The correct answer is 99.06 .
Since we know that,
1 ft = 12 inches, (1ft)3 = (12)3inches3
& 1 inch = 2.54 cm , (1 inch)3 = (2.54)3cm3
& 1 cm3 = 1ml,
&(1 ml)/1000 = 1L, so (1cm3)/1000 = 1L.
& 1 min. = 60 sec.
Now, 1ft3 = (12)3x(2.54)3/(1000) L
and 1 min = 60 sec
So, 1ft3/min = (12)^3x(2.54)^3/(1000)x(60) L/s
Hence 210 ft3/min = 210x(12^)3x(2.54)^3/(1000)x(60).
= 99.06.
Learn more about rate of the vacuum's air flow here :-
brainly.com/question/24641042
#SPJ4
#1 is sand dune , #2 glaciers , #3 sand sediments hence small mass and #4 is <span> moraine .</span>
A, B, and C are all incorrect because they are talking about springs. I'm assuming you're talking about a 2 dimensional, side to side pendulum. In that case, the answer is D because as the pendulum goes up from one side, gravity accelerates it downward until it swings to the other side. If you're not talking about this type of pendulum, leave a comment and ill come back.
Answer: a) 42Nm b) 8.4m/s
Explanation:
Impulse is defined as object change in momentum.
Since Force = mass × acceleration
F = ma
Acceleration is the rate of change in velocity.
F = m(v-u)/t
Cross multiply
Ft = m(v-u)
Since impulse = Ft
and Ft = m(v-u)... (1)
The object change in velocity (v-u) = Ft/m from eqn 1
Going to the question;
a) Impulse = Force (F) × time(t)
Given force = 14N and time = 3seconds
Impulse = 14×3
Impulse = 42Nm
b) The object change in velocity (v-u) = Ft/m where mass = 5kg
v-u = 14×3/5
Change in velocity = 42/5 = 8.4m/s
