Answer:
5 N
Explanation:
The formula that you've to use to find the force is :
Force = Mass × Acceleration
They have already given that,
m = 2.5 kg
a = 2 ms⁻²
Let us find now.
F = m a
F = 2.5 kg × 2 ms⁻²
F = 5 N
Hope this helps you :-)
Let me know if you have any other questions :-)
Answer: n=4
Explanation:
We have the following expression for the volume flow rate 
of a hypodermic needle:
(1)
Where the dimensions of each one is:
Volume flow rate 
Radius of the needle 
Length of the needle 
Pressures at opposite ends of the needle 
and 
Viscosity of the liquid 
We need to find the value of 
whicha has no dimensions, and in order to do this, we have to rewritte (1) with its dimensions:
(2)
We need the right side of the equation to be equal to the left side of the equation (in dimensions):
(3)
(4)
As we can see must be 4 if we want the exponent to be 3:
(5)
Finally:
(6)
We use them to survive, such as for oxygen, food, and shelter.
Answer:
The last one
1m = 100 cm
Explanation:
If you do not trust me look it up
1.t
2.f
3.f
4.t
5.t
6.t
7.f
8.f
9.t
10.t
11.f
12.t
13.t
14.f
15.t
16.f
17.t
18.t
19.f
20.t
21.f
22.t
23.f
24t
