Physics, 12.03.2020 16:52 jaccamoboy
1. (5 pts) (Inspired by 7.1) On May 1953, Tenzig Norgay and Edmund Hillary became the first humans to climb to the summit of Mount Everest (8850 m). Assume they each had a mass of 75 kg while climbing, plus each carried 20 kg of equipment and clothes. Climbing started from base camp (at 5335 m above sea level) and had to be gradual so their bodies could adjust to low air pressure. There were four stops before the summit was reached: camp 1 (6000 m), camp 2 (6400 m), camp 3 (7450 m), and camp 4 (7950 m). a) Compute the total energy each of the climbers had to spend for going from base camp to the summit. Provide your result in units of kilocalorie (1 kCal = 4184 J).
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 10:00
Aria drove to the store, did some shopping, and then came home. during maria's trip, when was her displacement equal to zero?
Answers: 1
Physics, 22.06.2019 17:00
How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters
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Physics, 22.06.2019 20:10
On a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 3.00 m/s.(a) what are the magnitude and direction of the velocity of the red glider after the collision? (b) is this collision elastic?
Answers: 1
1. (5 pts) (Inspired by 7.1) On May 1953, Tenzig Norgay and Edmund Hillary became the first humans t...
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