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A 5.7 kg quantity of water is held at constant volume in a pressure cooker and heated with a range element. The systems internal energy increases by 37x10^3 J. But, the pressure cooker is not well insulated, and 6x10^3 J of energy is transferred to the surrounding air. How much energy is transferred from the range element to the pressure cooker as heat? Answer in units of J
a large boulder is ejected vertically upward from a volcano with an initial speed of 40.7 ms. air resistance may be
One end of a string 7.8 meter long is moved up and down with simple harmonic motion at a frequency of 72.0 Hertz. Obtain the wavelength of the waves on the string
question two large parallel plates are separated by 0.90cm and carry uniform charge densities equal in magnitude and
the supersonic aircraft concorde has a length of 61.5m when sitting on th ground on a typical day when the temperature is 15.0 degrees C. what is the temperature of the concordes skin in flight
A swing is made from a rope that will tolerate a maximum tension of7.0 102 N without breaking. What is the mass of the heaviest person who can ride the swing
For 140 keV gamma rays, the mass attenuation coefficients for hydrogen and oxygen are 0.26 and 0.14 cm^2/g, respectively. What is the mean free path in water at this energy
Scientists are experimenting with a kind of gun that may eventually be used to fire payloads directly into orbit. How much time is required for the projectile to come up to speed
A runner is running the first heat of a100 m race at a velocity of 6.9 m/s in an easterly direction. What is the relative velocity of the runner to the wind
a 950kg compact car is moving with the velocity v132x 17yms. it skids on an icy frictionless patch and collides with a
An object is moving so that its kinetic energy is 139 Joule and the magnitude of its momentum is 41.1 kg•m/s. Evaluate what is the speed of the object
A 47 kg skier starts from rest at height H = 19 m above the end of a ski-jump ramp as shown. as theskier leaves the ramp, his velocity makes an angle theta= 29 above the horizontal. neglect air resistance and friction. calculate the speed of the s..
A car moves from a point located 26.0 m from the origin and at an angle of 35.0 from the x-axis to the point located 57.0 m from the origin and at an angle of 60.0 from the x-axis in 2.52 s.
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