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a proton is moving in a circular path with a radius of 8.28 cm and is moving perpendicular to a magnetic field of 57.9 mT.
A. how fast is the proton moving and
B. what is the kinetic energy of the proton?
The stairs are 83 long and inclined at the angle of 31. If a player has a mass of 87, estimate his average power output on the way up. Overlook friction and air resistance.
What is magnitude of the greatest force
A styrofoam cooler (k = 0.030 W/(m·K)) has outside dimensions of 0.270 m by 0.230 m by 0.280 m, and an average thickness of 2.6 cm. About how long would it take for 1.60 kg of ice at 0 °C to melt in the cooler if the outside temperature is 30.0 °C..
The springs of a 1300 {rm kg} car compress 6.0 {rm mm} when its 62 {rm kg} driver gets into the driver's seat. If the car goes over a bump, what would be the frequency of vibrations.
Suppose you throw a rock from an initial height h0 at a speed v0 and angle ? from the horizontal. Neglect drag or friction, Determine the coordinate system and draw a diagram of the trajectory. Draw the free-body diagram and find the net force
Four charges are placed at the vertices of a square, centered at the origin. If each side of the square has a length of 0.224 m, what is the strength and direction of net electric field at the origin? Express your answer in terms of the charge ma..
A ‘U' shaped pipe contains a liquid that is sealed at both ends by pistons. Determine the downward force
The mass of mars is 6.419 times 10 26 square kg and the mass of a single proton is 1.673 times 10 negative 27 square kg. assuming mars is made entirely of protons, how various protons would make up mars.
A 0.38 kg iron horseshoe that is initially at 580°C is dropped into a bucket containing 21.8kg of water at 21 °C. What is the final equilibrium temperature (in °C)? Avoid any heat transfer to or from the surroundings. Do not enter units.
A bullet is fired from ground level with a speed of 150 m/s at an angle of 30 degrees above the horizontal. What is the velocity of the bullet while it is at the highest point of its trajectory.
A barefoot field-goal kicker imparts a speed of 26 m/s to a football at first at rest. If the football has a mass of 0.24 kg and the If the football has the mass of 0.24 kg and the time of contact with the ball is 0.037 s, what is the force exerte..
A resistor is connected across the terminals of a 9 V battery, which delivers 1.27E+5 J of energy to the resistor in 8.00 hours
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