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Q1. A light plane is headed due south with a speed of 155 relative to still air. After 1.00 hour, the pilot notices that they have covered only 125 and their direction is not south but southeast (45.0). What is the wind velocity?
Q2. A 55 kg housepainter stands on a 17 kg aluminium platform. The platform is attached to a rope that passes through an overhead pulley that allows painter to raise her and the platform. (Ignore the mass of the pulley and any friction in the pulley.)
With what force F should she pull down on the rope to accelerate herself and platform upward at a rate of 0.77 m/s2?
What are angles of refraction
A simple harmonic oscillator consists of the block of mass 1.90 kg attached to a spring of spring constant 196 N/m. while t = 3.00 s, position and velocity of the block are x = +0.129 m and v = +3.415 m/s.
Illustration on Eratosthenes' process
Find out the tension in the rope
A beam of parallel rays from a 24 MHz citizens band radio transmitter passes between two electrically conducting (hence opaque to radio waves) buildings located 45.00 m apart. What is an angular width of the beam as it emerges from between the buildi..
What is the terminal speed for an 84.00 skier going down a 38.0 degree snow-covered slope on wooden skis = 0.06? Assume the skier is 1.70 m tall and 0.500 m wide.
What is new angular speed of the merry-go-round
Mars Rover When the Mars rover was deployed on the surface of Mars in July 1998, radio signals took about 14 {rm min} to travel from Earth to the rover. How far was Mars from Earth at that time.
Find out the vertical component of the reaction force
What is tension in the wire
A screen is placed 1.30 {rm m} behind a single slit. The central maximum in the resulting diffraction pattern on the screen is 1.70 {rm cm} wide-that is, two first-order diffraction minima are separated by 1.70 {rm cm}.
Now a peg is placed 4/5 of the way down pendulum's path so that when the mass falls to its vertical position it hits and wraps around the peg. As it wraps around the peg and attains its maximum height it ends a distance of 3/5 L below its starting po..
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