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Consider two displacements, one of magnitude 2.5 m and another of magnitude 4.1 m. What angle between the directions of this two displacements give a resultant displacement of magnitude (a) 5.7 m, (b) 2.6 m, and (c) 3.4 m.
A 51.0 kg woman balances on one heel of a pair of high-heeled shoes. If the heel is circular and has a radius of 0.400 cm, what pressure does she exert on the floor
A capacitor consists of a set of two parallel plates of area A separated by a distance d. find the magnitude of the charge on the plates
A carpenter is driving a nail into a board. The 1.25 kg hammer moves at 8.85 m/s when it strikes the nail. What is the change in length of the nail
A uniform rope of mass m and length L hangs from a ceiling. (a) Show that the speed of a transverse wave on the rope is a function of y, the distance from the lower end, and is given by v = √(gy). (b) Show that the time a transverse wave takes to tr..
A moving particle encounters an external electric field that decerases its kinetic enegery from 9420 eV to 8580 eV as the particle moves from position A to position B. Determine the charge of the particle
Over a year's time, a person receives a biologically equivalent dose of 24 mrem (millirems) from cosmic rays, What is the person's absorbed dose in rads
The best leaper in the animal kingdom is the puma, which can jump to a height of 3.7 m when leaving the ground at an angle of 45°. With what speed must the animal leave the ground
When resting, a person has a metabolic rate of about 6.16 x 105 joules per hour. The person is submerged neck-deep into a tub containing 2.51 x 103 kg of water at 24.3 °C. If the heat from the person goes only into the water, find the water temper..
An evacuated spherical diving bell containing a camera is in the ocean at a depth of 143m. It has a flat, transparent, Find the magnitude of the total force on the port
a light bulb is rated at 60w 120 v. what is a the resistance of the bulb? b the current through the bulb when
Two hockey players strike a puck of mass 0.164 kg with their sticks simultaneously, exerting forces of 1.24 103 N, Find the instantaneous acceleration of the puck
Illustratr what is the amplitude of the oscillations? What were the (b) position and (c) velocity of the block at t = 0 s?
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