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A 20 kg wood ball hangs from a 2.0 meter long wire. The maximum tension the wire can withstand without breaking is 400 N. A 1.0 kg projectile traveling horizontally hits and embeds itself in the wood ball. What is the largest speed this projectile can have without causing the cable to break?
A block with a weight of 7.7 N is at rest on a horizontal surface. What is the magnitude of the force of the block on the horizontal surface
The position of a particle moving along the x axis is given in centimeters by x = 9.75 + 3.50t 3, where t is in seconds. Calculate the average velocity
A 72.0-kg log falls from a height of 27.0 m into a lake. If the log, the lake, and the air are all at 305 K, find the change in entropy of the air during this process
A person pulls a 26kg suitcase using a rope attached to the suitcase at an angle of 28 degrees to the horizontal. The coefficient of static friction of the suitcase with the floor is 0.3 and the coefficient of kinetic friction is 0.20.
a power transmission line feeds input power at 2300 v to a stepdown transformer with its primary windings having 4000
It is 156 cm from your eyes to your toes. You're standing 212 cm in front of a tall mirror. How far is it from your eyes to the image of your toes
find the work that must be done to increase the speed of the particle of mass 1kg from 2ms to 6ms over the distance of
Your new super power Heat-O-Matic insulated blender has both a violent chopping blade and a heating element, what amount of heat flowed into the water from the heating element
A drug prepared for a patient is tagged with which has a half life of 6.05 h and an activity of 1.60 µCi when it was prepared. What is its activity at the time it is injected
If the electron drops back to the ground state, will a photon be emitted? If yes, what would be the energy or wavelength of the emitted photon compared to that of the absorbed photon?
A flywheel turns through 26 rev as it slows from an angular speed of 1.3 rad/s to a stop. What is its angular acceleration
Future space stations will create an artificial gravity by rotating. Consider a cylindrical space station of 380 m diameter rotating about its axis, how much gravity would they experience
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