All categories

3 years ago

HEEEEELLLLLLLLLLLLLLLLPPPPPPPPPPPPPPP i need to get unstuck

Physics

2 answers:

pochemuha3 years ago

8 0

Geyshbdgsggefsgahevayagvdvdgavd

guapka [62]3 years ago

4 0

Answer:

say lesssssss

Explanation:

You might be interested in

What is the formula for calcium chloride

Naddik [55]

The correct answer is - CaCl2

The calcium chloride is a salt, an inorganic compound. Its formula is CaCl2, with Ca being calcium, Cl being chloride, and the number 2 representing the number of chloride molecules.

The calcium chloride is a white colored crystalline solid when it is at room temperature, and it is highly soluble in water, acetone, and acetic acid. It has a molar mass of 110.98 g/mol, density of 2.15 g/cm³, and melting point at 772 °C.

6 0

3 years ago

Read 2 more answers

a straight, 2.5-m wire carries a typical household current of 1.5 a (in one direction) at location where the earth's magnetic fi

kotykmax [81]

Answer:

The magnitude of the force is $F=2.1*10^{-4}N$

The direction is from south to north i.e upward

The magnitude of the force is $F=2.1*10^{-4}N$

The direction is towards the west

The magnitude of the force is $F=2.1*10^{-4}N$

the direction of the magnetic field is parallel to the direction of the current (south to north ) hence the direction in 0 in comparison to the direction of the current

From the value of force we got the answer to this question is No

Explanation:

Generally magnetic force is mathematically represented as

$F = BIL$

Where the B is the magnitude of the magnetic field which is given as

$B= 0.55 guass = \frac{0.55}{10000} = 0.55 *10^{-4}T$

$I$ is the current with a value of $I = 1.5A$

L is the length of the wire given as $L =2.5m$

Substituting the value

$F =(0.55 *10^ {-4}) (1.5)(2.5)$

$F=2.1*10^{-4}N$

For the first case where the current is moving from west to east and we are told that the magnetic field is from south to north the according to Fleming's right hand rule the force(exerted by earths magnetic field ) would be moving from south to north (i.e upward)

For the second case where current is moving vertically upwards the direction of the force is to the west according to Fleming's right hand rule

7 0

3 years ago

Read 2 more answers

Most binary systems with an invisible companion contain a large, bright star and a small, dim star hidden by the light of its la

Vlada [557]

Answer:

Brain signals are converted

8 0

4 years ago

How do I answer number 4? Please help x

4vir4ik [10]

Explanation:

Efficiency is the ratio of energy out to energy in.

e = Eout / Ein

0.52 = 800 J / Ein

Ein ≈ 1538 J

Round as needed.

8 0

3 years ago

A red photon has a wavelength of 650 nm. An ultraviolet photon has a wavelength of 250 nm. The energy of an ultraviolet photon i

zimovet [89]

The energy of an ultraviolet photon is 2.6 times greater than a red photon.

<h3>Energy of a photon</h3>

The energy of a given photon of light is calculated using the wavelength and the speed of light.

<h3>Energy of a red photon</h3>

The energy of the a red photon at the given wavelength is calculated as follows;

$E_r = \frac{hc}{\lambda} \\\\E_r = \frac{6.67 \times 10^{-34} \times 3 \times 10^8}{650 \times 10^{-9}} \\\\E_r = 3.078 \times 10^{-19} \ J$

<h3>Energy of an ultraviolet photon</h3>

$E_r = \frac{hc}{\lambda} \\\\E_r = \frac{6.67 \times 10^{-34} \times 3 \times 10^8}{250 \times 10^{-9}} \\\\E_r = 8.0 \times 10^{-19} \ J$

<h3>The ratio of the two energies</h3>

$= \frac{8.0 \times 10^{-19}}{3.078 \times 10^{-19}} \\\\= 2.6$

Thus, the energy of an ultraviolet photon is 2.6 times greater than a red photon.

Learn more about energy of a photon here: brainly.com/question/7464909

4 0

3 years ago