Answer: C
Mass times its velocity
Explanation:
Momentum is a measurement of a stability of the system . When momentum is higher system is stable. Ex : Motion of a bullet when its velocity become less its get fallen
Momentum =Mass * Velocity
It's a vector and it's direction is same as velocity direction .
Answer:
B. A magnet being moved into or out of the coil
Explanation:
Faraday law of electromagnetic induction states that when there is change in flux , an emf is produced . Among the given instances , only in case of B , flux is changing . So current will be induced in the coil . We shall see how it takes place .
A wire carrying constant current will produce magnetic flux in nearby coil but there is no change in flux because current as well as position of wire with respect to coil are not changing .
Passing of magnetic field through a stationary coil produces flux in the coil but here too there is no change in flux so no current will be induced .
A magnet positioned near a coil creates magnetic flux in the coil but the magnitude of flux remains constant so no change in flux and no creation of induced current .
Answer:
I don't really know much about the whole stars thing, but I've written a lot of paragraphs in science
Explanation:
Remember:
- A paragraph should be in CER formation: Claim (hypothesis/discovery), Evidence, and Reasoning
- Your reasoning should never start with I believe or I think, your reasoning and evidence are 100% fact based
- The actual hypothesis should only be 1-2 sentences and be straight to the point
Include:
- for your hypothesis, keywords relating to your subject, I'm assuming for your topic you should include things like marking, telescope, stars, etc.
- why you believe your hypothesis is true
- so use prior knowledge to justify your hypothesis
Answer:
a ceiling fan a ceiling fan