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3 years ago

Which circuit would have the most electrical power?

Physics

1 answer:

NNADVOKAT [17]3 years ago

5 0

Answer: D

Explanation:

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The point inside the earth where the energy release occurs

Wittaler [7]

epicenter is the answer

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3 years ago

A circular loop (radius of 20 cm) is in a uniform magnetic field of 0.15 T. What angle(s) between the normal to the plane of the

Wittaler [7]

Answer:

The angle other than 90 degrees would result in magnetic flux of non zero magnitude.

Explanation:

The magnetic flux through a given closed area is equal to $\underset{B}{\rightarrow}.\underset{A}{\rightarrow}$ .

Where $\underset{B}{\rightarrow}$ is the magnitude of magnetic flux through loop .

$\underset{A}{\rightarrow}$ is the area vector of the given loop .

We know that $\underset{B}{\rightarrow}.\underset{A}{\rightarrow}$ = $\left | A \right |\left | B \right |\cos \theta$ ,

Where $\theta$ is the angle made by magnetic field with area vector.

Area vector of a closed loop is always normal to the plane of the loop .

So from above equation we can deduce that

$\theta = \cos^{-1}\frac{\phi }{\left | A \right |\left | B \right |}$

$\phi$ is the magnitude of magnetic flux which is non zero when $\theta$ not equal to 90 degrees.

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3 years ago

Which statement correctly describes the difference between an atom and a molecule

Alisiya [41]

Answer:

In a molecule, atoms are bonded together by single, double, or triple bonds. An atom has a nucleus surrounded by electrons.

Explanation:

3 0

3 years ago

An object is launched from the top of a building which is 100 m tall (relative to the ground) at a speed of 22 m/s at an angle o

klio [65]

Answer:

$3.58\:\mathrm{s}$

Explanation:

We can use the kinematics equation $\Delta y=v_it+\frac{1}{2}at^2$ to solve this problem. To find the initial vertical velocity, find the vertical component of the object's initial velocity using basic trigonometry for right triangles:

$\sin28^{\circ}=\frac{y}{22},\\y=22\sin28^{\circ}=10.3283743813\:\mathrm{m/s}$

Now we can substitute values in our kinematics equation:

$\Delta y=-100$
$a=-9.8\:\mathrm{m/s^2}$ (acceleration due to gravity)
$v_i=-10.3283743813\:\mathrm{m/s}$
Solving for $t$

$-100=-10.3283743813t+\frac{1}{2}\cdot -9.8\cdot t^2,\\\\-4.9t^2-10.3283743813t+100=0,\\\\\boxed{t=3.5849312673637455}, t=-5.692762773751501\:\text{(Extraneous)}$

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3 years ago

A solution with a pH of 2.0 is

olya-2409 [2.1K]

a solution with a pH of 2.0 is strongly acidic

4 0

4 years ago