Answer:
70m/s²
Explanation:
we will use the first equation of Dalton to find it
Yes, friction does exist in space. Friction has nothing to do with the earth's atmosphere. It exists everywhere in the universe. <span />
Answer:
Visible waves can be seen by people.
Explanation:
Electromagnetic waves comprises of different kind of waves. It consists of cosmic waves, x-rays waves, gamma waves, ultra violet waves, visible waves, infrared waves, microwaves. Among these waves, depending upon the wavelength of each kind of waves, it is visible and invisible to naked eyes. Thus, visible waves are the one which can be seen by people in naked eyes. As the wavelength of these waves are in comparable to the eye sight, so it can be seen by people.
Answer:
Explanation:
Expression for emf induced = 1 /2 B n r²ω where B is magnetic field , r is radius of the coil and ω is angular velocity of rotation , n is no of turn .
ω = 2πf = 2π x 60 = 120 π ; where f is frequency of rotation .
emf induced = 1 /2 B r²x 120π x n
Putting the given values
10000 = .5 x B x .11² x 120 x 3.14 x 506
B = 8.67 T .
Answer:
26.6 cm
Explanation:
We are given that
Spring constant=23.6 N/m
Force exert=6.28 N
We have to find the displacement.
We know that Hooke's law
Where k= Spring constant
x=Displacement
Using the formula
Then, we get
We know that 1 m=100 cm
Hence, the displacement =26.6 cm
