Physics, 11.10.2019 17:00 scheyennekreger

Aboy flies a kite with the string at a 30 degree angle to the horizontal. the tension in the string is 4.5n .

how much work in j does the string do on the boy if the boy stands still?

how much work does the string do on the boy if the boy walks a horizontal distance of 11m away from the kite?

how much work does the string do on the boy if the boy walks a horizontal distance of 11m toward the kite

Answers: 1

Show answers

Another question on Physics

Physics, 21.06.2019 13:40

The de broglie relation λ=h/p can be rewritten in terms of the wave number k as p=kℏ. recall that wave number is defined by k=2π/λ. using the fact that λ=v/f, find the wave numbers k1 and k2 corresponding to frequencies f1 and f2. express your answer as two expressions

Answers: 2

Answer

Physics, 21.06.2019 22:00

Atank holds 1000 gallons of water, which drains from the bottom of the tank in half an hour. the values in the table show the volume v of water remaining in the tank (in gallons) after t minutes.t(min) 5 10 15 20 25 30v(gal) 694 444 250 111 28 0(a) if p is the point (15, 250) on the graph of v, find the slopes of the secant lines pq when q is the point on the graph with t = 5, 10, 20, 25, and 30.(b) estimate the slope of the tangent line at p by averaging the slopes of two secant lines.(c) use a graph of the function to estimate the slope of the tangent line at p. (this slope represents the rate at which the water is flowing from the tank after 15 minutes.)show all steps.

Answers: 2

Answer

Physics, 22.06.2019 01:00

Avehicle has an oil leak that is causing the entire oil pan to be wet, but inspection reveals no exact source after cleaning off the oil residue. technician a says to install a fluorescent dye in the crankcase and operate the engine, then re-inspect for leaks with a special light (black light). technician b says the oil leak may be coming from a source at the top of the engine, such as a valve cover gasket. who is correct?

Answers: 1

Answer

Physics, 22.06.2019 11:20

If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s

Answers: 1

Answer

You know the right answer?

Aboy flies a kite with the string at a 30 degree angle to the horizontal. the tension in the string...

Questions