Answer:
A. Is the correct answer. I just took the test.
Explanation:
Cosmic background radiation is the energy left over from the big bang and it's everywhere we look so if we consider ourselves the center, no matter which way we look we see this cosmic background radiation which is left over energy from the big bang.
b. False
The statement ‘The Biot-Savart force law does not apply if the velocity is parallel to the field direction’ is true. The answer is letter A. Any electron moving in a conductor will produce a magnetic fiels around the flow. this is the fundamental of Biot – Savart law.
Answer:
Explanation:
According to the conservation of momentum, when the external torque is not applied on the system, then the angular momentum of the system is conserved.
I x ω = constant
where, I is the moment if inertia and ω is the angular velocity
As the star is collapsed, the radius decreases and hence the moment of inertia also decreases.
According to the law, the angular velocity increases, thus the rate of spinning increases.
A. Displacement
O B. Time
C. Acceleration
D. Average speed
To calculate velocity in Physics, the two necessary measurements are displacement and time. Velocity is the speed in a specified direction, determined by dividing displacement by time.
In the field of Physics, the two measurements needed to calculate the velocity of an object are displacement and time. Velocity refers to the speed in a given direction and is calculated by dividing displacement (which gives direction information and distance) by the time it takes to move that distance. For example, if an object traveled 100 meters to the north in 20 seconds, the velocity would be 5 meters per second towards the north.
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parallel structure
dangling participle
none of these
Answer:
dangling participle
Explanation: