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Nataliya [291]
3 years ago
5

What are three tecnologies tht are used to observe things that are difficult to visit?

Physics
1 answer:
Pachacha [2.7K]3 years ago
3 0
Telescopes, because we can visually visit the moon lol.
Camera Pills, so we can see the inside of a person

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Please help...........................
Marianna [84]
Hi!

Neutrons are neutral, which means they don't exactly have an electrical charge. It's because of this neutral charge that it is represented with a '0'. 

On the other hand, protons and electrons <em>do </em>have electrical charges. Electrons flow around the outside of the nucleus, with a negative charge.

Protons are stored in the nucleus with the neutrons, holding a positive charge.

Hopefully, this helps! =)
6 0
3 years ago
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A sound wave increases in pitch. Which of the following changes has occurred?
statuscvo [17]
<span>If the pitch of a sound increased, then the wave frequency increased. (D)</span>
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3 years ago
An earthquake creates a type of wave that shakes the ground. If a large earthquake occurs in Greece, how can the waves be felt a
Cloud [144]
The sound waves travel through the sea which creates movement which can be felt all the way in Italy in the sea- like a domino effect
7 0
3 years ago
A carton is given a push across a horizontal, frictionless surface. The carton has a mass m, the push gives it an initial speed
sammy [17]

Answer and Explanation:

Data provided in the question

Carbon mass = m

Initial speed = v_i

Coefficient = μk

Based on the above information, the expressions are as follows

a. By using the energy considerations the expression for the carton moving distance is

As we know that

Fd = \frac{1}{2} m (v_i^2- v_f^2)

where,

v_f = 0

F = u_kmg

(\mu_kg) d = \frac{1}{2} m v_i^2

d = \frac{\frac{1}{2}v_i^2}{\mu_kg}

d = \frac{v_i^2}{2 \mu_kg}

b. The initial speed of the carton if the factor of 3 risen, so the expression is

v_i^1 = 3v_i

d^i = \frac{(3v_i^2)}{2\mu_kg}

= \frac{9v_i^2}{2\mu_kg}

d^i = 9(d)

8 0
3 years ago
A box is being pulled to the right. What is the direction of the gravitational force?
ioda

Answer:

The correct answer would be downwards

Hope this helps have a good day

4 0
3 years ago
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