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In a certain organic molecule, the nuclei of two carbon atoms areseparated by a distance of 0.35 \rm nm.
What is the magnitude of the electric force between them ?
Express your answer using twosignificant figures.
A 6 m long, uniform ladder leans against a frictionless wall and makes an angle of 67.3 with the floor. The ladder has a mass 21 kg. A 54.6 kg man climbs 82% of the way to the top of the ladder when it slips and falls to the floor.
A soccer player kicks a rock horizontally off a 39.0-m-high cliff into a pool of water. If the player hears the sound of the splash 2.97 s later, what was the initial speed given to the rock? Assume the speed of sound in air is 343 m/s.
The picture below shows a model of a human leg with a heavy weight on the ankle. It represents a person lying on his back doing leg-lifts to exercise the quadriceps. What is the magnitude of the gravitational torque
the horizontal surface on which the block slides is frictionless. two forces of magnitude F=25 N. N are applied to the block of mass M=5.0kg, find the magnitude of the resulting acceleration of the block
The two angled ropes used to support the crate in the figure below an withstand a maximum tension of1400Nbefore they break. What is the largest mass the ropes can support
A molecule of a mass m and velocity v strikes a wall and is reflected maintaing the same speed. What is the magnitude of the impulse imparted by the wall to the molecule
Ball 1, with a mass of 120g and traveling at 15m/s , collides head on with ball 2, which has a mass of 330g and is initially at rest. What are the final velocities of each ball if the collision is perfectly inelastic? (Vfx)1? (Vfx)2
In the figure below, a “semi-infinite” nonconductingrod (that is, infinite in one direction only) has uniform linearcharge density λ = 5.0 μC/m. Find (a) the component of electric fieldparallel to the rod and (b) thecomponent perpendicular to the ..
A 10.4 m long steel beam is accidentally dropped by a construction crane from a height of 8.67 m. What is the induced EMF in the beam just before impact with the Earth
A 60-kg student traveling in a car with a constant velocity has a kinetic energy of 1.2 X 104 J. What is the speedometer reading of the car
A hollow cylindrical tube of 2.5 m long is open at one end and closed at the other end. What is the linear distance between a node and the adjacent antinode for the third harmonic in this pipe?
Jill of the Jungle swings on a vine 6.9 m long. What is the tension in the vine if Jill, whose mass is 63 kg, is moving at 2.4 m/s when the vine is vertical
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