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Elina [12.6K]
3 years ago
9

The work of Niels Bohr relied on the assumption that: Select the correct answer below: an electron should continuously spiral in

to the nucleus the electron only emits electromagnetic radiation when it descends to a lower-energy orbit atoms ought to be unstable electrons continuously emit electromagnetic radiation
Physics
1 answer:
Mars2501 [29]3 years ago
5 0

Answer:

the electron only emits electromagnetic radiation when it descends to a lower-energy orbit

Explanation:

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Choose all the answers that apply. Oxygen is _____. transported by blood picked up in the alveoli released into the air by the l
aleksklad [387]
ANSWER:

- Transported by blood picked up in the alveoli
- Pumped to cells by ventricles

Hope this helps! :)
4 0
2 years ago
Read 2 more answers
Part complete How long must a simple pendulum be if it is to make exactly one swing per five seconds?
shtirl [24]

Answer:

L=6.21m

Explanation:

For the simple pendulum problem we need to remember that:

\frac{d^{2}\theta}{dt^{2}}+\frac{g}{L}sin(\theta)=0,

where \theta is the angular position, t is time, g is the gravity, and L is the length of the pendulum. We also need to remember that there is a relationship between the angular frequency and the length of the pendulum:

\omega^{2}=\frac{g}{L},

where \omega is the angular frequency.

There is also an equation that relates the oscillation period and the angular frequeny:

\omega=\frac{2\pi}{T},

where T is the oscillation period. Now, we can easily solve for L:

(\frac{2\pi}{T})^{2}=\frac{g}{L}\\\\L=g(\frac{T}{2\pi})^{2}\\\\L=9.8(\frac{5}{2\pi})^{2}\\\\L=6.21m

3 0
3 years ago
Why are we not able to see immediate after we enter a dark hall from a lighter place.
Kipish [7]
Technically this is a Biology question;

The 'amount' we can see depends on how much light can get through our pupil to hit our retina.
When there is a lot of light the pupil is small; it doesn't need to be big to let a lot of light in.
When we move to a dark space there is much less light, so the pupil 'dilates' to let enough light so we can see properly.
The period in which one cant see is simply when the pupil hasn't had time to change shape yet so doesn't let in enough light.<span />
3 0
3 years ago
What does more damage; a slow semi truck, or a fast sports car
Goshia [24]
The fast sports car does more damage then the slow semi truck
7 0
3 years ago
In an emergency situation, firemen need to respond as quickly as possible. If a fireman is responding from the second floor, how
rjkz [21]

Answer:

4m/s

Explanation:

May be different considering how long the pole is and how heavy the firefighter is.

8 0
2 years ago
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