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A neutron moved through a 1 T field with a speed of 185849 m/s. The velocity of the neutron is perpendicular to the field. Calculate the magnetic force on the neutron. N
A spherical pot of hot coffee contains 0.75 L of liquid (essentially water) at an initial temperature of 95?C. Calculate the coffee's rate of heat loss by radiation
A uranium nucleus with a charge of 92e can spontaneously decay into a thorium nucleus of charge 90e and an alpha particle of charge 2e. what is the initial potential energy
Use the pivot as the reference point because then two of the four forces on the plank exert zero torque. Which two? Since the plank is at rest, Find the normal force acting at the pivot point
What fraction of the power radiated by the sun is intercepted by the planet Mercury? The radius of Mercury is 2.44 x 106 m, and its distance from the sun at the moment is 5.80 x 1010 m. Assume that the sun radiates uniformly in all directions.
A bullet of mass 25.0 g is fired into a wooden block of mass 2.200 kg that is initially at rest. what is the speed of the bullet before it impacted the block
a rock is tossed off the top of a cliff of height 34.8 m. Its initial speed is 29.1 m/s, and the launch angle is 29.8 degrees with respect to the horizontal
A scuba diver and her gear displace a volume of 65 liters and have a total mass of 68 kilograms. What is the buoyant force on the diver in sea water
Your cell phone battery states that it has a capacity of 1200mAh. That means it can provide constant current supply of 1200mA for 1 hour (or 3600 sec), Your battery provides a constant voltage of 3.7V. What is the energy in Joules stored in the bat..
A father pushes horizontally on his daughter's sled to move it up a snowy incline, as illustrated in the figure, with h = 3.8 m and ? = 18°. how much work is done by the father in moving it from the bottom to the top of the hill
Early black-and-white television sets used an electron beam to draw a picture on the screen. What is the speed of electrons in the beam
A raft is 3.9 m wide and 6.5 m long. Whencargo is loaded onto the raft, it sinks 2.9 cm deeper into the water. What is the weight of the cargo
A stone is projected at a cliff H=60 meters with initial speed 75m/s at 60degrees above the horizontal. How long does it take for the stone to strike the top of the cliff?
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