(b) Explain any THREE causes of environmental degradation
(c) A stone of mass 10kg is thrown to a height of 100m.
i. What is the kinetic energy (K. E) at the maximum height?
ii. What is the potential energy (P. E) at the maximum height?
111.
What is the K. E and P. E just as the stone strikes the ground?
iv. Calculate the K. E and hence the velocity after falling 50m (take g=10ms).
Answers: 3
Physics, 21.06.2019 19:30
Ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision .
Answers: 2
Physics, 22.06.2019 02:10
Astudent is performing an experiment comparing sound and light waves. the student gathers the following data. what conclusion does the student most likely make based on this data? light waves always travel the same speed; however, the speed of sound is determined by the medium that it travels through. all sound waves always have the same energy, so the temperature of the medium does not affect wave speed. light needs to vibrate particles, so it travels fastest in tightly packed solids, while sound does not need a medium, so it travels fastest in a gas. tightly packed particles in solids slow down the light waves; however, sound waves make particles bounce into each other, so they travel faster in solids.
Answers: 3
Physics, 22.06.2019 04:50
Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves
Answers: 2
(b) Explain any THREE causes of environmental degradation
(c) A stone of mass 10kg is thrown to a h...
Mathematics, 11.11.2021 02:10
Mathematics, 11.11.2021 02:10
Biology, 11.11.2021 02:10
English, 11.11.2021 02:10
Physics, 11.11.2021 02:20
Mathematics, 11.11.2021 02:20
Mathematics, 11.11.2021 02:20
Mathematics, 11.11.2021 02:20