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A particle is acted on by 2 torques about the origin: has a magnitude of 2.0Nm and is directed in the positive direction of the x axis, and has a magnitude of 4.0Nm and is directed in the negative direction of the y axis. In unit-vector notation, find where is the angular momentum of the particle about the origin.
Assume all temperatures to be exact. Ice (initially at 0 ) is added to 0.50L of tea at 18C to make the coldest possible iced tea. If enough ice is added so the final mixture is all liquid, how much liquid is in the pitcher when this condition occurs?
A constant force, = (1.27, -2.33, 3.93) N, acts on an object of mass 10.3 kg, What is the total work done by this force
Two forces, F1= (1.35i-0.95j)N and F2= (-0.85i+1.20j)N are applied on a moving object of mass 0.30 kg. What is the work done by the two forces
A certain cable car in San Francisco can stop in 10s while travelling at maximum speed. On one occasion, driver sees a dog a distance d m in front of the car and slams on the brakes instantly.
A bullet of mass 30 g collides completely inelastically with a ballistic pendulum of mass 2.5 kg. Calculate the velocity of the bullet right before it collides with the pendulum
The drawing shows a square, each side of which has a length of L = 0.25 m. Find the electric potential energy of a third charge
A beam of laser light of wavelength 632.8 nm has a circular cross-section 2.00 mm in diameter. Find the required width and height of the aperture
Oppositely charged parallel plates are separated by 4.52 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates?
At one point in a pipeline the water's speed is 3.00m/s and the gauge pressure is 5.00x10^4Pa. Find the gauge pressure at a second point in the line
A wrecking ball used to knock down buildings has a mass of m = 1250 kg and is suspended from a cable of length L =23 m. what is the highest mass the ball can have
A boy in a moving bus at +6 m/s observes a car moving at -3 m/s. What is the actual velocity of the car
Two different wavelengths of monochromatic light are projected through the same double slit. First a 490 nm light is projected, calculate the unknown wavelength
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