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A race-car drive buys a car that can accelerate at +5.9m/s^2. Theracer decides to race against another driver in a crappy car. Bothstart from rest, but the crappy car leaves 1 sec. before therace-car. The crappy car moves with a constant acceleration of+3.6m/s^2.
a) find the time it takes the sports car to overtake the crappycar.
b) find the distance the two drivers travel before they are side byside.
c) find the velocities of both cars at the instant they are side byside.
a bird flies 2.8rm km due west and then 2.7rm km due north. another bird flies 2.7rm km due west and 2.8rm km due
A 1070-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam.
two converging lenses are separated by 23.40 cm. the focal length of each lens is 12.20 cm. an object is placed 36.40
suppose you attach the object with mass m to a vert spring at rest and let it bounce up and down. you release the object from restat the springs original rest length.
A ball is thrown horizontally from the top of a tower 30m high and lands 15m from its base. What is the ball's initial speed
a small fly of mass 0.30 g is caught in a spiders web. the web vibrates predominately with a frequency of 3.4 hz.what
A force F produces an acceleration a on an object of mass m=2 kg. a force 4F IS exerted on a second object and an acceleration of 8a results. ( this means that if four times the original force is exerted , a new object accelerates by an amount equal ..
Two parallel slits are illuminated by light composed of two wavelengths. One wavelength is ?A = 591nm. The other wavelength is ?B and is unknown. What is the unknown wavelength
A bullet is fired into a block of wood sitting on a block if ice. The bullet has an initail velocity of 500m/s and a mass of 0.005 kg. The wooden block has a mass of 2kg and is initially at rest.
A 37 g bullet, with ahorizontal velocity of 494 m/s, stops13 cm within a solid wall. What is the change in its mechanical energy
a 1.2-m-long steel rod with a diameter of 0.50 cm hangs vertically from the ceiling. By how much does the rod stretch
A particle (Mass=m, charge=e, and Energy=E) is incident on a potential barrier from x
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