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The net force acting on a 6.0-kg object is given by Fx = (10- x) N, where Fx is in newtons and x is in meters. How much work is done on the object as it moves from x =0 to x=10m ?
A rock is tossed straight up with a speed of 24 m/s. When it returns, it falls into a hole 13 m deep. find the rock's velocity as it hits the bottom of the hole
An Argon ion laser has a gain bandwidth of 2 GHz. Find the number of standing wave cavity modes within the gain bandwidth of the argon ion laser
The rms speed of the molecules in 1.5g of hydrogen gas is 1800m/s . A:What is the total translational kinetic energy of the gas molecules, what is the rms speed of the molecules
The second orbit for the only electron in a He+ ion has a radius of 5.29 X 10^-11 m. What is the speed of an electron in that orbit
question1a small plastic sphere of mass m 137 g is attached to a string.there is an electric field of 174 nc directed
A student holds a tuning fork oscillating at 260 Hz. He walks towards a wall at a constant speed of 1.16 m/s. How fast must he walk away from the wall to observe a beat frequency of 4.50 Hz
When the Voyager I and Voyager II spacecraft were exploring the outer planets, NASA flight controllers had to plan the crafts' moves well in advance.How many seconds elapse between the time a command is sent from Earth and the time the command is ..
An 79-kg stuntman jumps from a window of a building situated 33 m above a catching net. Assuming that air resistance exerts a 100-N force on the stuntman as he falls, identify his velocity just before he hits the net.
A car with 66 -diameter tires accelerates uniformly from rest to 20 in 20 . How many times does each tire rotate
It's possible to estimate the percentage of fat in the body by measuring the resistance of the upper leg rather than the upper arm; the calculation is similar. A person's leg measures 39 cm between the knee and the hip, with an average leg diamete..
A diving board of length 3.00m is supported at a point 1m from the end, and a diver weighing 520 m stands at the free end . The diving board is of uniform cross section and weighs 270m.
An 18 g rifle bullet traveling 200 m/s buries itself in a 3.5 kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Determine the vertical and horizontal components of the pendulum's displacement. vertical m hor..
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