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USPshnik [31]
3 years ago
14

Please help me. I am bad at science!

Physics
2 answers:
Blababa [14]3 years ago
7 0
True is the correct answer
jeka57 [31]3 years ago
3 0
Its true particles can past another in a liquid.
You might be interested in
What type of decay has the release of electromagnetic energy from the nucleus and has the most penatrating power through other s
Verdich [7]

Answer:

Gamma decay

Explanation:

There are 3 types of radioactive decay:

- Alpha decay: in this decay, a nucleus emits an alpha particle (consisting of 2 protons and 2 neutrons, so a nucleus of helium). The alpha particle has a large charge (2e) and a large mass (4u), so it is strongly ionizing, and therefore loses energy faster while moving through matter, therefore its penetrating power is low (it can be easily stopped by a thin sheet of paper or by the skin)

- Beta decay: this decay occurs when a neutron in a nucleus turns into a proton, emitting a beta particle (a fast-moving electron) alongside with an antineutrino. The beta particle has a lower charge (e) and a smaller mass than the alpha particle, so it has a moderate penetrating power, being able to penetrate more than the alpha particle (the beta particle can be stopped by a thin sheet of aluminium)

- Gamma decay: this decay occurs when an excited nucleus decays emitting a gamma ray photon (which is electromagnetic energy with very high energy and frequency). The gamma ray photon has no charge and no mass, therefore it has the most penetrating power, being able to travel a much large distance before being absorbed by matter (several metres of concrete are required to stop gamma radiation.

So, the description in the question refers to gamma decay.

7 0
3 years ago
A concave mirror can form a real image, which is a copy of an object that forms _____.
viktelen [127]
I hope I can help! :)

A concave mirror is when the object is anywhere from infinity to focus the image so form will be real and inverted.

And when the object is between pole and focus of concave mirror then image so formed will be virtual and erect and the size of image is greater than size of object.

So, the answer would be "where light rays disperse."

Have a great day/evening/night! :)
Let me know if you have any additional questions!
-Kappifilms

4 0
3 years ago
A _________ engine operates using a three-sided metal rotor instead of the traditional piston-and-cylinder arrangement.
postnew [5]

That's a description of what makes the "Wankel engine" unique.

When it first came to the USA market, it came as the guts of a
new brand of car . . . the Mazda.  I don't know if some, or all, or
none of today's Mazdas still use the Wankel 'rotary' engine.
5 0
4 years ago
A person uses the same hand to throw both a frisbee or a ball. (Dominate hand)
strojnjashka [21]

Answer:

False

Explanation:

Using your opposite hand will strengthen neural connections in your brain, and even grow new ones. It’s similar to how physical exercise improves your body’s functioning and grows muscles

6 0
3 years ago
The pirate ship tie at the amusement park is a giant pendulum that riders sit in. It swings back and forth, with a maximum veloc
kkurt [141]

Here as we know that there is no loss of energy

so we can say that maximum kinetic energy will become gravitational potential energy at its maximum height

So here we have

\frac{1}{2}mv^2 = mgh

here we have

v = 20 m/s

m = 8000 kg

now from above equation we have

\frac{1}{2}(8000)(20^2) = (8000)(9.8)h

h = \frac{200}{9.8)

h = 20.4 m

so maximum height is 20.4 m

4 0
4 years ago
Read 2 more answers
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