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The sun radiates energy at the rate of approximately 3.80 x 1026 W. Assume that this energy is produced by a reaction whose net result is the fusion of four protons to form a single 4He nucleus and the release of 25.0 MeV of energy that is radiated into space. Calculate the sun's loss of mass per day.
The loaded cab of an elevator has a mass of 3.00 multiplied by 103 kg and moves 171 m up the shaft in 23s at constant speed. At what average speed does the force from the cable do work on the cab?
Consider a person on the moon who launches herself into a satnding broad jump at 45 degrees. What is the range of the jump
There are many estimates of the number of stars in the universe. One estimate is that there are 1010 stars in the Milky Way galaxy, and that there are 1010 galaxies in the universe.
A hollow sphere is rolling along a horizontal floor at 7.0 m/s when it comes to a 39^circ incline. How far does it go up the incline before coming to a stop and roll back down.
What is the final velocity of a hoop that rolls without slipping down a 3.00 m high hill, starting from rest
You are stranded on a deserted island. You have some wire, but no magnets. You decide to use the Earth's magnetic field, the only one available to you. What area must the coil have
An 80-N crate slides with constant speed a distance of 5.0 m downward along a rough slope that makes an angle of 30 ° with the horizontal
A particular vacuum flask has a mass of 1 kilogram and contains 1 liter of liquid water, what is the speed of the empty flask, Assume its initial velocity is zero
a ray of light traveling through one type of glass, In which type of glass does light travel at a higher speed
The outside mirror on the passenger side of a car is convex and has a focal length of -8.5 m. Find the image distance of the truck
A charge of 3.45 µC is uniformly distributed on a ring of radius 9.5 cm. Find the electric field strength on the axis at the following locations. (a) 1.2 cm from the center of the ring N/C (b) 3.1 cm from the center of the ring N/C (c) 4.0 m from ..
A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 58.0 m/s, What work does the racket do on the ball
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