60 Miles per hour 60 times 2 is 120
<span>C) B ⃗ = A ⃗ + C ⃗ Look at the direction the arrows (vectors).</span>
Answer:
The temperature and volume of a gas are directly proportional when pressure is constant.
Explanation:
Charles's Law was proposed by a French chemist, Jacques Charles. The law states that "The volume of a fixed mass of a gas varies directly as its absolute temperature if the pressure is constant".
The law shows the relationship between volume and temperature at a constant temperature. It is mathematically expressed as:
V∝T(P,n constant)
Answer:
Explanation:
change in momentum = m ( v - u ) ; m is mass , V is final velocity and u is initial velocity .
= 250 ( 28 - 6 )
= 5500. N.s
for calculating magnitude of force we shall apply the concept of impulse
Impulse = F X t = m( v-u ) ; F is force applied for time t .
F x 60 = 5500
F = 91.67 N .
force exerted = 91.67 N .
The answer they are looking for is the last one. However the last two are technically correct but the third one would result in negative work.
