Physics, 21.02.2020 23:17 ant5784tgi
Two marbles, one twice as heavy as the other, are dropped to the ground from the roof of a building. Just before hitting the ground, the heavier marble has [...] as the lighter one. A. as much kinetic energy B. twice as much kinetic energy C. half as much kinetic energy D. four times as much kinetic
Answers: 3
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, 22.06.2019 04:00
Assume similar data for the motion of the blood in your aorta. estimate how many beats of the heart it will take the blood to get from your heart to your brain. (assume that the distance from your heart to your brain is 30 cm)
Answers: 2
Physics, 22.06.2019 11:30
Where is the potential energy throughout the loading, cocking, and releasing of the trebuchet?
Answers: 2
Two marbles, one twice as heavy as the other, are dropped to the ground from the roof of a building....
Business, 11.11.2020 01:20
Spanish, 11.11.2020 01:20
Mathematics, 11.11.2020 01:20
Mathematics, 11.11.2020 01:20
Physics, 11.11.2020 01:20
Biology, 11.11.2020 01:20
Mathematics, 11.11.2020 01:20
English, 11.11.2020 01:20
Mathematics, 11.11.2020 01:20