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A shell is shot with an initial velocityv0 of 15 m/s, at an angle of θ0= 60°with the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whosespeed immediately after the explosion is zero, falls vertically.How far from the gun does the other fragment land, assuming that the terrain is level and that the air drag is negligible?
q1. in brief explain the changes that the sun will go through after it exhausts its core hydrogen. be sure to describe
Suppose your body was able to use the chemical energy in gasoline. How far could you pedal a bicycle at 15 km/hr on the energy in 2.0 gal of gas? ( 1 gal of gas has a mass of 3.2 kg )
Calculate the acceleration of a skier heading down a 10.0 deg, slope, assuming the coefficient of friction for waxed wood on wet snow
A 7.8 cm diameter wire coil is initially oriented so that its plane is perpendicular to a magnetic field of 0.63 T pointing up. What is the average induced emf in the coil
in living tissue about one out of every 10-12 carbon atoms are the 14c isotope. if you were to discover a human bone
Differentiate the formula for the energy density per unit frequency of a blackbody to find the value of hu at which the energy density reaches a maximum. (This will be a function of temperature and is a form of Wien’s Law. You can find the constant b..
A motion sensor and a force sensor record themotion of a cart along a track, as shown above. The cart is given apush so that it moves toward the force sensor and then collideswith it. Determine the mass of the cart.
What is the strength of an electric field at a distance r from the center, inside the sphere. Assume the sling thrower could gradually increase the speed of the stone.
You are trying to advance your shooting skills by shooting at a can on top of a fence post. You miss the can, and the bullet, moving at 207 m/s, is embedded 1.54 cm into the post when it comes to a stop. If constant acceleration is assumed, how long ..
When a 45.0-V emf device is placed across two resistors in series, a current of 15.0 A is flowing in each of the resistors. When the same emf device is placed across the same two resistors in parallel,
part 1 a 500g bar 0.8m across moves with a velocity 5.0 meters per second. the total resistance of the wire is 0.5
When you push a 1.95kg book resting on a tabletop it takes 2.50N to start the book sliding. Once it is sliding, though, it takes only 1.50N to keep the book moving with constant speed. What are the coefficients of static and kinetic friction betwe..
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