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An "astronomical unit" (AU) is equal to the Earth's semimajor axis in its orbit around the Sun, or 1.50 x 10 11 m. An asteroid is discovered which has a semimajor axis of 5.6 AU. What is the period of the asteroid's orbit about the Sun?
A 1400 kilogram car coasts in neutral down a 2.0 degree hill. The car attains a terminal speed of 20.0 m/s. Find how much power must the engine deliver to drive the car on a level road at 20.0 m/s
Suppose we are on a space ship generating a beam of electrons. In our reference frame, the electrons are traveling in the +x direction with a speed of 0.87c. Find the speed of the electrons in the Earth's reference frame
question 1. plot on a single graph the lennard-jones potential uu using the parameter sets i ai2 ei2 ii g23 623 and iii
Four identical metallic objects carry the following charges: +5.8 µC, +8.2 µC, -6.2 µC, and -2.8 µC. What is the final charge on each object
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A 36.8-kg boy, riding a 2.63-kg skateboard at a velocity of +4.87 m/s across a level sidewalk, jumps forward to leap over a wall. Just after leaving contact with the board, What is the skateboard's velocity relative to the sidewalk at this instant
a parallel-plate capacitor has an area of 5.50 cm2 and the plates are separated by 1.06 mm with air between them. it
A 3.4 kg piece of aluminum at 28°C is placed in 1.0 kg of water in a Styrofoam container at room temperature (20°C)
a charge is accelerated from rest through a potential difference and then enters a uniform magnetic field oriented
If you add 700 kJ of heat to 700 g of water at 70 degrees C, how much water is left in the container? The latent heat of vaporization of water is 22.6*10^5 J/kg
A 30 kg girl, skating at 6 m/s, collides with her 80 kg father who is initially standing still. What is their speed after the collision
A 81-kg fullback is running at 3.3m/s to the east and is stopped in 0.85s by a head-on tackle by a tackler running due west. Calculate the original momentum of the fullback
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