the earth at 0.8 c. a galaxy closer to the earth, What is the recessional speed of the quasar
A 135 mCi radioactive tracer is made in a nuclear reactor. When it is delivered to a hospital 18 hours later its activity is 85 mCi. The lowest usable level of activity is 10 mCi. What is the tracer's half-life
q1. the flywheel of an engine has a moment of inertia 2.20 rm kg cdot rm m2 about its rotation axis. what is its final
q1. an airplane has a mass of 20000 kg and takes off under the control of a constant net force of 30000 n. what is the
A rock is thrown upward from the level ground in such a way that the maximum height of its flight is equal to its horizontal range R. At what angle is the rock thrown
A farsighted person has a near point of 50-cm from her eyes. She wants glasses that would let her see objects at a distance of only 25.00 cm from her eyes. Determine out the focal length of the glasses needed if the glasses are 2 cm and 3 cm from ..
In the figure below, the converging lens' focal length is 13 cm, d = 18 cm, and the diverging lens' focal length is -12.6 cm, How tall is the image formed by the diverging lens
A car travels 90 m due north in 15 seconds. Then the car turns around and travels 40 m due south in 5 seconds. what is the magnitude of the average velocity of the car
question1water moves through a constricted pipe in steady ideal flow. at one point where the pressure is 2.70 104 pa
A person of mass 72-kg stands at the center of a rotating merry-go-round platform of radius 2.80 m and moment of inertia 930 kgcdot m^2. The platform rotates without friction with angular velocity 2rad/s. The person walks radially to the edge of t..
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