It was about 9:30 p.m. sorry if the answer is wrong
Answer:
11.4 m/s
Explanation:
The expression for the Centripetal acceleration is :
![a=\frac{v^2}{R}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bv%5E2%7D%7BR%7D)
Where, a is the accleration
v is the velocity around circumference of circle
R is radius of circle
In the given question,
a = g = Acceleration due to gravity as the car is at top = ![9.81\ m/s^2](https://tex.z-dn.net/?f=9.81%5C%20m%2Fs%5E2)
v = ?
R = 13.2 m
So,
![9.81=\frac{v^2}{13.2}](https://tex.z-dn.net/?f=9.81%3D%5Cfrac%7Bv%5E2%7D%7B13.2%7D)
![v^2=9.81\times {13.2}](https://tex.z-dn.net/?f=v%5E2%3D9.81%5Ctimes%20%7B13.2%7D)
<u>v = 11.4 m/s</u>
Hi there!
Recall the equation for centripetal force:
![F_c = \frac{mv^2}{r}](https://tex.z-dn.net/?f=F_c%20%3D%20%5Cfrac%7Bmv%5E2%7D%7Br%7D)
We can rearrange the equation to solve for 'r'.
Multiply both sides by r:
![r * F_c = mv^2](https://tex.z-dn.net/?f=r%20%2A%20F_c%20%3D%20mv%5E2)
Divide both sides by Fc:
![\boxed{ r= \frac{mv^2}{F_c}}](https://tex.z-dn.net/?f=%5Cboxed%7B%20r%3D%20%5Cfrac%7Bmv%5E2%7D%7BF_c%7D%7D)
Answer:
The nervous and endocrine systems exert the ultimate control over homeostasis because they coordinate the functions of the body's systems.
Explanation:
Answer:
<h2>8.78 Amps</h2>
Explanation:
Given data:
power rating of the heater P= 1010 W
voltage of the heater V= 115 volts
current taken by the heater I= ?
We can apply the power formula to solve for the current in the heater
i.e P= IV
Making I the current subject of formula we have
I= P/V
Substituting our given data into the expression for I we have
I=1010/115= 8.78 A
<h2 /><h2><em>Hence the current when the unit/heater is operating is 8.78 Amp</em></h2>