Mathematics, 19.11.2020 01:00 moon3194
Answer all of them. ILL GIVE BRAINIEST.
Determine whether the objects in the following problems have kinetic or potential energy (if potential specify either elastic or gravitational) and then calculate it.
Formula
KE = 12 mv2 KE = (0.5)(mass)(velocity2)
PEgrav = mgh PEgrav = (mass)(9.8 m/s2)(height)
PEElastic = 12 kx2 PEElastic = (0.5)(spring constant)(how far object is stretched/compressed)
Questions:
1. A baby carriage is sitting on top of a hill that is 12 meter high. The carriage with baby has a mass of 2.2 kg.
Potential
2. A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg.
Kenetic
3. Mr. Hearth is launched from a cannon at a speed of 30 m/s and his mass is 74 kg.
Kenetic
4. A cat is stuck in a tree. The cat weighs 14.7 Newtons. The tree is 10 meters high.
Potential
Answers: 3
Mathematics, 20.06.2019 18:04, chloegirl9796
Acontractor needs 54 square feet of brick to construct a rectangular walkway. the length of the walkway is 15 feet more than the width. write an equation that could be used to determine the dimensions of the walkway. solve this equation to find the length and width, in feet, of the walkway.
Answers: 1
Mathematics, 21.06.2019 23:10, kleighlamb4850
Which best describes the function on the graph? direct variation; k = −2 direct variation; k = -1/2 inverse variation; k = −2 inverse variation; k = -1/2
Answers: 2
Answer all of them. ILL GIVE BRAINIEST.
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