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3 years ago

What two motions do all planets have?

Physics

2 answers:

mixas84 [53]3 years ago

5 0

Answer:

The two planetary movements are revolution and rotation.

Explanation:

In the vast solar system, planets traverse while also remaining fixated within the system because of gravity. Each planet is unique and so is its movement, but, at the same time, there are two common types of movements.

algol [13]3 years ago

5 0

Answer: revolution and rotation plz mark as brainliest

Explanation:

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What is the wavelength of a light ray that has a frequency of 7.4 E12 Hz?

const2013 [10]

The wavelength of the light ray with the given frequency is 4.05 × 10⁴nm.

Given the data in the question;

Frequency of the light ray; $f = 7.4 * 10^{12}Hz$

Wavelength; $\lambda = \ ?$

<h3>Wavelength</h3>

Wavelength can be simply defined as the spatial period of a periodic wave. When the shapes of waves are repeated, the distance over which they are repeated is called wavelength. Wavelength is expressed as;

$\lambda = \frac{c}{f}$

Where $\lambda$ is wavelength, f is frequency and c is speed of light( $c = 3*10^8m/s$ )

We substitute our values into the expression above to determine the wavelength of the light ray.

$\lambda = \frac{c}{f} \\\\\lambda = \frac{3*10^8m/s}{7.4*10^{12}s^{-1}}} \\\\\lambda = \frac{3*10^8ms/s}{7.4*10^{12}}}\\\\\lambda = 4.05*10^{-5}m\\\\\lambda = 4.05*10^{4}nm$

Therefore, the wavelength of the light ray with the given frequency is 4.05 × 10⁴nm.

Learn more about wavelength: brainly.com/question/16776907

5 0

3 years ago

What is the force exerted on a charge of 2. 5 µC moving perpendicular through a magnetic field of 3. 0 × 102 T with a velocity o

stira [4]

The force acting on a moving charge is known as the magnetic force. The force acting on the charge will be 3.75 N.

<h3>What is the force exerted on the charge?</h3>

Magnetic fields only exert a force on a moving electric charge. A moving charge generates a magnetic field. With an increase in charge and magnetic field strength, this force rises.

when charges have higher velocities, the force is stronger. However, the magnetic force is always perpendicular to the velocity.

Mathematically the force exerted on the charge will be

F=qvBsinα

F= force acting on the charge

v = velocity of charge

q = charge

F=qvBsinα

F=2.5×10⁻⁶×5.0×10³×3.0×10²

F=37.5 N

Hence The force acting on the charge will be 3.75 N.

To learn more about the force acting on charge refer to ;

brainly.com/question/451411

F = q V B sinα

Where F is the force applied to a moving charge.

V = charge velocity

q stands for charge.

α = angle between V and B directions

As a result, the moving charge is subjected to a force of 3.75 Newton.

3 0

2 years ago

A current of 9 A flows through an electric device with a resistance of 43 Ω. What must be the applied voltage in this particular

NeTakaya

Answer:
387 volts

Explanation:
Ohm's law is used to relate voltage, current and resistance.
The formula is as follows:V = I * R
where:
V is the applied voltage (measured in volts)
I is the current flowing (measured in amperes)
R is the resistance (measured in ohm)

In the given, we have:
current (I) = 9 amperes
resistance (R) = 43 ohm

Substitute with the givens in the above formula to get the voltage as follows:
V = 9 * 43
V = 387 volts

Hope this helps :)

4 0

3 years ago

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a rocket lift off the surface of earth with a constant acceleration of 20 m/sec^2 .how fast will the rocket be going 1 min latte

vladimir1956 [14]

A = v1-v0/t so v1= a*t (v0 is o m/s) v1=
20m/s * 60 s = 1200 m/s

4 0

3 years ago

Read 2 more answers

What type of front occurs when cold air and warm air are next to each other but are at a standstill

Korvikt [17]

Answer: