Answer:
43.2 N
Explanation:
= Wavelength = 0.75 m
f = Frequency = 40 Hz
m = Mass of string = 0.12 kg
L = Length of string = 2.5 m
= Linear density =
Velocity of wave is given by
The tension in string is given by
The tension in the string is 43.2 N
Incomplete question as many data is missing.I have assumed value of charge and electric field.The complete question is here
A charge of 28 nC is placed in a uniform electric field that is directed vertically upward and that has a magnitude of 5.00×10⁴ V/m.
What work is done by the electric force when the charge moves a distance of 2.70 m at an angle of 45.0 degrees downward from the horizontal?
Answer:
Explanation:
Given data
Charge q=28 nC
Electric field E=5.00×10⁴ V/m.
Distance d=2.70 m
Angle α=45°
To find
Work done by electric force
Solution
Answer:
98,000 pa
Explanation:
The formula for water pressure is as follows:
Where <em>p </em>is the density of water (in kg/m3), <em>g </em>is the gravitational field strength, and <em>h </em>is the height of the water.
The density of water is 1000kg/m3, the gravitational field strength is 9.8, and the height is 10. Substituting in these values:
Time period of any moon of Jupiter is given by
from above formula we can say that mass of Jupiter is given by
now for part a)
T = 1.77 day = 152928 seconds
now by above formula
Part B)
T = 3.55 day = 306720 seconds
now by above formula
Part c)
T = 7.16 day = 618624 seconds
now by above formula
PART D)
T = 16.7 day = 1442880 seconds
now by above formula