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The power supplied to a typical black-and-white television set is 94 W when the set is connected to 120 V. (a) How much electrical energy does this set consume in 1 hour? J (b) A color television set draws about 2.9 A when connected to 120 V. How much time is required for it to consume the same energy as the black-and-white model consumes in 1 hour?
An artillery shell is fired at an angle of 63.8 above the horizontal ground with an initial speed of 2000 m/s. Find the total time of flight of the shell
Initially, a 2.00-kg mass is whirling at the end of a string (in a circular path of radius 0.750 m) on a horizontal frictionless surface with a tangential speed of 5 m/s. What is the instantaneous speed of the mass at the moment the string reaches ..
A uniform plate of height 1.920 m is cut in the form of a parabolic section. The lower boundary of the plate is defined by: y = 1.000 x2. The plate has a mass of 1.17 kg.
A fire truck has a siren with that generates a sound with a frequency of 8562 Hz. what frequency will you observe
A mass M1 = 5 kg sits on a table top connected by an ideal rope and pulley with a hanging mass M2 = 1 kg. The coefficient of kinetic friction between the table and M1 is 0.15, and the coefficient of static friction is 0.25. What is the acceleration o..
A beam of nuclei is used for cancer therapy. Each nucleus has an energy of 181 MeV, How many nuclei are in the beam
a 150lb male athlete is running on a treadmill machine at a speed of 10mi/hr in a thermally insulated room. after one hour how much weight will the athlete lose
A moving particle encounters an external electric field thatdecreases its kinetic energy from 9820 eVto 7470 eV as the particle moves fromposition A to position B. The electric potentialat A is -51.0 V, and the electricpotential at B is +28.9 V.Deter..
A thin transparent film has an index of refraction of 1.57. It consists of a flat plate with air on both sides of the film. Determine the minimum thickness of the plate
A ball, initially at y = 0, is thrown straight down and takes 1.40 s to move 13.8 m in the - y direction. Calculate the initial velocity of the ball
Calculate the momentum of a 17m^3 of air (density of 1.3kg/m^3) hitting a sky diver traveling 52 m/s
A man enters a tall tower, needing to know its height. He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 24.0 s. How tall is the tower
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