To solve this problem it is necessary to apply the concepts related to stress failure, stress and last module Young.
Critical stress by definition is given as,
Where,
Strain fracture toughness
Y = Young's module
a = Length surface crack
Our values are given as,
Replacing in our previous equation we have,
Therefore the critical stress is 984.77Mpa
Answer:
Trish
Explanation:
the work done by each girl in throwing the ball is equal to the kinetic energy acquired by the ball. The ball thrown by Jamie has for sure more kinetic energy than the ball thrown by Trish, since it travels for a longer distance (25 m against 15 m), therefore this means that Jamie did more work than Trish in throwing the ball.
The answer is A.
t = ( 2h / g )^1/2 = ( 2 x 6.4 / 9.8 )^1/2 = 1.14s
Biomass and wood fuels generate combustion waste product of ash and GREEN HOUSE GASES.
Greenhouse gases refers to those gases that absorb infra red radiations, thus bring about the phenomenon of greenhouse effect. Greenhouse gases are released when biomass and wood fuels are burn and they lead to the warming up of the earth surface. Examples of greenhouse gases are chlorofluorocarbon and carbon dioxide.
5. what is the law called that states objects in motion must stay in motion/objects at rest will stay at rest?