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A man standing at the peak of Mount Everest tries to jump the 8,820m high mountain. If he screams at the time of his jump, how long is he screaming until he lands on the foot of the mountain? [Assume acceleration due to gravity= 10.0 m/s^2 and neglect friction.]
A baseball (mass = 145 gram) is thrown straight upward with kinetic energy 4.35 Joule. Determine the ball kinetic energy
X rays of wavelength 0.0196 nm are directed in the positive direction of an x axis onto a target containing loosely bound electrons. determine the corresponding change in photon energy
a liquid of unknown specific heat at temperature 20c was mixed with water at 80c in a container.final temperature was
While a roofer is working on a roof that slants at 39.0 degrees above the horizontal, he accidentally nudges his 93.0 N toolbox, causing it to start sliding downward, starting from rest.
A thin uniform rod (mass = 0.75 kg) swings about an axis that passes through one end of the rod and is perpendicular to the plane of the swing. What is the maximum kinetic energy of the rod as it swings
An isolated conducting sphere has a 9cm radius. One wire carries a current of 1.000 002 0 A into it.Another wire carries a current of 1.000 000 0 A out of it. How longwould it take for the sphere to increase in potential by800 V?
Derive a formula, similar to equation 5.90 which was T-Tnot = (nB*k*Tnot^2)/L for the shift in the freezing temperature of a dilute soution. calculate the freezing temperature of seawater
a 10 gram ice cube at 10 degree celsius is dropped into 40 grams of water at 30 degree celsius. after the two come into
Determine the rms current in an RC circuit if R=8.80 kΩ, C=1.80 μF and the rms applied voltage is 112 Volt at 59 Hertz
A 2.0 kilogram block is at rest on a horizontal table given the coefficients of friction between the block and the table: μs = 0.34 and μk=0.29; evaluate what horizontal force is needed to cause the block to move
A lumberjack (mass = 98 kg) is standing at rest on one end of afloating log (mass = 290 kg)that is also at rest. The lumberjack runs to the other end of thelog, attaining a velocity of +3.5 m/s relative to theshore, and then hops onto an identical..
A proton is at the origin and an electron is at the point = 0.45 , = 0.31 . Find the electric force on the proton.
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