A 70-cm-diameter wheel accelerates uniformly from 160rpm to 280rpm in 4.0s. Determine (a) its angular acceleration, and (b) the radial and tangential components of the linear acceleration of the point on the edge of the wheel 2.0s after it has started accelerating?
Answers: 1
Physics, 22.06.2019 09:00
When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical
Answers: 2
Physics, 22.06.2019 11:10
Which situation will produce the greatest change of momentum
Answers: 2
Physics, 22.06.2019 11:20
If a rock is thrown upward on the planet mars with a velocity of 12 m/s, its height (in meters) after t seconds is given by h = 12t − 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12−3.72a m/s (c) when will the rock hit the surface? (round your answer to one decimal place.) t = s (d) with what velocity will the rock hit the surface? m/s
Answers: 1
Physics, 22.06.2019 14:00
Why is rain likely when warm, moisture-laden air meets cold air? a) the lighter warm air will rise and cool down, causing condensation and rain. b) the cold air moves faster and pushes the warm air away, causing condensation and rain. c) the moisture in the warm air condenses on contact with the cold air, causing rain to fall. d) the cold air mixes with the warm air, reducing its temperature causing moisture to condense.
Answers: 1
A 70-cm-diameter wheel accelerates uniformly from 160rpm to 280rpm in 4.0s. Determine (a) its angula...
Mathematics, 26.07.2019 08:30
Computers and Technology, 26.07.2019 08:30
Computers and Technology, 26.07.2019 08:30
History, 26.07.2019 08:30
Social Studies, 26.07.2019 08:30
Mathematics, 26.07.2019 08:30
Mathematics, 26.07.2019 08:30
History, 26.07.2019 08:30
Mathematics, 26.07.2019 08:30
History, 26.07.2019 08:40