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2 years ago

An atom’s emission of light with a specific amount of energy confirms that

Physics

2 answers:

Vlad1618 [11]2 years ago

6 0

The answer is...

B-electrons emit and absorb energy based on their position around the nucleus.

I just took the test

laila [671]2 years ago

3 0

An atom’s emission of light with a specific amount of energy confirms that electrons emit and absorb energy based on their position around the nucleus.

The light emitted from an electron is a result of the electron's quantum jumps/leaps ( atomic electron transitions ) to and from different energy levels.

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Kyle has the mass of 54 kg and is jogging at a velocity of m/s. What is Kyle’s kinetic energy

inysia [295]

m = mass = 54 kg

v = velocity = 3 m/s

KE = (1/2)*m*v^2

KE = (1/2) * 54 * (3)^2

KE = 243 J

Hope this helps!

3 0

2 years ago

Read 2 more answers

A biologist looking through a microscope sees a bacterium at r⃗ 1=2.2i^+3.7j^−1.2k^μm(1μm=10−6m). After 6.2 s , it's at r⃗ 2=4.6

stiv31 [10]

The Average velocity for the bacterium is 0.75 unit/sec.

Explanation:

The given values are in the vector form

Where,

dS = distance covered

dT = time interval

Now, to calculate distance covered, we have

$|d S|=\sqrt{d S^{2}}$

$d S=r_{2}-r_{1}$

d S=(4.6 i+1.9 k)-(2.2 i+3.7 j - 1.2 k)

d S=(4.6-2.2) i+(0-3.7) j+(1.9+1.2) k

d S=2.4 i-3.7 j+3.1 k

Now, putting these values in the standard formula to evaluate the average velocity, we get;

$v_{a v g}=\frac{|\mathrm{d} S|}{d T}$

$v(a v g)=\frac{|\sqrt{\left\{\left(2.4^{2}\right)+\left(3.7^{2}\right)+\left(3.1^{2}\right)\right\}}|}{7.2}$

As dT=7.2 sec

Now,

Solving the equation, we get;

$v(a v g)=\frac{5.390732789}{7.2}$

$\begin{aligned}&v(a v g)=\frac{5.39}{7.2}\\&v(a v g)=0.748611111\\&v(a v g)=0.75 \text { units / sec }\end{aligned}$

Hence, the average velocity for the bacterium is 0.75 unit/sec.

3 0

3 years ago

Can someone please help me with these. I don't understand any of it.

ValentinkaMS [17]

1. electrical energy: electrical energy that is caused by moving electrons

2. coolant: a mixture of antifreeze and water that removes excess heat from an internal engine

3. electric compressor: a device that acts as a pump, circulating refrigerant throughout the refrigerator

4. the inside of the fridge and the food becomes colder

5. the coolants becomes a hot, high-pressure gas

6. as coolant transfers thermal energy to the air outside, it turns back into a liquid

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2 years ago

Drake lifted a couch a height of 0.2 meters in 1.3 seconds. He did 300 j of work. how much power did drake use?

Novosadov [1.4K]

Answer:

c is correct

Explanation:

I hope this helps.

6 0

2 years ago

The space shuttle orbits 310 km above the surface of the Earth.

MAVERICK [17]