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Q. A dragonfly flies from point A to point B along the path 1.30s y1=1.0,x1=2 and y2=6,x2=10.
Find the x and y components of its position vector at point A.
Q. Two cars travel westward along a straight highway, one at a constant velocity of 77 km/h, and the other at a constant velocity of 116 km/h.
(a) Assuming that both cars start at the same point, how much sooner does the faster car arrive at a destination 35 km away?
(b) How far must the cars travel for the faster car to arrive 10 min before the slower car?
What is amplitude of the electric component of the signal
The pulley system is used to lift a 61 kg crate. Note that one chain connects the upper pulley to the ceiling and a second chain connects the lower pulley to the crate. The crate is rising with an acceleration of 2.4 m/s2. Assume the masses of the ch..
A shuffleboard disk is accelerated to the speed of 6.1 m/s and released. If the coefficient of kinetic friction between disk and the concrete court is 0.30, how far does the disk go before it comes to a stop? The courts are 14.5m long.
A farmer planted a field of Bt 123 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre. He determines that each ear has about 700 kernels on average. He also knows that the bushel contains abou..
Two point charges have a total charge of 515 µC. When placed 1.15 m apart, the force each exerts on the other is 24.4 N and is repulsive. What is the charge on each.
find out the escape speed from Jupiter's moon Callisto
NASA sends a satellite to another planet by placing the satellite in a Keplerian orbit (around the sun) such that the perihelion is at the radius of the Earth's orbit (1 AU) and the aphelion is at the radius of the planet's orbit. Most of the trip is..
The motion of peg P is constrained through the lemniscate curved slot in OB and by the slotted arm OA.
A flowerpot falls off a windowsill and falls past the window below. You may ignore air resistance. It takes time 0.420s to pass this window, which is of height 1.92 m. How far is the top of the window below the windowsill from which the flowerpot ..
Objective questions based on momentum and force.
A scuba diver at a depth of 42.0 m below the surface of the sea off shores of Panama City, where the temperature is 7 °C, releases an air bubble with volume 18 cm3.
Elucidate the spacing between peaks
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