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Bogdan [553]
3 years ago
11

What momentum does a 70 kg person running 10m/s (a fast sprint) have ?

Physics
1 answer:
gogolik [260]3 years ago
8 0

Momentum = (mass) x (speed)

Momentum = (70 kg) x (10 m/s)

<em>Momentum = 700 kg-m/s</em>

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To which group/family does each of these belong? A. Sulfur _________ B. Sodium _________ C. Argon _________ D. Silicon _________
ArbitrLikvidat [17]

Answer:

A. Sulfur _________ group 16 chalcogens

B. Sodium _________ group 1 alkali metals

C. Argon _________ group 18 noble gases

D. Silicon _________ group 14 carbon family

E. Chlorine _________ group 17 halogens

F. Phosphorus_________ group 15 pnicogens

7 0
2 years ago
What limits current flow or the opposition to the movement of electrons?
Tcecarenko [31]

Answer:

Resistor

Explanation:

Resistors are measured in ohms . So one ohm is the amount of resistance that opposes current flow from one part of a circuit to another. The voltage v is directly proportional to the current I so , V= IR

Resistance R =

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3 0
3 years ago
When blue light of wavelength 470 falls on a single slit, the first dark bands on either side of center are separated by 45.0. d
enyata [817]
For Fraunhofer diffraction at a single slit would be represented by: 

<span>a sinθ = mλ 

</span><span>It should be noted that the angle needs be halved because we are only concerned with the angle between m=1 and m=0 and they gave you the angle between m=1 to the right of the center and m=1 on the left of the center. We calculate as follows:
</span>
<span>a sin(45/2)=(1)(470)
a = 1228 nm 

Hope this answers the question. Have a nice day.
</span>
3 0
4 years ago
A bee beats its wings approximately 184 times per second. what is its wave period?
sergejj [24]

Answer: It's 0.00543

4 0
3 years ago
Read 2 more answers
An atom with an imbalance of electrons to protons is
alexdok [17]
<h2>Answer: Ion </h2>

An ion is an atom that is electrically charged by <u>gaining or losing one or more electrons. </u>

To understand it better:

An atom has a nucleus with electrons around it and has a neutral charge. When an electron is added or detached, this atom is electrically charged, that is, it ceases to have a neutral charge and becomes an <u>ion</u>.

In this sense, there are two types of ions:

-Anions: ions negatively charged, by the gain of electrons in the atom.

-Cations: ions positively charged, by the loss of electrons in the atom.

7 0
4 years ago
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