Physics, 29.01.2022 01:00 Richwave17
2 Read the passage and answer the question followed by it. Global warming increases the risk of flooding in certain areas, especially near the equator. Food and medicines packets are dropped by pushing padded boxes from air crafts or with the help of parachutes. 4,500 KG TRI In this case, four boxes were dropped from an aircraft at a place near the equator (as shown in fig). Nearby, at the same time and height an elephant runs off a cliff Which box will hit the ground last? Why? What will the mass of the elephant be if it was running off a cliff near the poles? The red box took 0.6 seconds to reach the ground, What is its speed on striking the ground?(g =10m s?) How high was the red box from the ground? b
Answers: 3
Physics, 22.06.2019 10:00, amyaacrawford86
Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix. b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds. c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer. d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.
Answers: 1
Physics, 22.06.2019 11:50, azertyqwerty123
Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?
Answers: 2
2 Read the passage and answer the question followed by it. Global warming increases the risk of floo...
History, 14.04.2020 22:23
Mathematics, 14.04.2020 22:23