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Marina CMI [18]
3 years ago
15

How many bottles of water should you drink in a week

Physics
2 answers:
Karolina [17]3 years ago
8 0
56 bottles of water a week 

8 bottles a day x 7  days a week = 56 total bottles

siniylev [52]3 years ago
4 0
About 96 ounces of water a day.
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An ideal gas is enclosed in a piston, and 1600 J of work is done on the gas. As this happens, the internal energy of the gas inc
Phantasy [73]

Answer:

- 1100 J heat flows out

Explanation:

dW = - 1600 J (as work is done on the gas)

dU = 500 J

dQ = ?

According to the first law of thermodynamics

dQ = dU + dW

dQ = 500 - 1600

dQ = - 1100 J

As heat is negative so it flows out.

3 0
3 years ago
The radius of the earth is 6378 km. What is the diameter of the earth in meters?
Nesterboy [21]
To determine the diameter of the earth in metres first multiply the original value by 2.

6378 X 2 = 12 756 km.

Then convert km - m

1 km = 1000 m
12 756 km = ? m

12 756 • 1000 = 12 756 000 = 12 756 000 m or 1.2756 X 10 ^ 7 m

The final solution for the diameter is 1.2756 X 10 ^ 7 m.
7 0
3 years ago
After release of jet, energy is lost by the engine. How principle of conservation of energy is obeyed in this condition.​
HACTEHA [7]

Answer:

The principle of conservation of energy states that in a closed system, the energy can neither be created nor destroyed between interacting particles and remains constant or transformed from one form to another

In the jet engine, the release of jet changes the number of interacting particles in the engine, and given that energy cannot be created in the instantaneously closed system of the engine, energy is carried away and therefore lost by particles in the jet exhaust

The conservation of energy principle is therefore obeyed in the condition in which the jet engine losses energy by the release of jet

Explanation:

5 0
2 years ago
Why must scientists be careful when studying<br> nanotechnology?
JulijaS [17]

Answer:

When studying nanotechnology, scientists must be aware that their ideas may not work out. Their work could be very time consuming and cost a lot of money. Finally, scientists do not yet know all of the effects of nanotechnology on human health.

Hope it helps u:)

6 0
2 years ago
A proton moving at 6.60 106 m/s through a magnetic field of magnitude 1.80 T experiences a magnetic force of magnitude 7.60 10-1
Hoochie [10]

Hi there!

We can use the following equation for a point charge in a magnetic field:


\large\boxed{F_B = qv \times B}

F_B = Force due to magnetic field (7.6 × 10⁻¹³N)
q = Charge of particle (1.6 × 10⁻¹⁹ C)

v = velocity of particle (6.6 × 10⁶ m/s)

B = Magnetic field strength (1.8 T)

Or, without the cross product:
F_B = qvBsin\theta

θ = angle between particle's velocity and field

We can rearrange to solve for theta:
\frac{F_B}{qvB} = sin\theta\\\\\theta = sin^{-1} (\frac{F_B}{qvB})

Solve for theta:
\theta = sin^{-1} (\frac{7.6*10^{-13}}{(1.6*10^{-19})(6.6*10^6)(1.80)}) = \boxed{23.57^o}

4 0
2 years ago
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