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A model car is propelled by a cylinder of carbon dioxide gas. The cylinder emits gas at a rate of 4.5 grams/second with an exit speed of 80.0m/s. The car has a mass of 400 grams, including the CO2 cylinder. Starting from rest, what is the car's initial acceleration?
The rms speed of molecules in a gas at 35.0°C is to be increased by 1.8%. To what temperature should it be raised? What is the rms speed of nitrogen molecules contained in an 8.8 m3 volume at 1.4 atm if the total amount of nitrogen is 1300 mol?
two ants race across a table 52 cm long. one travels at 4.72 cms and the other at 3 cms. when the first one crosses the
A 5.00 kg box is pulled by a rope with a force of 25.0 N. Determine the acceleration of the boxes
Use the absolute derivative DA?/Du=dA?/du??(from ?? to ?)A? dx^?/du to prove that the inner (scalar) product of two vectors is preserved under parallel transport on a path if the connection defined on the manifold is a metric connection.
A coil is wrapped with 300 turns of wire on the perimeter of a circular frame (radius = 8.0 cm). Each turn has the same area, equal to that of the frame. A uniform magnetic field is turned on perpendicular to the plane of the coil.
A horse ran the Kentucky Derby with times of 25.2 s, 24.0 s, 23.8s, and 23.0 s for the quarter mile. Discover his average speed through each quarter-mile segment.
a little boy standing at the cliff 500 m high. He throws a ball straight upward at an initial speed of 20 m/s squared. At a time of 6 seconds after it was thrown, how far above ground is i
The bottom of a test tube is 9.07 cm from the spin axis of a centrifuge. What is the total acceleration when the angular speed is 8.00 rad/s and the angular acceleration is 95.0 rad/s2?
question1two vessels a and b each have n molecules of the same perfect monoatomic gas. firstly the two vessels are
Stephen Hawking has predicted the temperature of a black hole of mass M to be T Uc 3/8pkGM, where k is Boltzmann's constant. Calculate the temperature of a black hole with the mass of the sun. Discuss the implications of the temperature you calcul..
A person riding in the back of a pickup truck traveling at 70km/h on a straight, level road throws a ball with a speed of 20km/h relative to the truck in the direction of the truck's motion. What is the velocity of the ball relative to the driver
What force must be applied to 50 kg object to move it downward with acceleration 10 m/s^2 ? What is the direction of the applied force
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