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A ladder of mass M and length 4 m rests against a frictionless wall at an angle of 50 degrees to the horizontal. The coefficient of static friction between the ladder and the floor is 0.65. What is the maximum distance along the ladder a person of mass 15M can climb before the ladder starts to slip?
question a pickup truck has a width of 78.9 in. if it is traveling north at 38 ms through a magnetic field with
a doubly charged helium atom whose mass is 6.6 10- 27 kg is accelerated by a voltage of 2400 v.what will be its radius
You are standing 3.0 m from a convex security mirror in a store. Estimate the radius of curvature of the mirror
An object at rest on a flat, horizontal surface explodes into two fragments, one 5 times heavier than the other. Find how far does the lighter fragment slide
A battery with an emf of 12.0 Volt shows a terminal voltage of 11.82 Volt when operating in a circuit with three 9.3 W light bulbs connected in parallel with it. Find the battery internal resistance in units of ohms
Pilot wants to fly an airplane due north, but there's a 65km/h wind blowing towrd teh east. (a) In what direction should the pilot head the plane if its speed relative to the air is 340km/h?(b) draw a vector diagram to illustrate it.
The air inside a bicycle tire pump has 153 joules of work done on it as 89.9 joules of heat is conducted away from it
An object is so = 2 m from the front side of a converging lens with focal length f1 = 1 m, Draw a ray diagram of the situation, Where is the final image now, What is the new magnification
Find the length of a side of a cube having a mass of 1.3 kg and the density of nuclear matter, taking this to be 2.3 ? 1017 kg/m3
a bug zapper consists of two metal plates connected to a high-voltage power supply. the voltage between the plates is
An antitank weapon fires a 3.00 kg rocket which acquires a speed of 50m/s after travelling 90cm down a launching tube. Assume the rocket was accelerated uniformly, what force acted on it.
A motor is designed to operate on 131 V and draws a current of 12.2 A when it first starts up. What is the resistance of the armature coil
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