Answer:
A) 7500[N]
Explanation:
This is a problem where we have to apply the pascal principle, in this case replace the given values in the given equation:
F1 = 2500 [N]
A1 = 0.06 [m^2]
A2 = 0.18 [m^2]
<span>1.5 minutes per rotation.
The formula for centripetal force is
A = v^2/r
where
A = acceleration
v = velocity
r = radius
So let's substitute the known values and solve for v. So
F = v^2/r
0.98 m/s^2 = v^2/200 m
196 m^2/s^2 = v^2
14 m/s = v
So we need a velocity of 14 m/s. Let's calculate how fast the station needs to spin.
Its circumference is 2*pi*r, so
C = 2 * 3.14159 * 200 m
C = 1256.636 m
And we need a velocity of 14 m/s, so
1256.636 m / 14 m/s = 89.75971429 s
Rounding to 2 significant digits gives us a rotational period of 90 seconds, or 1.5 minutes.</span>
Nuclear<span> fusion occurs in the core area or center of the Sun. Here, temperatures are around 15,000,000°C. Gravity pulls all of the mass of the Sun inwards, creating pressure so intense that </span>nuclear<span> reactions take place. The nuclei of hydrogen atoms smash together and fuse to form larger atoms such as helium nuclei. Hope this helps!! :) </span>
Answer:
a. -2.07 m/sc^2
b. 9.204
c. 4.25 seconds
Explanation:
a. The computation of puck's acceleration is shown below:-
38.44 - 225 = 90a
= -2.07 m/sc^2
b. The computation of velocity is shown below:-
= 15 - (2.07) × 2.80
= 9.204
c. The computation of long which take to travel is shown below:-
= (v - u) ÷ a
= (6.2 - 15) ÷ (-2.07)
= 4.25 seconds
We simply applied the above formulas so that the correct answers could be come