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An 80.0 N box is pulled 19.0 m up a 30° incline by an applied force of 97 N that points upward, parallel to the incline. If the coefficient of kinetic friction between box and incline is 0.220, calculate the change in the kinetic energy of the box.
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In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.0682 s, determine the vertical components of the launch velocity.
An 84.6-kg climber is scaling the vertical wall of a mountain. His safety rope is made of nylon that, How much is the rope stretched when it breaks his fall and momentarily brings him to rest
A monatomic ideal gas expands adiabatically from an initial volume of 72 L, What is the final volume of the gas
A computer to be used in a satellite must be able to withstand accelerations of up to 23 times the acceleration due to gravity. What is the minimum amplitude of vibration that must be used in this test
A 100kg astronaut carrying a 1kg ball as she flies past a space station with a velocity of 3/5. what is her mass after throwing the ball
As shown in the figure, a square has sides of d = 5.0 cm with a charge of Q = -18.0 µC at one corner (a) and with charges of q = +6.0 µC, Find the electric field at the center of the square
A large tank of water is full and has a depth of 10.0 m. What is the pressure at the bottom of the tank? What would the velocity of the water be
A space vehicle is traveling at 3570 km/h relative to Earth when the exhausted rocket motor is disengaged, What is the speed (in km/h) of the command module relative to Earth just after the separation
Light of wavelength 655 nm is used to illuminate normally two glass plates 20 cm in length that touch at one end, How many bright fringes appear along the total length of the plates
Coherent light with wavelength 601 passes through two very narrow slits, and interference pattern is observed on a screen a distance of 3.00 from the slits.
Two 2.7cm -diameter disks face each other, 2.7mm apart. They are charged to ±14nC. What is the electric field strength between the disks
In classical electromagnetic theory, an accelerating charge e radiates energy at the rate W=(2/3)(a^2 e^2/c^3)ergs/s, what is the initial frequency of radiation that the atom emits
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