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A police van moving on a highway with a speed of 30 kmph fires a bullet of a theif's car speeding away in the same direction with a speed of 192 kmph. If the muzzle speed of the bullet is 150 m/s, with what speed does the bullet hits the theif's car?
Someone pushed a 7.5 kg box across the room, traveling 12.0 m. The coefficient is 0.34. Find the box's initial speed
Two particles of masses M1 = 93000 kg and M2 = 4200 kg are initially at rest an a distance 148.1 km apart. The masses are let go, and as a result of the gravitational force the two masses move towards each other.
When a hammer strikes a nail, it is compressed along its length. What average force was exerted on the nail by the hammer
A constant horizontal force Fa pushes a 1.50kg FedEx package across a frictionless floor on which a xy coordinate system has been drawn. gives package's x and y velocity components versus time t.
Two point charges 1.9cm apart have an electric potential energy -150?J . The total charge is 30nC
A 5mm tall object is placed in front of a thin lens of focal length 4cm. what is the distance of the object from the lens
A small object, which has a charge q = 7.4 µC and mass m = 9.85 10-5 kg, is placed in a constant electric field. Determine the magnitude of the electric field
A particle of rest mass m0 moving with a speed of 0:8c collides and sticks to a particle of rest mass 3m0 that is initially at rest. What is the kinetic energy of the initial moving particle
When the centrifuge reaches an angular speed of 2.5 rad/s, the trainee experiences a total acceleration equal to 4.8 times the acceleration due to gravity. Explain how long is the arm of the centrifuge?
Using Newton's Version of Kepler's Third Law II Calculate the orbital period of the Space Shuttle in an orbit 200 above Earth's surface. Express your answer using two significant figures. T= s
Knowing that these two tones are two harmonics apart, find the smallest length the tunnel could have. Also determine the harmonic number for these two tones
What is the force of gravity between two 1000-kg cars separated by a distance of 25m on a interstate
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