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Consider a fusion reaction in which a proton fuses with a neutronto form a deuterium nucleus. How much energy (in MeV) is released in this reaction? (The mass of the deuterium nucleusis 2.01355u)
A car of 1200 kg travels east at 24 m/s while a truck of 2200 kg travels north at 19 m/s They collide and stick together. a) What is the momentum in the system? b) What is the final velocity (magnitude and direction) after the collision?
A 2.0-mW laser pointer has a beam diameter of 1.7 mm. When it is accidentally pointed at a person's eye, What is the intensity of light incident on the retina
A certain atom of has 89 protons. Assume that the nucleus is a sphere with radius 7.25 fm, find the magnitude of the electric field produced by the protons
A 2700 kg truck traveling north at 42 km/h turns east and accelerates to 53 km/h. What is the change in the truck's kinetic energy
A 0.145-kg baseball pitched horizontally at 27 m/s strikes a bat and is popped straight up to a height of 25 m. calculate the average force [exerted by the bat on the ball] during contact
What is an average velocity of the rock
A person pulls a toboggan for a distance of 30-m along the snow with a rope directed 25.0° above the snow. The tension in the rope is 98-N.
If the balls are released from a height where the bottom of the basketball is at 0.781m above the ground, what is the absolute value of basketball's momentum just before it hits the ground.
A spherical weather balloon is filled with hydrogen until its radius is3.00m. Its total mass including the instruments it carries is10.0kg. Find the buoyant force acting on the balloon
Two lenses having focal lengths of f1=15 cm and f2=9 cm are separated by a distance of 50cm. If the lenses are moved into contact, what is their combined focal length
The radioactive isotope TI-204 decays to Pb-204 by emitting an electron. The electron may have a kinetic energy of up to 0.763 MeV. Find the momentum of the electron
From a height of 35.5m , a 1.50kg bird dives (from rest) into a small fish tank containing 53.5kg of water. What is the maximum rise in temperature of the water
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