Better picture.. please .......
Answer:
<em> B.0</em>
Explanation:
Change in momentum: This is defined as the product of mass and change in velocity of a body. or it can be defined as the product of force and time of a body. The fundamental unit of change in momentum is kg.m/s
Change in momentum = M(V-U)......................... Equation 1
where M = mass of the ball, V = final velocity of the ball, U = initial velocity of the ball.
Let: M = m kg and V = U = v m/s
Substituting these values into equation 1
Change in momentum = m(v-v)
Change in momentum = m(0)
Change in momentum = 0 kg.m/s
<em>Therefore the momentum of the ball has not changed.</em>
<em>The right option is B.0</em>
Answer:
The weight of the tank when it is empty is 501.38 lbf
Explanation:
The velocity of outlet is equal to:
Where
vi = 24 ft/s
di = 6 in = 0.5 ft
do = 6 in = 0.5 ft
The total weight of the water excluding the tank weight is equal to:
p = 62.43 lb/ft³
dtank = 20 in = 1.67 ft
Replacing:
The weight of the tank is:
Wtank = 585 - 83.62 = 501.38 lbf
Answer: 36 Kg
Explanation:
Ke= 1/2MV^2
Plug in the kinectic energy (3042 J) and solve for M.
3042= 1/2 (M) (13^2)
M= 36 Kg
Answer:
C
Explanation:
light can travel in a vacuum Anne the sped varies
