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Square root of (4^2 + 4^2) = 4*squareRoot(2)
Answer:
its good no need to change anything :))
Answer:
Yes, the battery's store of chemical potential energy will have decreased. Work is done on the positive charge in moving that charge to the battery's positive terminal. Chemical potential energy is converted into electrostatic potential energy in pushing the positive charge up a voltage gradient. Hope this helps!
Explanation:
Answer:
A.) 4 revolution
B.) 0.2 revolution
C.) 4 seconds
D.) 2.75 m/s
Explanation:
Given that a merry-go-round a.k.a "the spinny thing" is rotating at 15 RPM, and has a radius of 1.75 m
Solution
1 revolution = 2πr
Where r = 1.75m
A. How many revolutions will it make in 3 minutes?
(2π × 1.75) / 3
10.9955 / 3
3.665 RPM
Number of revolution = 15 / 3.665
Number of revolution = 4 revolution
B. How many revolutions will it make in 10.0 seconds?
First convert 10 seconds to minutes
10/60 = 0.167 minute
(2π × 1.75) / 0.167
10.9955 / 0.167
65.973
Number of revolution = 15 / 65.973
Number of revolution = 0.2 revolution
C. How long does it take for a person to make 1 complete revolution?
15 = 1 / t
Make t the subject of formula
t = 1/15
t = 0.0667 minute
t = 4 seconds
D. What is the velocity in m/s of person standing on its edge?
Velocity in m/ s will be:
Velocity = (15 × 2pi × r) / 60
Velocity = 164.9334 / 60
Velocity = 2.75 m/s
Answer:
B. 832 m/s
Explanation:
(1/2) (0.015) v^2 = (3/2) (1.5) (8.31) (278)
0.0075 v^2 = 5197.905
v^2 = 693054
v = 832.49