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ZanzabumX [31]
3 years ago
5

Why are common measurement systems important

Physics
1 answer:
kenny6666 [7]3 years ago
6 0
So that international people don't mistake units for others. ex 1 inch could be mistaken for 1 cm in non American countries
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A singly charged ion (q=−1.6×10−19) makes 7.0 rev in a 45 mT magnetic field in 1.29 ms. The mass of the ion in kg is
insens350 [35]

Answer:

m=1.47\times 10^{-24}\ Kg

Explanation:

Given that,

Charge, q=1.6\times 10^{-19}\ C

Revolution = 7 rev

magnetic field, B = 45 mT

Time, t = 1.29 ms

We need to find the mass of the ion. Let m be the mass. The formula for the mass in terms of time period is given by :

m=\dfrac{qBT}{2\pi}\\\\m=\dfrac{1.6\times 10^{-19}\times 45\times 10^{-3}\times 1.29\times 10^{-3}}{2\pi}\\\\m=1.47\times 10^{-24}\ Kg

So, the mass of the ion is equal to 1.47\times 10^{-24}\ Kg.

4 0
3 years ago
What would happen if the earth's continents moved closer together
GarryVolchara [31]
Not much   The   Americas  are moving towards  Asia   due to continental drift.
The Atlantic is getting wider any 1/2" per year

8 0
2 years ago
What is the purpose of the overrunning clutch in the starter drive?
nadya68 [22]
<span>"prevent the engine from over speeding the armature"
hopes this help :) :D :)</span>
5 0
3 years ago
If 180 grams of potassium iodide is dissolved in 100 cm3 of water at 30oC, a(n) _______________ solution is formed. A) saturated
kenny6666 [7]

Answer: D)supersaturated

Explanation: Solubility is defined as the amount of solute in grams which can dissolve in 100 g of the liquid to form a saturated solution at that particular temperature.

At 30^0C , the solubility of KI is 153g/100 ml.

Thus if 180 grams is dissolved, it contains more amount of solute than it can hold at that that temperature, and thus is supersaturated solution.

A saturated solution is a solution containing the maximum concentration of a solute dissolved in the solvent. ​The additional solute does not dissolve in a saturated solution.

An unsaturated solution is solution in which the solute concentration is lower than its equilibrium solubility.

A supersaturated solution is one that has more solute than it can hold at a certain temperature.

6 0
3 years ago
Read 2 more answers
A rocket sled is tested at "5 g" (5 times the acceleration due to gravity). If the sled starts from rest at position do= 0.00, h
stealth61 [152]
D=at²
441m=(5*9.81m/s²)(t²)
t²=441/(5*9.81)
t≈√8.99
t≈3 sec
8 0
3 years ago
Read 2 more answers
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