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3 years ago

Which of the following is a correct equation for total energy?

Physics

2 answers:

AlexFokin [52]3 years ago

7 0

Answer:

D is the correct answer: Total energy = Kinetic energy + potential energy

Liula [17]3 years ago

6 0

Answer:

kinetic energy + potential energy

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The Moon is much smaller than Earth but is still made of rock that you could walk on. However, you would need a spacesuit to do

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Because there is no oxygen in space and we need oxygen to function so we need the suit to incapsulate us in oxygen so we can respire and so can our skin

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2 years ago

The volume of the gas at a temperature of 50 Kelvin on this scale is closest to

8_murik_8 [283]

<span>500 cubic centimeters</span>

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3 years ago

A hydrogen atom in the n=7 state decays to the n=4 state. what is the wavelength of the photon that the hydrogen atom emits? use

frez [133]

A hydrogen atom in the n=7 state decays to the n=4 state. The wavelength of the photon that the hydrogen atom emits is 4592.59nm.

The Energy of photon is the energy possessed by a photon when it moves from a high energy level to a low energy level. It emits a photon of a certain wavelength. The following relation can be used to find out the relation between the energy levels and the energy possessed:

E = 13.6 × Z² (1/n₂² - 1/n₁²) eV

where, n₁ is the initial energy level i.e. n₁ =7

n₂ is the higher energy level i.e. n₂ = 4

E is the energy possessed

Z is the atomic number, Z = 1 for H-atom

Subsituting in above equation,

E = 13.6 (1/16 - 1/49) eV

E = 0.27 eV

We know that,

E = hc / λ

where, h is Planck constant

c is speed of light

λ is wavelength

On subsituting,

0.27 eV = 1240/ λ

⇒ λ = 4592.59 nm

Hence, the wavelength of photon emitted by Hydrogen atom is 4592.59nm.

Learn more about Energy of Photon here, brainly.com/question/2393994

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5 0

2 years ago

Which of the following forces is MOST involved in radioactive decay?

mario62 [17]

Weak nuclear force is the most involved

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3 years ago

Read 2 more answers

A straight segment of wire 35.0 cm long carrying a current of 2.60 A is in a uniform magnetic field. The segment makes an angle

den301095 [7]

Answer:

Magnetic field, B = 0.275 T

Explanation:

Given that,

Length of the wire, L = 35 cm = 0.35 m

Current carried in the wire, I = 2.6 A

The segment makes an angle of 53∘ with the direction of the magnetic field, $\theta=53^{\circ}$

Magnetic force, F = 0.2 N

To find,

The magnitude of the magnetic field.

Solution,

The magnetic force acting on the wire is given by :

$F=ILBsin\theta$

$\theta$ is the angle between the length of wire and the magnetic field.

$0.2=2.6\times 0.35\times B\times sin(53)$

B = 0.275 T

Therefore, the magnitude of the magnetic field is 0.275 T. Hence, this is the required solution.

5 0

3 years ago