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During a wicked thunderstorm, Sam sees two bolts of lightning simultaneously strike two points 5.66 m apart. Pam, however, finds that one of these lightning bolts strikes 13.50 ns after the first. By astounding coincidence, Pam is traveling exactly in the direction defined by a line through the two lightning srtikes. According to Pam, how far apart do the two lightning bolts strike?
A 60 kg front seat passenger in a car moving initially with aspeed of 23 m/s (50 MPH) is brought to rest by an airr bag in a time of 0.4s. What is the impulse acting on the passenger
A particle of mass m moving along the x-axis collides elastically with another particle of identical mass at rest in the lab frame and scatters. Its final momentum makes an angle theta with the x-axis in the lab. If its initial kinetic energy is K_0,..
A sphere that is a perfect blackbody radiator has a radius of 0.130 m, Calculate the net rate at which the sphere radiates energy
A man stands on the roof of a 13.0 {\rm m}-tall building and throws a rock with a velocity of magnitude 30.0 {\rm m}/{\rm s} at an angle of 30.0^\circ above the horizontal. Calculate the magnitude of the velocity of the rock just before it strikes ..
A disk-shaped merry-go-round of radius 3.02 m and mass 169 kg rotates freely with an angular speed of 0.692 rev/s. What is the final angular speed of the merry-go-round
A 180 g top spinning at 14 rev/s makes an angle of 30° to the vertical and precesses at a rate of 1 rev per 8.0 s. what is the moment of inertia of the top
An automobile with a mass of 940 kg goes around a curve with a radius of 64m.The coefficient of friction between the tires and the road is 0.700. Illustrate what is the maximum speed with which the car can go around the curve ?
Two identical cars collide head-on each traveling at 80 km/hr. Suppose that all their kinetic energy is transformed into thermal energy. What is the temperature increase of each car
Two metal spheres of different sizes are charged such that the electric potential is the same at the surface of each, What is the ratio QB/QA and EB/EA
A 3-kg sphere makes and inelastic collinsion with a second sphere initially at rest. What is the mass of the second sphere
A top has a moment of inertia of 2.78 × 10^?4 kg·m^2 and is initially at rest. It is free to rotate about a vertical stationary axis. What is the angular velocity of the object
In a phyiscs lab experiment, a coil with 200 turns enclosing an area of 13.7cm2 is rotated during the time interval 3.7E-2 from a position, What is the magnitude of the total magnetic flux
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