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Is it possible that the net kinetic energy for two objects be zero while the net momentum is zero? Explain.
A satellite weighing 500 kg is in a circular orbit around the earth. It takes exactly 3 hour to go around the earth, What is the force of gravity on this satellite
A sailor strikes the side of his ship just below the waterline. He hears the echo of the sound reflected from the ocean floor directly below 1.6 s later. How deep is the ocean at this point
A cart of mass m1=10 kg slides down a frictionless ramp and is made to collide with a second mass m2=20kg, which then heads into a perpendicular loop of radius .25m. The carts stick together after the collision.
If the exospheric temperature is 1500 K and the hydrogen atom and helium atom densities at 500 km are 10^4 cm^3 and 10^6 cm^3 respectively,
The electric field of a capacitor remains unchanged, if the plates change their separation, but the charges remain the same. Show with equations the new energy of the capacitor relative to the initial energy, if the separation is doubled.
A common flashlight bulb is rated at 0.108 A and 3.28 V (the values of current and voltage under operating conditions). estimate the temperature of the tungsten filament
A figure skater is spinning with an angular velocity of +13 rad/s. She then comes to a stop over a brief period of time. Determine the time during which she comes to rest
A rectangular block of mass M has a hemispherical cavity of radius a carved out on its upper surface. Compute the minimum value of static friction coefficient
A brass rod with a length of 10.0 cm is placed end to end with an aluminum rod with a length of 30.0 cm, What is the heat flow from the hot temperature to the cold temperature
The speed of an ion in a particle accelerator is doubled from 0.460c to 0.920c. The initial relativistic momentum of the ion is5.30 x 10-17 kg·m/s. Decide (a) the mass and (b) the final relativistic momentum of the ion.
A beam of light originates from point P in a 3 mm thick glass block. It undergoes total internal reflection at point Q and strikes point R a distance d=5.4mm. If the glass block is in air, what is the glass' index of refraction?
A +5.7 uC point charge is onthe x-axis at x = -3.0 m, and a = 2.0 uC point charge is on thex-axis at x = +1.0 m. Determine the net electric field (magnitude and direction) on the y-axis at y = +2.0 m.
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