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An athlete needs to lose weight and decides to do it by "pumping iron."
(a) How many times must an 54.0 kg weight be lifted a distance of 0.930 m in order to burn off 1.00 lb of fat, assuming that that much fat is equivalent to 3500 kcal?
(b) If the weight is lifted once every 1.90 s, how long does the task take (in hours)?
92X235 absorbs a thermal neutron and fissions into: 37Y93 and 55Z141. What nucleons are produced by the fission
At time t1 = 16 s, a car with mass 1100 kg is located at m and has momentum kg · m/s. what is the position of the car
A container has a pressure of 4 atmospheres and is at the temperature of 200 degrees celsius, what is the average distance between molecules (assume container is a cube)
Two ice skaters, with masses of 50.0 kg and 85.0 kg, are at the center of a 60.0 m-diameter circular rink. how long does the lighter skater take to reach the edge
Three dogs are pulling on a blanket in different directions. The English shepherd is pulling north with a force of 40 N. in what direction is the boxer pulling
The speed of a projectile when it reaches its maximum height is 0.39 times its speed when it is at half its maximum height
Transverse waves travel at 23.3 m/s on a string that is under a tension of 7.00 N. What tension is required for a wave speed of 33.3 m/s in the string
What is a unique characteristic of water between 0 and 4 degrees celcius - Need a question pertaining to heat and temperature dealing of course in physics.
An ideal massless spring is hanging vertically. When a 0.45-kg mass is attached to the spring, What is the frequency of the resulting oscillation
Light at two different wavelengths, 750nm and 450nm, is shone through the same single slit at the same time. Determine the slit's width
what is the minimum coefficient of static friction required between tires and race track if the car is to stay on the track at a speed of 130m/s.
A spectral line from the left side of Saturn's rings, as you see them, Which way (direction) is Saturn rotating, and why
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