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A bicycle and its rider together has a mass of 78 kg. What power output of the rider is required to maintain a constant speed of 5.0 m/s (about 11.2 mph) up a 5.0% grade (a road that rises 5.0 m for every 100 m along the pavement)? Assume that frictional losses of energy are negligible.
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what is the minimum diameter of the eyepiece required to collect all the light entering the objective from a distant point source located on the telescope axis
a 35 kg uniform ladder is leaned against a building. the 5 m tall ladder makes an angle of 60 degrees with the
A cylindrical storage tank has a radius of 1.11 m. When filled to a height of 3.81 m, it holds 15,301 kg of a liquid industrial solvent. What is the density of the solvent
A small metal bead, labelled A, has a charge of 29 nC. It is touched to metal bead B, initially neutral, so that the two beads share the 29 nC charge, but not of necessity evenly. When the two beads are then placed 5.0 {rm cm} apart, the force betwee..
104.05 J of energy are transferred to a system in the form of heat while the internal energy decreases by 57.65 J. How much work is done by the system
A certain freely falling object, released from rest, requires 1.50 s to travel the last 30.0 m before it hits the ground. Find the velocity of the object when it is 30 m above the ground
At what speed do a bicycle and its rider, with a combined mass of 100-kg, have the equal momentum as a 1500 kg car travelling at 5 ;{ rm m}/ {rm s}.
The value of F B. ds along closed path in a magnetic field is given by 6.28 X 10 T.m. What is the total current that passes througn this closed path?
A +20 nC point charge is placed on the x axis at x =2.0 m, What is the direction of the electric field at the origin
A velodrome track is banked so that a bicycle traveling at 78.2 km/h will have no tendency to slip to either side when traveling on the path that has a radius of curvature of 76.0 m
A 804 kg car is going 20 m/s and the driver has to slam on his brakes to prevent an accident. what is the change in temperature of the brake pads
A projectile launcher is set up in lab at a height of 1.05 meters above the lab floor. What is the horizontal distance which the projectile travels before it hits the ground
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