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after enough time has passed to allow the ice cube and water to come to equilibium,
a) what is the tempreture of the water? (answer should be T = 7 celsius)
b) if a second ice cube is added what will the tempreture be?
A 310 kg weather rocket is loaded with 100 kg of fuel and fired straight up. It accelerates upward at 28.0 m/s2 for 32.0 s, and then runs out of fuel. Overlook any air resistance effects.
A rod 89 cm long moves in a plane perpendicular to a magnetic field of 510. G. The velocity of the rod is perpendicular to its length. Find the speed of the rod
Luigi wishes to suspend a lantern of mass m between his store and a telephone pole. THe cable attached to his store makes an angle (theta) to the wall. The cable to the telephone pole is horizontal.
A bomb at rest at the origin of an xy-coordinate system explodes into three pieces. Just after the explosion, one piece, of mass 2.0 kg, what is the magnitude of the velocity of the third piece
Oxygen has a molar mass of 32.0g/mol. What is the root-mean-square speed of an oxygen molecule at a temperature of 298K
A motorist inflates the tires of her car to a pressure of 170 kPa on a day when the temperature is -8.0°C. What is the temperature of the tires
You have a mass of 77 kg and are on a 43 degree slope hanging on to a cord with a breaking strength of 209 newtons. What must be the coefficient of static friction to 2 decimal places between you and the surface for you to be saved from the fire..
An object of mass b has a speed that changes with distance d according to v = bx^-n. What is the force as a function of d? What is the position as a function of time d(t=0)=d(initial).
Force F = (-9.0 N) i + (5.0 N) j acts on a particle with position vector r = (-5.0 m) j + (1.0 m) k. What is the torque on the particle about the origin
The adiabatic, aergonic throttling calorimeter is a device by which the quality of wet steam flowing in a pipe may be determined. Determine (a) the enthalpy of the steam in the pipe
When rebuilding her car's engine, a physics major must exert 450 N of force to insert a dry steel piston into a steel cylinder at a constant velocity. What is the normal force between the piston and cylinder
An electron of mass 9.11×10?31kg leaves one end of a TV picture tube with zero initial speed and travels in a straight line to the accelerating grid, Find the net force. (You can ignore the gravitational force on the electron)
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