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Two waves A and B, both of wavelength λ = 30.8-cm, are initially out of phase by π. I want to bring them back in phase by placing some mirrors along the path of wave B as shown in the figure. What is the minimum spacing L required to achieve this?
If a man can jump a maximum horizontal distance (by using a 45 degree projection angle) of 2.0 meter on the Earth, determine what would be his maximum range on the Moon
A predatory fish can accelerate from rest to 5 m/s in 0.28 s. What is the acceleration of the fish
It is difficult to understand where a majority of the numbers are derived from in step 3. First where was the 288R derived from? Secondly where was the 615.38 R derived from?
A positive point charge Q1 = 2.47E-5 C is fixed at the origin of coordinates, and a negative charge Q2 = -6.67E-6 C is fixed to the x axis at x = +2.06 m. Find the location of the place along the x axis
In being served, a tennis ball is accelerated from rest to a speed of 48.0 m/s. The average power generated during the serve is 2920 Watt. obtain the force acting on the ball
The rotor in a centrifuge has an initial angular speed of 430 rad/s. After 4.1 s of constant angular acceleration, its angular speed has increased to 540 rad/s. What was the angle through which it turned
A circular wire loop of radius 15.0 cm carries a current of 2.60 A. What is the magnitude of the torque acting on the loop
Newton's equation for force.
A 2.05-kg block is on a plane at 19 degrees with respect to the horizontal. The coefficent of static friction between the block and the plan is 0.80. How many forces are acting on the block
calculate the conductance and the resistance of a 10 m length of 14 gauge copper wire which has a diameter of 1.63 mm.
A ball tied to the end of a 0.85 meter long string is twirled in a horizontal circle therefore that the centripetal acceleration acting on the ball is 20 m/s2. Find what is the period of the ball motion
Two satellites are in circular orbits around a planet that has radius 9.00x10^6m. One satellite has mass 65.0 kg, orbital radius 8.00×10^7 m, What is the orbital speed of this second satellite
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