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Salsk061 [2.6K]
3 years ago
11

Need help with these

Physics
2 answers:
Rina8888 [55]3 years ago
5 0

Answer:

I cant read that.

Explanation:

mina [271]3 years ago
5 0
I. The alpha particle is a helium nucleus; it consists of two protons and two neutrons. It contains no electrons to balance the two positively charged protons. ... Beta particles are emitted by neutron rich unstable nuclei. Beta particles are high energy electrons.
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A container with rigid walls is filled with 4.0 mol of air with Cv=2.5R Then the temperature is increased from 17 degrees C to 3
galina1969 [7]

Explanation:

Internal energy = heat + work

U = Q + W

Since there's no change in volume (rigid walls), W = 0.

U = Q

U = n Cᵥ ΔT

U = (4.0 mol) (2.5 × 8.314 J/mol/K) (354 C − 17 C)

U = 28,000 J

3 0
3 years ago
What is the unit of measurement for expressing the intensity of sound
Irina18 [472]
Decibel - the decibel is a relative unit of measurement equal to one 10th of a bel
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Defiance Drake, Space Adventurer, desperately needs to reach a cargo vessel 100m away, or run out of air and die in deep space.
jolli1 [7]

She misses. She should have accelerated faster in order to get to her target.

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3 years ago
70 POINTS AND BRAINLIEST PLEASE HELP!!!The Moon orbits Earth. This orbit causes the Moon to look different over the course of ab
Rudik [331]

Answer:

It always acurs after a 1st quarter

do you have photo?

Explanation:

8 0
3 years ago
What side of the worm faces up when placed in the tray when dissection?
Lelechka [254]

<span>The side of the worm that faces up when placed in the tray for dissection is the smoother side.

</span>You can observe the organs of these tiny creatures by dissecting a preserved earthworm<span>. In dissecting a worm, </span><span>lay the worm on your </span>dissecting tray<span> <span>with its dorsal side facing up.</span></span>

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