Answers: 2
Physics, 22.06.2019 02:10
How is coal extracted from mountaintop removal mines? a. dynamite is used to create underground tunnels where miners go to extract the coal. b. dynamite is used to break apart rocks and then draglines are used to remove the broken rock and reach the coal. c. coal in mountaintops is extracted by digging strips in the landscape to reach the coal. d. placer deposits in mountain river bottoms are removed by
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 โ 1.86t2. (a) find the velocity of the rock after two seconds. m/s (b) find the velocity of the rock when t = a. 12โ3.72a 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 17:50
If there's a small amount of friction between two surfaces, the result could be select all that applya. no movement b. heatc. a little bit of movementd. sliding around
Answers: 2
The chief by 3 3/4 kg of apple's 7 1/4 kilograms of peers and 10 1/8 kilograms with orange about how...
Mathematics, 23.10.2019 02:10
Mathematics, 23.10.2019 02:10
Mathematics, 23.10.2019 02:10
Geography, 23.10.2019 02:10
Mathematics, 23.10.2019 02:10
Computers and Technology, 23.10.2019 02:10
Mathematics, 23.10.2019 02:10
Mathematics, 23.10.2019 02:10
Mathematics, 23.10.2019 02:10
History, 23.10.2019 02:10
Mathematics, 23.10.2019 02:10
Health, 23.10.2019 02:10
Social Studies, 23.10.2019 02:10