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During a workout, the football players at Rutgers State University ran up the stadium stairs at a steady pace in 52 second. The stairs are 85 meter long and inclined at an angle of 43 degree. If a typical player has a mass of 112 kilogram, find the average power output on the way up. Neglect friction and air resistance (g = 9.8m/s2)
watts
An alpha particle (helium nucleus, charge 2e) starts from rest and travels a distance of 1.88 cm under the influence of a uniform electric field of magnitude 12.2 kV/m
an electron travels at a speed of 2.0 x 104 ms through a uniform magnetic field of strength 1.2 x 10-3 t. what is the
An ideal gas is at a temperature of 30 degrees C, find the number of particles per unit volume of the gas
A small conductive rod of length 1.4 m moves with a constant velocity v=11 m/s in a direction parallel to a long wire carrying a current of 34 A. Calculate the electric potential induced across the rod
question a student calculates the frequency of a waveform produced by a tuning fork to be 303 hz. if the tuning fork is
The parallel plates in a capacitor, with a plate area of 5.80 cm2 and an air-filled separation of 4.90 mm, are charged by a 8.10 V battery. They are then disconnected from the battery and pulled apart (without discharge) to a separation of 6.70 mm..
A cab driver picks up a customer and delivers her 2.70 km away, driving a straight route. Find the lengths of the acceleration and deceleration phases
q1. while her kid brother is on a wooden horse at the edge of a merry-go-round sheila rides her bicycle parallel to its
Determine the force acting on an electron moving at 2.5 x 10^5 meters per second when it enters a magnetic field perpendicular to its direction of motion
A 1.32 kg book slides 1.15 m along a level surface. The coefficient of kinetic friction between book and surface is 0.136. Find the work done by friction
A beam of hydrogen molecules (H2) is directed toward a wall, at an angle of 38° with the normal to the wall. What is the beam's pressure on the wall
A container is filled to the brim with 1.6 L of mercury at 20°C. As the temperature of the container and mercury is increased to 49°C, compute the linear expansion coefficient of the material
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