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a) Find the angular speed about the polar axis, as well as the translational speed and acceleration of a point on the earth’s surface at alatitude of 45°N.
b) How do these values compare with the corresponding values for a point on the equator? (The radius of the earth is6.38 ×106 m.)
runner a is initially 5.7 km west of a flagpole and is running with a constant velocity of 8.3 kmh due east. runner b
q1. a proton is travelling to the right at. it has a head-on perfectly elastic collision with a carbon atom. the mass
A box of negligible mass rests at the left end of a 2.06-m, 26.5-kg plank (seefigure). The width of the box is w = 68.9 cm, and sand is to be distributed uniformly throughout it. The center of gravity of the nonuniformplank is x = 47.0 cmfrom the ..
A source emits sound uniformly in all directions. There are no reflections of the sound. find the total sound power P emitted by the source
A beam of unpolarised light with a power of 70 mW is passed through two polarisers in series, with their polarisation directions parallel to each other. What is the maximum power that can be transmitted through the two
question the current flowing in a solenoid that is 20.1 cm long and has a radius of 2.80 cm and 524 turns decreases
A 5 kg block sits on an inclined plane with angle 30o. A force is applied up the incline. What is the magnitude of the applied force required to keep the block stationary? (assuming no friction)
A rope with 270g of mass per meter is under 600N tension. A wave with frequency 4.0Hz and amplitude 6.1cm is propagating on the rope. What is the average power carried by the wave?
A radio antenna broadcasts a 1.0 MHz radio wave with 28 kW of power. What is the electric field amplitude at this distance
Explain why the electrostatic interaction in ionic solids would (if alone) result in the collapse of the crystal to zero size and what it is that prevents this collapse in real crystals (be sure to be explicit)
the electric field on the axis of a uniformly charged ring has magnitude 380 knc at a point 6.4 cm from the ring
A 3.00-kg block starts from rest at the top of a 30.0degree inclineand slides 2.00 m down the incline in 1.50 s. Find (a) theacceleration of the block, (b) the coefficient of kinetic frictionbetween the block and the incline, (c) the frictional force..
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