Physics, 03.01.2020 01:31 robloxlover1987
Aman paddles a canoe at 6 km per hour. if he paddles on a river with a current of 6 km per hour, what is the speed of the canoe if it heads: upstream? directly across the river?
Answers: 2
Physics, 21.06.2019 23:00
Follow these directions and answer the questions. 1. set up the ripple tank as in previous investigations. 2. bend the rubber tube to form a "concave mirror" and place in the ripple tank. the water level must be below the top of the hose. 3. generate a few straight pulses with the dowel and observe the reflected waves. do the waves focus (come together) upon reflection? can you locate the place where the waves meet? 4. touch the water surface where the waves converged. what happens to the reflected wave? 5. move your finger twice that distance from the hose (2f = c of c, center of the curvature) and touch the water again. does the image (the reflected wave) appear in the same location (c of c)? you may have to experiment before you find the exact location. sometimes it is hard to visualize with the ripple tank because the waves move so quickly. likewise, it is impossible to "see" light waves because they have such small wavelengths and move at the speed of light. however, both are examples of transverse waves and behave in the same way when a parallel wave fronts hit a curved surface.
Answers: 1
Physics, 23.06.2019 07:30
The fine detail of saturn's rings provides evidence that the planet may be: a. young b. millions of years old c. in a state of growing larger
Answers: 1
Physics, 23.06.2019 11:40
As the ball rolls down the ramp, there are changes in kinetic and potential energy. how much kinetic energy does the ball have when it reaches point b? a) 0j b) 25j c) 50j d) 100
Answers: 3
Aman paddles a canoe at 6 km per hour. if he paddles on a river with a current of 6 km per hour, wha...
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