Answer:constant cause it keeps happening Or it might be decreasing but I’m not sure
speed increases with temp maybe
Answer:
The velocity at the nozzle at inlet
= 3584 
Explanation:
Pressure at inlet
= 1 ×
Pa
Temperature at inlet
= 518 ° c = 791 K
Mass flow rate =
= 88.7
Gas constant for carbon die oxide is R = 189 
Mass flow rate inside the nozzle is given by the formula =
×
×
⇒
= = 1 ×
Pa
⇒ R
= 791 × 189 = 149499 
⇒
= 0.0037 
Put all the above values in above formula we get,
⇒ 88.7 =
× 0.0037 × 
⇒
= 3584 
This is the velocity at the nozzle at inlet.
Answer:
resultant force = (f1²+f2²)½
=(1.5²+2²)½
=(2.25+4)½
=(6.25)½
=2.5
Explanation:
okay this question seems easy. now if the 1.5 is vertically upwards so is that 2 is horizontally downwards hence as u say its 90 degrees thn it forms a right angled triangle.
Answer:
0.0312J
Explanation:
Let x be the distance the staple moves:

And spring constant is 

Hence, the potential energy is 0.0312J