Answer:
mass-to-light ratio is the ratio of the mass of a body and the light output it has. it is represented by in terms of a single number and and tells us about the kind of stars making up the most luminous population in a galaxy. the mass-to-ratio of stars is greater than 1, for dark matter is 100 times high and very low for dust. higher mass-to-ratio mean that in a galaxy on average every solar mass emits a light less than the sun of the earth solar system does.
the large mass-to-light ratio shows that gas and dust is being analyzed.
Answer:
The electrical energy consumed by a toaster is 0.033 Kwh.
Explanation:
The power utilized by the toaster is 400 W.
The toaster is operated for 5 Minutes.
We know that,
Substitute the values in the above formula to obtain electrical energy,
Electrical energy = 0.4 × 0.083
Electrical energy is 0.033 Kwh.
Answer:
Explanation:
(1) I= 1.5W/240V =6.25mA
(2) Energy= (1.5J/s)×(2×60×60 s)=10.8 KJ
Answer:
The mass of the disk is 0.7179 kg.
Explanation:
Given that,
Radius = 0.453 m
Tangential force = 0.221 N
Angular acceleration = 0.111 rad/s²
We need to calculate the moment of inertia of both the disk and ring
Using formula of moment of inertia
For disk,
For ring,
The net moment of inertia
We need to calculate the torque
Using formula of torque
Put the value into the formula
Hence, The mass of the disk is 0.7179 kg.
Answer:
Acceleration (a) is the change in velocity (Δv) over the change in time (Δt), represented by the equation a = Δv/Δt. This allows you to measure how fast velocity changes in meters per second squared (m/s^2).
Explanation: