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in a science fiction movie a 100 g base ball travelling with a speed of 60m/s and an electron travelling at a speed of 1.2*10^8 m/s are approaching each other for a head on collision,
what is the momentum of the base ball?
what is the kinetic energy of the electron?
A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E = 42.3 J and a maximum displacement from equilibrium of 0.259 m, Find the potential energy stored in the spring when x = 0.160 m
On a spacecraft, two engines fire for a time of 598 s. One gives the craft an acceleration in the x direction of ax = 4.92 m/s^2, while the other produces an acceleration in the y direction of ay = 7.60 m/s2. At the end of the firing period, the c..
A distance away from a uniformly charged spherical object, the magnitude of the electric field is 575V/m and the electric potential is 3.50kV. (a) What is the distance to the center of the object? (b) What is the magnitude of the charge?
The potential difference between the ends of a resistor is 9 V and the rate of energy dissipation in it is 18 W. What is the value of that resistor
Coherent light with wavelength 600 nm passes through two very narrow slits and the interference pattern is observed on a screen 5.00 m from the slits. The first-order bright fringe is at 4.74 mm from the center of the central bright fringe. For what ..
A 69-kg construction worker stands at the far end of the beam. What is the magnitude of the torque about the point where the beam is bolted in place.
A spherical Christmas tree ornament is7.18 cm in diameter.What is magnification of the image ofan object placed 8.6 cm away from the ornament.
A student from Sidney, Australia compares the distance he obtained from the 1-st spark mark to the 20-th spark mark, What difference in the results was found
A 1.30-kg ball, moving to the right at a velocity of +4.52 m/s on a frictionless table, collides head-on with a stationary 8.40-kg ball. Find the magnitude and direction of the final velocity of the two balls if the collision is completely inelastic
An object at rest explodes into three pieces of equal masses. One moves east at 23 m/s, while the second piece moves northwest at 14 meter per second. Find the velocity of the third piece?
Determine the magnitude of door's angular acceleration.
Compute the force that acts on a square access hatch at the bottom of the tank that measures 0.25m by 0.25m.
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