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An elevator is able to raise 9,800 N to a height of 38 m in 14 s.
In a photoelectric-effect experiment, the maximum kinetic energy of electrons is 3.2eV . When the wavelength of the light is increased by 50% , What is the work function of the cathode
Select True or False for each of the following statements regarding magnetism, and the earth's magnetic field "B."
question at 10 ft. the total pressure on the diver will be 1.3 atm. assuming the diver took a deep breath 6.0l in her
It takes the Earth 24 hours to make a complete rotation around its axis. What is the angular velocity of the Earth in rad/s
A wheel is rotating about an axis that is in the z-direction. The angular velocity is at , increases linearly with time and is at . We have taken counterclockwise rotation to be positive.
A not so brilliant physics student wants to jump from their third floor apartment window to the swimming pool below. obtain how fast does the student have to be running horizontally to make sure they make it to the pool's edge
A 15-lb uniform cylinder can roll without sliding on an incline and is attached to a spring AB as shown. If the center of the cylinder is moved 0.4 in. down the incline and released,
A person pushes a 14.0 kilogram lawn mower at constant speed with a force of 85.0 Newton directed along the handle, which is at an angle of θ= 47.0 degree to the horizontal. Determine the force the person must exert on the lawn mower
What is the inductance L? How long after the switch is closed does the current have the value 0.52 A? What is the maximum current that flows in this circuit?
Coherent light with wavelength 591nm passes through two very narrow slits, and the interference pattern is observed on a screen a distance of 3m from the slits. The first-order bright fringe is a distance of 4.84mm from the center of the central b..
the flash unit in a camera uses a 2 battery to charge a capacitor. the capacitor is then discharged through a
The mass of robot is 5450 kilogram. This robot weighs 3620 Newton mass on planet A than it does on planet B. Find the magnitude of the net force acting on the kayak
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