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A 65kg ice skater standing on frictionless ice throws a .15 kg snowball horizontally at a speed of 32m/s. At what velocity does the ice skater move backwards?
What is the total emitted power and the net power loss due to radiation of a human body with a surface temperature of 36 degree C? Assume that the surface area of the body is 1.5m2 and the temperature of the surroundings is 20 degree C.
Two cars of collide in a glancing collision and stick together. Before the colli- sion the first car (mass of 500 kg) is moving with velocity 25 m/s at an angle of 30%u25E6 North of East, Determine the momentum of each car in a suitable Cartesian c..
A hockey player strikes a 166 g puck, accelerating it from rest to 48 m/s. If the hockey stick is in contact with the puck for 2.5 ms, what is the average force applied by the stick
An unstrained horizontal spring has a length of 0.34 m and a spring constant of 240 N/m. Two small charged objects are attached to this spring, one at each end. The charges on the objects have equal magnitudes. Because of these charges, the spring..
a -N block hangs from the second spring. A block of unknown weight hangs from the third spring. find the weight of the block hanging from the third spring
A force F = 4.2 Ni + 3.7 Nj + 1.2 Nk acts on a particle located at x = 3.3 m. What is the torque on the particle around the origin
Pierre Curie discovered through experiment that the magnetization of a paramagnetic material is directly proportional to the strength of an external magnetic field and inversely proportional to the temperature in degrees Kelvin
A 3-microFarad capacitor is connected in series with a 2 micro-Farad capacitor, and a 1.5 volt battery. What is the voltage across the 3-microfarad capacitor?
a 40 x 10^3 kg train is travelling at 8.3m/s when the engineer sees a sheep on the tracks. she throws the emergenxy brakes on. How long is it before the rain will come to a complete stop
An astronomer observes electromagnetic waves emitted by oxygenatoms in a distant galaxy that have a frequency of 5.710x10^14 Hz. Determine the relative velocity of thegalaxy
An ideal transformer has 890 turns in its primary coil and 150 turns in its secondary coil. What is the output voltage of the secondary coil
A bird watcher meanders through the woods, walking 1.78 km due east, 1.03 km due south, obtain the magnitudes of the bird watchers displacement
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