Select all statements that are true about electric potential (voltage). Group of answer choices it's a vector it depends on the
source and not a subject or test charge it can be positive, negative, or zero only changes in the electric potential are physically meaningful it is equal to the electric potential energy a conductor in electrostatic equilibrium has the same voltage throughout the interior and surface it always increases as you move away from any charged object
1 answer:
Answer:
See explaination
Explanation:
a) The alternate hypothesis for the study is:
H1: There is a significant difference between mean grade of male and female students.
b) The null hypothesis is:
H0: There is no significant difference between mean grade of male and female students.
c) The Level of Significance is 0.05
d) The computed t critical value for the study is 0.632
e) The P-value of the test is 0.531
f) Conclusion: The p-value of t test is greater than 0.05. Hence we accept null hypothesis at 5% level of significance and conclude that there is no significant difference between mean grade of male and female students
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Explanation:
The given data is as follows.
Angular velocity () = 2.23 rps
Distance from the center (R) = 0.379 m
First, we will convert revolutions per second into radian per second as follows.
= 2.23 revolutions per second
=
= 14.01 rad/s
Now, tangential speed will be calculated as follows.
Tangential speed, v =
= 0.379 x 14.01
= 5.31 m/s
Thus, we can conclude that the tack's tangential speed is 5.31 m/s.