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A car is driving directly north on the freeway at a speed of 117 km/h and a truck is leaving the freeway driving 76 km/h in a direction that is 40° west of north. What is the velocity of the truck relative to the car?
An alpha particle (charge 2e) is sent at high speed toward a gold nucleus. The electric force acting on alpha particle is 91 N when it's 2.00 x 10^(exponent)-14m away from the gold nucleus What is the charge on gold nucleus, as a whole number mult..
Two tugboats pull a disabled super tanker. Each tug exerts constant force of 1.20 multiplied by 106 N, one 19° west of north and the other 19.0° east of north, as they pull the tanker 0.69 km toward the west. What is the total work they do on supe..
An airplane is flying in a horizontal circle at a speed of 100 m/s. The 80.0-kg pilot does not want her radial acceleration to exceed 7g. (a) What is the least radius of the circular path? (b) At this radius, what is the force causing the centripe..
Two equally charged, 1.00 {rm g} spheres are placed with 2.00 {rm cm} between their centers. When free, each begins to acceleration speed at 225 {rm m/s^2}. What is the magnitude of the charge on each sphere.
What would be the equilibrium temperature when a 227 block of copper at 265 is placed in a 155 aluminium calorimeter cup containing 844 of water at 14.50.
At what height above the surface of the earth does the balloon have a velocity of 8.10 m/s.
If it takes 3 golf balls to equal the mass of one tennis ball, what weight of tennis balls do you require equalling the number of golf balls in one kilogram of golf balls.
A box slides down a 22° ramp with an acceleration of .92m/s2. Determine out the coefficient of kinetic friction between the box and the ramp.
The latent heat of fusion
Determine its average velocity for this trip. conclude the car's displacement.
How high above the ground will the ball be when it gets to Julie? (note, the ball may go over Julie's head.) 7) Below is some space to write notes on this problem.
One average force F1 has a magnitude that is three times as large as that of another force F2. Both forces produce the similar impulse. The average force F1 acts for a time interval of 1.77ms. for what time interval does the average force F2 act.
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