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Q. Two sound sources radiating in phase at a frequency of 450 Hz interfere such that maxima are heard at angles of 0 and 22° from a line perpendicular to that joining the two sources. Find the separation between the two sources.
Q. At 3 P.M. a car is located 20 km south of its starting point. One hour later it is 118 km farther south. After two more hours, it is 9 km south of the original starting point. What is the displacement of the car between 3 P.M. and 6 P.M.?
A gardener opens a hose and water is ejected horizontally at the speed of 6m/s. The diameter of the hose is 2cm and the density of water is 1000kg/m^3.
What is the kinetic energy of an ideal projectile of mass 15.3 kg at an apex (highest point) of its trajectory, if it was launched with an initial speed of 42.5 m/s and an initial angle of 41.5° respecting the horizontal.
After the NEAR spacecraft passed Mathilde, on some occasion's rocket propellant was expelled to adjust the spacecraft's momentum in order to follow a path that would approach the asteroid Eros, final destination for the mission.
Dan is gliding on his skateboard at 2.00m/s. He rapidly jumps backward off the skateboard, kicking the skateboard forward at 8.00m/s (as measured by an observer on the ground). Dan's mass is 60.0kg and the skateboard's mass is 7.00kg.
A 1300 {rm N} crate slides 13 {rm m} down a ramp that makes the angle of 30^circ with the horizontal. If the crate slides at a constant speed, how much thermal energy is created.
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.
A lightweight string of length 60cm is attached to the ceiling at points separated by distance. Three objects of equal mass are hung from the string, separating the string into 4 equal segments of length L. If θ = 40, find the measure of angle φ a..
What should be coefficient of static friction
Find the use of an NPN common emitter transistor, advantage of direct - coupled amplifier and bandwidth of an amplifier.
At what position is the third bead in equilibrium? Can it be in stable equilibrium.
A conducting rectangular loop of mass M, resistance R, and dimensions w by l falls from rest into a magnetic field. All through the time interval before the top edge of the loop reaches the field, the loop approaches a terminal speed vT.
What is the total flux
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