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At a certain harbour, the tides reason the ocean surface to rise and fall a distance d (from highest level to lowest level) in SHM, with a period of 12.5 h. How long does it take for the water to fall a distance 0.250 d from its highest level?
A projectile is fired at an upward angle of 45° from the top of a 312 m cliff with a speed of 220 m/s. What will be its speed when it strikes the ground below
A straight 2.00-m, 150-g wire carries a current in a region where the earth's magnetic field is horizontal with a magnitude of 0.55 gauss. a) What is the minimum value of the current in this wire so that its weight is completely supported by the m..
how does the position vs time graph differ from a position vs time graph for constant velocity motion? how does it show
An object at rest in a coordinate frame suddenly explodes into three parts of equal mass m. Two parts move away at right angles to each other and with equal speeds |v|.
The acceleration due to gravity becomes weaker by about three parts in ten million for each meter of increased elevation above the Earth's surface. Suppose a skyscraper is 100 stories tall, with the same floor plan for each story and with uniform ave..
a regular hexagon of side 10 cm has a charge 5 microc at each of its vertices. calculate the potential at the centre of
The current in a coil drops from 3.9 A to 1.8 A in 0.53 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
A pitcher throws a curveball that reaches the catcher in0.55 s. What is the angular displacement of the baseball
A flowerpot falls off a windowsill and falls past the window below. You may ignore air resistance. It takes the pot 0.360 s to passthis window, which is 2.00 m high. How far is the top of the windowbelow the windowsill from which the flowerpot fell?
find the speed of the test charge. find the distance the car travels during this time in m.
Light of wavelength 550. nm in air is found to travel at 1.96x10^8 m/s in a certain liquid. Determine the frequency of the light in air
A block of wood of mass 0.938 kg is initially at rest. A bullet of mass 0.0492 kg traveling at 107 m/s strikes the block and becomes embedded in it. With what speed do the block of wood
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