Danny is competing in the high jump.
When he is in the air, his body has energy due to...
Physics, 15.04.2020 21:21 RealStephani
Danny is competing in the high jump.
When he is in the air, his body has energy due to its height, and it has energy due to its motion.
A.
thermal; chemical
B.
chemical; kinetic
C.
thermal; potential
D.
potential; kinetic
Answers: 2
Physics, 22.06.2019 11:10
Assume this car is driven off a cliff . how many arrows of force need to be drawn in the free body diagram? assume no air resistance -five -one -three -four
Answers: 1
Physics, 22.06.2019 12:30
Consider a 1000 w iron whose base plate is made of 0.5 cm thick aluminum alloy 2024-t6 (ρ = 2770 kg/m3 and cp = 875 j/kg°c). the base plate has a surface area of 0.03 m2. initially, the iron is in thermal equilibrium with the ambient air at 22°c. assuming 90% of the heat generated in the resistance wires is transferred to the plate, determine the minimum time needed for the plate temperature to reach 200°c.
Answers: 1
Physics, 22.06.2019 12:50
Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i.e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i.e. include the distance traveled to the first encounter)
Answers: 2
Chemistry, 28.09.2020 01:01
Mathematics, 28.09.2020 01:01
Mathematics, 28.09.2020 01:01
History, 28.09.2020 01:01
English, 28.09.2020 01:01
Mathematics, 28.09.2020 01:01
Computers and Technology, 28.09.2020 01:01
Biology, 28.09.2020 01:01
Mathematics, 28.09.2020 01:01