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2 years ago

The slope of a velocity versus time graph gives

Physics

1 answer:

Marina86 [1]2 years ago

4 0

Explanation:

Average of acceleration

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In this lab we will make good use of [scientists] Law by inducing a current due to changes in magnetic flux. GIn this lab we wil

vesna_86 [32]

Answer:

Faraday's Law

Explanation:

Faraday’s Law of Induction explains how an electric current produces a magnetic field and also, how a changing magnetic field generates an electric current in a conductor.

While Faraday's law explains how magnitude of the EMF is produced, Lenz's law explains the direction that current will flow. The lenz's law states that the direction is always in a way which it will oppose the change in flux which produced it. Lenz's law simply explains that any magnetic field produced by an induced current will be in the opposite direction to the change in the original field.

In this lab, they are clearly making use of Faraday's law because they are inducing a current due to changes in magnetic flux. This situation involves Faraday's law because in Faraday's law, the induced magnetic field inside a loop will always move to keep the magnetic flux in the loop constant.

3 0

3 years ago

If your water heat has an efficiency of 95 percent, how much energy would it take to heat 45kg of water from 23 C to 60 C. (The

Westkost [7]

Answer: 6611.715 joules

Explanation:

Q = MxCxdeltaT = 6959.7 which is 100%

95% = 6611.715

6 0

2 years ago

Why does fluid pressure exist?

zubka84 [21]

Answer:

Fluid pressure from gravity is the weight of the fluid above divided by the area it is pushing on. Fluid pressure applies in all directions. Internal pressure of an object equals the external fluid pressure, otherwise the object could be crushed. Wind and heating can also create pressure.

Explanation:

4 0

2 years ago

Read 2 more answers

A thin, rectangular sheet of metal has mass M and sides of length a and b. Find the moment of inertia of this sheet about an axi

Lubov Fominskaja [6]

Answer:

The moment of inertia is $I=\frac{M}{12} a^{2}$

Explanation:

The moment of inertia is equal:

$I=\int\limits^a_b {r^{2} } \, dm$

If r is $-\frac{a}{2}$

and $dm=\frac{M}{a} dr$

$I=\int\limits^a_b {r^{2}\frac{M}{a} } \, dr\\a=\frac{a}{2} \\b=-\frac{a}{2}$

$I=\frac{M}{a} \int\limits^a_b {r^{2} } \, dr\\\\I=\frac{M}{a} (\frac{M}{3} )_{b}^{a}\\ I=\frac{M}{3a} (\frac{a^{3} }{8} +\frac{a^{3} }{8} )\\I=\frac{M}{12} a^{2}$

7 0

3 years ago

At what angle of projectile range of maximum

Agata [3.3K]

Answer:

$45°$

Explanation:

The textbooks say that the maximum range for projectile motion (with no air resistance) is 45 degrees.

7 0

3 years ago