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A 23 kg suitcase is being pulled by a handle that is at an angle of22° above the horizontal. If thenormal force exerted on the suitcase is 180 N, what is the force F applied to the handle?
A 41.0-kg child swings in a swing supported by two chains, each 3.08 m long. The tension in each chain at the lowest point is 346 N. Find the force exerted by the seat on the child at the lowest point. (Ignore the mass of the seat.)
Three capacitors having capacitances of 8.3\mu F , 8.8\mu F , and 4.0\mu F are connected in series across a 38-{\rm V} potential difference. What is the total energy stored in all three capacitors
If the frequency is variable and the length of the closed (at both ends) tube is fixed at 45 cm, sketch the plastic tube showing the position of the nodes and anti-nodes for the three lowest resonant.
visible light has a wavelength of approx 0.5 um. What is its frequency in Hz. EM radiation has a frequency of approx 3GHz, what is its wavelength in centimeters.
Light is shining perpendicularly on the surface of the earth with an intensity of 131 W/m2. determine the number of photons per second per square meter that reach the earth
A cart with mass 220 g moving on a frictionless linear air track at an initial speed of 1.0 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. What is the mass of the second cart
For all parts, assume that the "island" refers to the point at a distance D from the point at which the package is released. Ignore the height of this point above sea level. Assume that the acceleration due to gravity is g = 9.80m/s^2. What is the..
A force F = ( 2 i + 2 j ) N acts on a particle that undergoes a displacement ?r = (-6 i - j ) m. Find the work done by the force on the particle
The rotational spectrum of the HCl molecule contains lines with wavelengths of 0.0604, 0.0690 ,0.0804 ,0.0964 , and 0.1204 mm. What is the moment of inertia of the molecule
Observer O fires a light beam in the y direction(vy = c). Use lorentz velocity transformation tofind v'y and v'x and show thatobserver O' measures c for the speed of light. Assume O' movesrelative to O with the speed u in the x direction
A basketball player makes a jump shot. The 0.700 kg ball is released at a height of2.10 m above the floor with a speed of7.10 m/s. The ball goes through thenet 3.10 m above the floor at a speed of 4.30 m/s.
a plane leaves seattle flies 75.0rm mi at 22.0circ north of east and then changes direction to 55.0circ south of east.
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