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a 3,000-kg vehicle collides with a 1,000-kg stationary vehicle. The two vehicles are locked together and move at 9 m/s. What was the speed of the 3,000-kg vehicle?
An aircraft weighing 812 N is accelerated at 11.8 m/s2 for 5 seconds, at which time the aircraft launches. Assume the acceleration is constant
Starting with the three particle system, find the change in electric potential energy if the alpha particle is allowed to escape to infinity while the two protons remain fixed in place. (Throughout, neglect any radiation effects.)
The drawing shows a rectangular block of glass (n = 1.52) surrounded by a liquid with n = 1.73. At what angle does the ray leave the glass at point B
A 91 g arrow is fired from a bow whose string exerts an average force of 115 N on the arrow over a distance of 78 cm. Illustrate what is the speed of the arrow as it leaves the bow?
a ball mass of 5 grams and radius of 1.5 cm is rolled up a frictionless ramp that is 30 degrees above horizontal with an iniitial velocity of 4 m/s
A planet with mass 7 x 1024 kg orbits a sun with a period of 1 Earth's years. The speed of the planet around that sun is constant and |v|=49600 m/s
A proton with an initial velocity of (1.0x + 2.0y+ 3.0z) xe5 m/s enters an magnetic field of 0.5zT. Find the radius of the resulting helix
Two current-carrying wires are exactly parallel to one another and both carry 3.5 A of current, What is the direction of the magnetic force caused by wire 2 on wire 1
Water has a mass per mole of 18.0 g/mol, and each water molecule (H2O) has 10 electrons. (a) How many electrons are there in 9.42 liters of water? (1 liter is equivalent to 1.00 × 10-3 m3) (b) What is the net charge of all these electrons?
Find the net downward force on the tank's flat bottom, of area 1.60 m^2, exerted by water and air inside the tank and air outside the tank.
A block and a gun are firmly affixed to opposite ends of a long glider mounted on a frictionless air track. find the mass of the gun-glider-block system
Consider two spheres of radius a with their centers separated by a distance d>>a. Find the capacitance of the system of the two spheres
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