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A 730 kilogram car stopped at an intersection is rear-ended by a1760 kilogram truck moving with a speed of 15.5 m/s.
A. If the car was in neutral and its brakes were off, therefore that the collision is roughly elastic, calculate the final speed of the truck.
B. Determine the final speed of the car.
An empty rubber balloon has a mass of 10-g. The balloon is filled with helium at a density of 181-kg/m^3. what is the tension in the line
Where Is The Net Force Zero? Three point charges lie along the x-axis. The positive charge q1 = 15.0 ?C is at the x = 2.00 m, What is the x coordinates of q3
consider a magnetic force acting on an electric charge in a uniform magnetic field. which of the following statements
Two different simple harmonic oscillators have the samenatural frequency (f=8.00 Hz) when they are on the surface of theEarth. Calculate the new frequency of the pendulum
Automobile engine slows down from 4500 rpm to 1200 rpm in 2.5 s. compute (a) its angular acceleration, assumed constant and (b) total number of revolutions the engine makes in this time.
n = 3.78 mol of Hydrogen gas is initially at T = 366 K temperature and pi = 2.88×105 Pa pressure. How much work did the external force perform
The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of the water. For comparison, determine the weight of a jetliner whose mass is 4.30 × 105 kg
A boats's motor can allow it to travel at speed 2V. The boat is aimed with a heading of 180 degrees. The river is X metes wide. The river flows at speed V at 270 degrees.
The base of an aluminum block, which is fixed in place, measures 90 cm by 90 cm. The shear modulus of aluminum is
q1. an artillery shell is fired with an initial velocity of 303 ms at 46deg above the horizontal. to clear an avalanche
A horizontal vinyl record of mass 0.10kg and radius 0.10 m rotates freely about a vertical axis through its center with a rotational speed of 5.10 rad/s.
A 140 g, 90.0 mph fastball comes across the plate very nearly horizontally and is batted at 90.0 mph at a 30.0 degree angle (above the horizontal) toward center field. Determine the impulse (in N's) acting on the ball
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