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A rock climber of mass 55 kg is hanging suspended from a rope tied to another climber ofmass 65 kg on a horizontal cliff ledge. If the coefficient of kinetic friction between the climber on the ledge and the ledge is 0.45, what is the net acceleration of the climber onthe ledge?
An alpha particle with kinetic energy 17 MeV makes a head-on collision with a lead nucleus at rest. What is the distance of closest approach of two particles.
Trucks with the noted masses moving at the noted speeds crash into barriers that bring them to rest with a constant force
The force on a particle is directed along an x axis and given by F = 0.97(x/4.6 - 0.52) where x is in meters and F is in Newtons. Find out the work done by the force in moving the particle from x = 0 to x = 8.9 m.
It is determined by immersing a crown in water that its volume is 26inc^3=4.2x10^-4m^3. What would its weight be if it were made of pure gold
Two solenoids are used to produce a magnetic field across a cathode-ray tube. Find the field at the center of the CRT
One recent study has shown that x rays with a wavelength of 0.0034 nm can produce mutations in human cells. (a) Calculate the energy in eV of a photon of radiation with this wavelength. eV (b) Assuming that the bond energy holding together a water mo..
The electron gun in a traditional television tube fires electronsof kinetic energy 25 keV at the screen in a circular beam 0.22 mmin diameter; 5.6 multiplied by 1014 electrons arrive eachsecond. Calculate the magnitude of the magnetic field produc..
A car is traveling along a straight road at a velocity of +39.0 m/s when its engine cuts out. For the next ten seconds the car slows down, Find the velocity of the car at the end of the initial ten-second interval
A two-slit interference experiment is set up, and the fringes are displayed on a screen. How does the fringe pattern change
You pull your 55.00 kg friend on a 5.00 kg sled across a patch of snow. You pull using a 48-N force on a rope that makes a 35 degree angle with the horizontal. If the friction force between the sled and the snow is a mere 5-N what is the normal fo..
What is its velocity at impact? What will its average velocity be? What will its average speed be.
The maximum strength of the earth's magnetic field is about 6.9 x 10-5 T near the south magnetic pole. What is the minimum number of turns (area per turn = 0.021 m2) that the coil must have to produce an rms voltage of 170 V
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