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Question: A boat travels down the river from point A to point B in t1 = 3 h, and in the opposite direction in t2 = 6 h.
Part A: How much time will it take for the boat to go from A to B with its engine turned off?
Please help for the above question, completely confused!! Show each steps if possible, Thanks.
An infinite non conducting sheet has a surface charge density σ = +5.80 pC/m2. (a) How much work is completed by electric field because of the sheet if a particle of charge q = +1.60 × 10-19 C is moved from the sheet to a point P at distance d = 3.56..
A point mass consisting of 26 charged particles travels at a velocity of magnitude 7.80 x 107 m/s through a uniform magnetic field of magnitude 10.2 T. Each charged particle has a charge of -12e and a mass of 3.60 x 10-29 kg. The angle between the..
In exercise physiology studies, it is sometimes important to determine the location of a person's center of mass. This determination can be done with the arrangement shown in the figure below. A light plank rests on two scales, which read Fg1 = 365 N..
a hydraulic press consists of two vertical cylinders of circular cross-sectional areas 6cm2 and 120cm2 that are joined
consider a point charge q 5.0?c point a at distance d1 1.050 m from q and point b at distance d2 0.500 m. if these
A 5.00kg block of ice is sliding across a frozen pond at 2.00m/s. A 7.60N force is applied in the direction of motion. After the ice block slides 15.0m, the force is removed. The work done with the applied force is?
Transverse waves travel with a speed of 18 m/s in a string under tension of 5 N. What tension is required for a wave speed of 27 m/s in the same string.
A dog sitting 3.7m from a vertical mirror thinks its image is another dog. How far is the image from the dog
A projector lens having a focal length of 15 cm puts an image of a 35 mm slide on a screen 4 m away, How large is the image of the slide on the screen
A uniform plank of length 5 m and weight 231 N rests horizontally on two supports, with d = 1.43 m of the plank hanging over the right support. To what distance, x, can a person who weighs 446 N walk on the overhanging part of the plank before it ..
A human hair is about 80.0 µm thick. If one uses a concave mirror with a focal length of 2.50 centimeter and obtains an image of -59.0 centimeter, find how far has the hair been located from the mirror
A 250 g piece of ice at 0°C is placed in 430 g of water at 22°C. What is the final equilibrium temperature of the system
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