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4 years ago

A lightning bolt with 13 kA strikes an object for 14 μ s. How much charge is deposited on the object?

Physics

1 answer:

pogonyaev4 years ago

8 0

Answer:

0.182C

Explanation:

Using Q= It

= 13x10^3 . 14x10^-6

= 0.182C

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6 latter word and it has a s and a I and it has mass (9.______________liquids, and gases all have mass.)

Firdavs [7]

Answer:

Solids

Explanation:

Solids, liquids, and gases all have mass.

7 0

2 years ago

A beam of photons with wavelength 150 nm and beam of electrons having the same energy as the photons go through the same slit of

satela [25.4K]

Answer:

Explanation:

For moving particle , the wavelength is given by the expression

$\lambda=\frac{h}{\sqrt{2mE} }$

E is kinetic energy of the particle

Here particle is electron and its kinetic energy

E = 150 nm

= 1244 / 150

= 8.3 eV

8.3 X 1.6 X 10⁻¹⁹ J

=13.28 X 10⁻¹⁹ J

Putting these values in the expression for wavelength as given above we have

$\lambda=\frac{6.6\times10^{-34}}{\sqrt{2\times9.1\times10^{-31}\times13.28\times10^{-19}} }$

λ = .425 nm

Wave length of electron wave will be 0.425 nm

Hence its wavelength will be smaller and therefore magnitude of angle made by it will also be smaller. So magnitude of β will be smaller than that of α .

4 0

3 years ago

Can a compound be broken down into simpler substances

jonny [76]

Yes.
Take the compound glucose.
C6H12O6 is its formula, and when combined with O2 (oxygen gas), it breaks down into carbon dioxide and water, which are simpler substances. Also, compounds can be broken down into distinguishable elements, which are the simplest unit.

4 0

4 years ago

A block of height 120mm is placed on top of another block with a height of 1.50 m. What is the height of the two blocks together

pav-90 [236]

We will first convert all units to meters and then solve the problem.
We are given that:
1000 mm = 1 m
120 mm = ?? meters
using cross multiplication:
120 mm = (120*1) / 1000 = 0.12 m

Now, when the two objects are placed over each other, their total height is the result of summation of both heights, therefore:
total height = 0.12 + 1.5 = 1.62 m

Based on the above calculations, the correct choice is:
<span>b) 1.62 m </span>

6 0

4 years ago

A scientist is examining an unknown solid. which procedure would most likely help determine a chemical property of the substance

asambeis [7]

Answer:

exposing it to a flame to see if it catches on fire

Explanation:

A chemical property is when the matter changes into a different substance. This is true when you expose it to a flame because if a substance is burned, it will change into a new substance. All the other options are examples of physical changes.

-I also took the quiz and got 100%

Hope this helps!

7 0

3 years ago