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Two protons approach each other by different speeds. (a) Will the magnitude of the total momentum of the two-proton system be (1) greater than the magnitude of the momentum of either proton, (2) Equal to the dissimilarity between the magnitudes of momenta of the two protons, or (3) equal to the sum of the magnitudes of momenta of the two protons? Why? (B) If the speeds of the two protons are 340 m/s and 450 m/s, correspondingly, what is the total momentum of the two-proton system?
A student standing on a stationary skateboard tosses a textbook with a mass of mb = 1.25 kg to a friend standing in front of him. Calculate for the magnitude of the velocity of the student
An automobile battery has an emf of 12.2 V and an internal resistance of 0.088 omegacap.gif. What is the potential difference across the headlight bulbs when they are the only load on the battery
A meterstick is moving by an observer in a direction parallel to its length. The speed of the meterstick is .49c. What is its length in the reference frame of the observer
as a helicopter carrying a crate takes off its vertical position as well as the crates is given as yt at3 where a is a
A current with sinusoidal time-dependence, whose peak value is 5.55 A and frequency is 775 cycles per second, Calculate the average power dissipated by the loop, if its resistance is 64.3
A heat pump uses 100 J of work to output 150 J of heat at some temperature. What is the heat that is withdrawn from some lower temperature
A small block of mass 1.21 kg slides without friction on a horizontal table. Initially it moves in a circle of radius R0 = 0.62 m with a speed 1.8 m/s. What is the torque placed on the mass by the string
A hydraulic lift has pistons with diameters 7.85 cm and 36.5 cm,respectively. If a force of 825 N is exerted at the input piston, what maximum mass can be lifted at the output piston
A battery is designed to have an EMF of 12.0V. When the battery is connected to an unknown resistor in series the terminal voltage drops down to 10.0V. what is the value of the unknown resistor
A setup similar to the one shown in the figure below is often used in hospitals to support and apply a horizontal traction force to an injured leg. Determine the force of tension in the rope supporting the leg
Three separately located capacitors (capacities: C1, C2, C3) with the electric charges: Q1, Q2, Q3 initially are not connected by conductors
a tube open at only one end is cut into two shorter nonequal lengths. the piece that is open at both ends has a
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