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2 years ago

Which wave a or b has lower energy

Physics

2 answers:

Nina [5.8K]2 years ago

8 0

Answer:

Explanation:

i took the test

bixtya [17]2 years ago

3 0

Answer:

Can u attach an image please

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A 10-turn conducting loop with a radius of 3.0 cm spins at 60 revolutions per second in a magnetic field of 0.50T. The maximum e

bogdanovich [222]

Answer:

Maximum emf = 5.32 V

Explanation:

Given that,

Number of turns, N = 10

Radius of loop, r = 3 cm = 0.03 m

It made 60 revolutions per second

Magnetic field, B = 0.5 T

We need to find maximum emf generated in the loop. It is based on the concept of Faraday's law. The induced emf is given by :

$\epsilon=\dfrac{d(NBA\cos\theta)}{dt}\\\\\epsilon=NBA\dfrac{d(\cos\theta)}{dt}\\\\\epsilon=NBA\omega \sin\omega t\\\\\epsilon=NB\pi r^2\omega \sin\omega t$

For maximum emf, $\sin\omega t=1$

So,

$\epsilon=NB\pi r^2\omega \\\\\epsilon=NB\pi r^2\times 2\pi f\\\\\epsilon=10\times 0.5\times \pi (0.03)^2\times 2\pi \times 60\\\\\epsilon=5.32\ V$

So, the maximum emf generated in the loop is 5.32 V.

3 0

2 years ago

Blood flows through an artery that is partially blocked. As the blood moves from the wider region into the narrow region, the bl

Zarrin [17]

Answer:

decreases

Explanation:

The speed of blood decreases but the blood pressure increases as there is no large way to the blood to travel.

6 0

1 year ago

Children slide down a frictionless water slide that ends at a height of 1.80 m above the pool. If a child starts from rest at po

Lerok [7]

Answer:

$h = 1.75 m$

Explanation:

As we know that height of the slide is given as

$h = 1.80 m$

so time taken by the child to hit the water from the slide is given as

$t = \sqrt{\frac{2h}{g}}$

now we will plug all data in it

$t = \sqrt{\frac{2(1.80)}{9.81}}$

$t = 0.605 s$

now we know that the horizontal distance moved by it is given as

$L = v_x t$

$3.55 = 0.605 v_x$

$v_x = 5.86 m/s$

now by energy conservation

$mgh = \frac{1}{2}mv^2$

so height of point A is given as

$h = \frac{v_x^2}{2g}$

$h = \frac{5.86^2}{2(9.81)}$

$h = 1.75 m$

3 0

2 years ago

Are there any steps of the rock cycle that do not connect directly to one another

dybincka [34]

Answer:

The three main rock types are igneous, metamorphic and sedimentary.

The three processes that change one rock to another are crystallization, metamorphism, and erosion and sedimentation.

Any rock can transform into any other rock by passing through one or more of these processes. This creates the rock cycle.

6 0

2 years ago

A square solar collector measures 6.00 m by 6.00 m and another solar collector measures 8.000 m by 8.000 m. using the correct nu

Vlad1618 [11]

Answer: $1.000\times 10^2m^2$

Explanation:

Significant figures : The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

The rule apply for the multiplication and division is :

The least precise number present determines the number of significant figures in the answer.

The rule apply for the addition and subtraction is :

The least precise number present after the decimal point determines the number of significant figures in the answer.

Area of square collector 1 =

Area of square collector 1 = $6.00m\times 6.00m=36.0m^2$