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A delivery truck travels 30 blocks north, 20 blocks east, and 24 blocks south. Suppose the blocks are similar length.
Find the magnitude of its final displacement from origin?
Find the direction of its original displacement from origin?
compute the reactance of a .450 h inductor at frequencies 60hz compute the reactance of a 2.5 uf capacitor at the same
A 2.0 kg mass (mA) and a 5.50 kg mass (mB) are connected to a lightweight cord that passes over a frictionless pulley. The pulley only changes the direction of the force exerted by the rope.
A 7.0 kilogram box slides a 14 meter distance on ice. If the coefficient of kinetic friction is 0.24, evaluate what is the work done by the friction force
A cylindrical conductor has resistance of R0 = 200 ? (ohms). what's the value of the new resistance in ohms
Two metal balls are hung from strings. The first ball, 0.1 kg, is pulled to the side and released so that it strikes the second ball with a speed of 1.56 m/s. What is the mass of the second ball
If the cardiac output of a small dog is 4.05 x 10-3 m3/s, the radius of its aorta is 0.516 cm, determine the pressure drop across the aorta of the dog
A block of mass, m1 is 5 kg. It is lying on a frictional horizontal surface. Evaluate the magnitude of the net force on the hanging block
A parallel beam of light containing red (660 nm) and violet (410 nm) wavelengths goes from diamond to water, striking the surface between them at a 19° incident angle
an optical pin is placed midway between two parallel plane mirrors m1 and m2 which are 10cm apart. how far from the
Two particles move about each other in circular orbits under the influence of gravitational forces, with period T. Prove that they collide after time T/4√2
A round object has a rotational inertia of I = ?MR2, where ? is a constant, M is its mass and R is its radius. What fraction of the total kinetic energy is rotational
A ruby laser emits an intense pulse of light that lasts a mere 30 ns. The light has a wavelength of 690 nm, and each pulse has an energy of 200 mJ. (A) How many photons are emitted in each pulse? (B) What is the rate of photon emission, in photons pe..
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