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Question: The coefficient of static friction between the m = 3.65-kg crate and the 35.0° incline of the figure below is 0.335. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?
A wooden raft has a mass of 85 kg. while empty it floats in water (density 1000 kg/m3) with 61 percent of its volume submerged. What mass of sand can be put on the raft without it sinking.
A torque of 12 N.m is applied to a solid uniform disk of radius 0.50 m. If the disk accelerates at 5.7 rad/s^2 what is the mass of the disk
Two identical spheres are placed with centers 0.25 m apart, one is given a charge 20nC and the other-36nC, what will be the electric force each exerts on the other
A football is thrown at a speed of77 mph at a wall that is 52 ft away. Upon colliding with the wall thefootball exerts 43 lb of force due north onthe wall. How much force does the wall exert on the football and in what direction?
in 1910 rutherford performed a classic experiment in which he directed a beam of alpha particles at a thin gold foil.
Charged particles pass through a velocity selector with electric and magnetic fields at right angles to each other, as shown in the figure. If the electric field has a magnitude of 490 N/C and the magnetic field has a magnitude of 0.14 T, what speed ..
A 45.0 kg girl is standing on a 136 kgplank. The plank, originally at rest, is free to slide on a frozenlake, which is a flat, frictionless surface. What is her velocity relative to the surface of ice
The wave function for a wave on a taut string is y(x,t) = 0.355 sin [(9)(pi)(t) - (3)(pi)(x) + (pi/4)], where x and y are in meters and t is in seconds. What is the energy contained in each cycle of the wave
four resistors and a capacitor are connected to an 18 v battery with negligible internal resistance, calculate the net resistance of the circuit
An airplane propeller is 2.18 m in length (from tip to tip) with mass 97.0 kg and is rotating at 2600 rpm (rev/min) about an axis through its center. What would its angular speed have to be
A 4.6mH toroidal inductor has 150 identical equally spaced coils. If it carries an 12.0A current, at what rate is the current in it changing
Astronauts on our moon must function with an acceleration due to gravity of 0.170g A. If an astronaut can throw a certain wrench 11.0{rm m} vertically upward on earth, how high could he throw it on our moon if he gives it the same starting speed i..
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