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Problem: A passenger on a moving train walks at a speed of 1.60 m/s due north relative to the train. The passenger's speed with respect to the ground is 4.5 m/s at an angle of 30.0° west of north.
Part A: What are the magnitude and direction of the velocity of the train relative to the ground?
If possible just a brief explanation how you got the answer?
Light from an argon laser strikes a diffraction grating that has 5390 grooves per centimeter. Determine the wavelength of the laser light
Determine the phase and group velocities for a monatomic lattice. Plot the velocities versus the wave vector k and give a brief discussion of their significance.
a what must the charge sign and magnitude of a particle of mass 1.42g be for it to remain stationary when placed in a
A platform with a total weight of 2900lbf is raised by a power screw at a rate of 20 in/s. How much power is exerted on the platform? Do the power screws require precisely, more, or less than that amount?
Three point charges are arranged on a line. Charge q3 = +5.00 nC and is at the origin. Charge q2 = -3.50 nC and is at x = 5.00cm . Charge q1 is at x = 2.00cm.
a mass m1 on a horizontal shelf is attached by a thin string that passes over a frictionless pulley to a 2.5 kg mass m2
You toss a ball straight up. When it leaves your hand, it is 1.5 meter above the floor. Compute how fast was it going when it left your hand
A contact lens is made of plastic with an index of refraction 1.38. The lens has an inner radius of curvature of +2.46 cm and an outer radius of curvature of +2.08 cm. What is the focal point of the lens?
A 0.329-kg volleyball approaches a player horizontally with a speed of 12.9 m/s. What impulse is delivered to the ball by the player
Establish the speed of transverse waves on a string under a tension of 80.0 N if the string has a length of 2 m and a mass of 5 g. (b) Calculate the power required to create these waves if they have a wavelength of 16 cm and an amplitude of 4 cm.
A projectile is fired straight up at a speed of 15 m/s. The acceleration of gravity is 9.8m/s2. Find how long does it take to reach the top of its motion
A bowling ball weighing 70.1N is attached to the ceiling by arope of length 3.70m. What is the tension in the rope at this instant
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