Each BB 0.349 grams and 5.386 grains. 349 mg & 5.386 grains each steel BBs.
Answer:
Scientists have determined that humans are disrupting the nitrogen cycle by altering the amount of nitrogen that is stored in the biosphere. The chief culprit is fossil fuel combustion, which releases nitric oxides into the air that combine with other elements to form smog and acid rain.
Answer:c
Explanation:
it is given that Adam and Boby starts from same height so their total Energy at top is
Potential Energy of Adam
Potential Energy of boby
when they fall a height h their speed at bottom will be
which will be same for both Adam and Boby
Energy at bottom
Kinetic Energy of Adam
Kinetic Energy of boby
Since velocity is same therefore kinetic Energy is same for Adam and boby
thus option c is correct
Answer:
Angular displacement of the wheel,
Explanation:
It is given that,
Angular acceleration of the wheel,
Final speed of the wheel,
Time taken, t = 4.5 s
Initially, it is required to find the initial angular velocity of the wheel. Using the first equation of rotational kinematics as :
is the initial speed of the wheel
Let is the angular displacement of each wheel during this time. Using the second equation of motion as :
So, the angular displacement of each wheel during this time is 267 radian.