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ValentinkaMS [17]
3 years ago
11

How is the Milky Way changing? A. Large numbers of stars are being born inside nebulas. B. The Milky Way does not change. C. Lar

ge numbers of stars are dying inside nebulas. D. Large numbers of stars are undergoing blue-shift.
HELP ME PLEASE!
Physics
1 answer:
Over [174]3 years ago
7 0

Answer:

D. Large numbers of stars are undergoing blue-shift.

Explanation:

The Milky Way is changing because a large numbers of stars are undergoing blue-shift.

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Calculate the charge that flows through the cell in 1 minute. Each filament lamp has a power of 3 W and a resistance of 12 Ω
lapo4ka [179]

Answer:

24 Coulumbs

Explanation:

Given data

time= 1 minute= 6 seconds

P=2 W

R= 12 ohm

We know that

P= I^2R

P/R= I^2

2/12= I^2

I^2= 0.166

I= √0.166

I= 0.4 amps

We know also that

Q= It

substitute

Q= 0.4*60

Q= 24 Columbs

Hence the charge is 24 Coulumbs

5 0
3 years ago
In the formula 4h²o how many total hydrogen atoms are there
Helen [10]
There are 8 hydrogen atoms
6 0
3 years ago
To heat the house, the boiler transfers 15 MJ of energy in 10 minutes.
Harrizon [31]

The formula is P = E/t, where P means power in watts, E means energy j , and t means time in seconds. This formula states that power is the consumption of energy per unit of time.

P = 15 M / 10*60

M = mega = 10⁶

15 *10⁶ / 600

= 25000 watt

8 0
2 years ago
Problem 1. Cylinders and a pendulum A uniform solid cylinder of radius r and mass m can roll inside a hollow cylinder of radius
Nataliya [291]

Answer:

The two answers are in the explanation

Explanation:

Please find the attached files for the solution

7 0
3 years ago
Need help now!! Engineers at a technology company are designing a new battery for the next generation of cell phones. How will k
Olin [163]

Answer:

A battery consists of some number of voltaic cells made up of two half-cells that are connected in series by a conductive electrolyte containing metal cations (positive ions). It contains one half-cell with an electrolyte and the negative electrode, the electrode to which anions (negatively charged ions) migrate, and the other half-cell includes electrolyte and the positive electrode, to which cations (positively charged ions) migrate. Cations gain electron at the cathode, while anions are loose electrons at the anode.

The voltage developed across a cell's terminals depends on the energy release of the chemical reactions of its electrodes and electrolyte, so a strong metal at the anode will guarantee a higher energy release.

Also, since the reaction is redox, knowing about the nature of metals, especially their order in the electrochemical series will determine the ease of reaction when used for a battery.

3 0
3 years ago
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