Please answer the circled questions, I will give you brainliest

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Answer 1

Answer:

Answer:

yo so if nobody helps ill gladly take the brainliest

Explanation:

Related Questions

PLEASE HELP ME How is a conductor different from an insulator? Conductors have magnetic fields; insulators do not have magnetic fields. Conductors do not have magnetic fields; insulators do have magnetic fields. In a conductor, electric current can flow freely; in an insulator, it cannot flow freely. In a conductor, electric current cannot flow freely; in an insulator, it can flow freely.
When the temperature is cold, Tim's tires look under-inflated. This is because the air molecules in the tire ________ causing their kinetic energy to _________ and volume to _______..A). slow down, decrease, contract B). multiply, increase, fluctuates. C). stay the same, increase, expand. Eliminate. D). speed up, decrease, stay the same.
A 755 N diver drops from a board 10.0 m above the water’s surface. Find the mechanical energy of the system, and find the diver’s speed 5.00 m above the water’s surface. Then find the diver’s speed just before striking the water.
A block slides down a rough ramp with a 30-degree incline as shown.
The bending of wave crests as the reach shallow water is:

What is the average speed in m/s for a car that travels 28 km in exactly 12 min?

Answers

Answer:

approximately 38.89 m/s.

Explanation:

To calculate the average speed, you can use the formula:

Average Speed = Distance / Time

Given:

Distance = 28 km

Time = 12 minutes = 12/60 hours = 0.2 hours

Now, plug in the values:

Average Speed = 28 km / 0.2 hours = 140 km/h

To convert the average speed from km/h to m/s, you can use the conversion factor: 1 km = 1000 m and 1 hour = 3600 seconds.

Average Speed = (140 km/h) * (1000 m/km) / (3600 s/h) ≈ 38.89 m/s

Coal _____. is a renewable resource can easily be replenished is formed from plant remains is the least-polluting energy source

Answers

Coal . . . . .

-- is a renewable resource that can easily be replenished.
It happens by itself, and you don't even need to do anything,
but it takes several million years.

-- Is formed from plant remains, and

-- is perhaps the MOST polluting energy source.

There is only supposed to be one answer choice, so the correct answer is is formed from plant remains.

If you are going 30 miles an hour in good condition, it will take how many feet to stop .

Answers

Answer:

158400 feet per hour

Explanation:

First we find:

How many feet are in miles per hour?

Multiply your speed in miles per hour by 5,280. This is the number of feet in a mile. The result is your speed in feet per hour.

For example, 30 miles per hour times 5,280 feet per mile is 158,400 feet per hour.

Who Can Help ? Much Love If You Can .Select all that apply.
A convex lens _____.

converges light
bulges in the middle
diverges light
is thinner in the middle

Answers

Answer:

Options C and the D are the correct answer.

Explanation:

There are two types of lenses: concave lenses and convex lenses. A convex lens is thinner in the middle. On the other hand, convex lenses are also called diverging lens because after the light passes through it, the ray light spreads out. Due to this, diverges light and is thinner in the middle are the correct answer.

converges light to a focal point.

How are the types of energy in the electromagnetic spectrum defined? (Points : 3)by their atomic structure

by their color

by their amplitude

by their wavelength

Answers

The energy associated with the electromagnetic spectrum is given by the wavelength of the spectrum.

Further Explanation:

The electromagnetic waves are the waves which travel through the space and do not require any medium for their propagation. The Electromagnetic waves are the waves which are transverse in nature.

There are several waves of various wavelength and frequency present in the Electromagnetic spectrum. The different waves present in the electromagnetic spectrum are:

Gamma rays.

X-rays.

Ultraviolet rays.

Visible rays.

Infrared rays.

Micro waves.

Radio waves.

The wavelength and the frequency of the electromagnetic waves are the key properties of the wave which describe several other parameters of the waves like intensity, power, energy of the wave etc.

The energy associated with the electromagnetic radiation is given by:

$E=\frac{{hc}}{\lambda}$

Here, $E$ is the energy of the radiation, $h$ is the plank’s constant, $c$ is the speed of the light and $\lambda$ is the wavelength of the radiation.

Therefore, the above expression shows that the energy of the electromagnetic spectrum depends on the wavelength of the spectrum.

Thus, Option (d) is correct. The energy of the electromagnetic spectrum is defined by their wavelength.

Learn More:

1. What is the threshold frequency ν0 of cesium brainly.com/question/6953278

2. Calculate the wavelength of an electron (m = 9.11 × 10-28 g) moving at 3.66 × 106 m/s brainly.com/question/1979815

3. What is the kinetic energy of the emitted electrons when cesium is exposed to UV rays brainly.com/question/9059731

Answer Details:

Grade: High School

Subject: Physics

Physics: Electromagnetic spectrum

Keywords:

Electromagnetic spectrum, energy, frequency, wavelength, radiation, speed of light, defined by their wavelength, E=hc/lamda, waves, transverse nature.

The correct answer to the question is : C) By their wavelength

EXPLANATION:

Before going to answer this question, first we have to understand the electromagnetic spectrum.

An electromagnetic wave is the transverse wave which contains time varying electric field and magnetic field which are perpendicular to each other as well as perpendicular to the direction of propagation.

There are various electromagnetic waves which are named as gamma ray, X-ray, U.V ray, visible light, infrared wave, micro wave and radio waves respectively. Out of these waves, only visible light can be visualized by human eye.

Every electromagnetic wave is characterized by its wavelength. Different waves have different range of wavelength.

The electromagnetic spectrum is the the arrangement of electromagnetic waves either in ascending order of wavelength or in descending order.

The gamma ray has the minimum wavelength in the spectrum, and radio wave has the maximum wavelength.

The energy carried by electromagnetic waves having wavelength $\lambda$ is calculated as-

Energy = $(hc)/(\lambda)$

Here, c is the velocity of light and h is the Planck' s constant.

Hence, the correct answer to the question is wavelength which will signify the energy of different types of electromagnetic waves.

How much voltage would be necessary to generate 10 amps of current in a circuit that has 5 ohms ofresistance?

Answers

Voltage would be necessary to generate 10 amps of current in a circuit that has 5 ohms of resistance will be 50 V

What is ohm's law ?

Ohm's law is a law that states that the voltage across a resistor is directly proportional to the current flowing through the resistance

using ohm's law

V = IR

V = voltage in a circuit = ?

I = current = 10 A

R = Total resistance in the circuit = 5 ohm

V = IR

= 10 A * 5 ohm

= 50 V

voltage would be necessary to generate 10 amps of current in a circuit that has 5 ohms of resistance will be 50 V

learn more about ohm's law

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$U = R * I \rightarrow U = 10 * 5 = 50 V$