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Aleonysh [2.5K]
3 years ago
12

Newton's Third Law of Motion states that objects exert equal forces on each other in opposite directions.

Chemistry
1 answer:
Bingel [31]3 years ago
5 0

Answer:

Truck crashes into a car

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The speed of a car is 16 meters per second. What is this speed in miles per hour? What is
Dovator [93]

<u>Conversion Factors:</u>

1.61 km = 1 mile

60 sec = 1 min

60 min = 1 hour

<u />

Use dimensional analysis to solve.

=\frac{16\ meters}{1\ second} × \frac{1\ km}{1000\ meters} × \frac{1 mile}{1.61\ km} × \frac{60\ seconds}{1\ min} × \frac{60\ min}{1\ hour}

=35.77639752

= 36 miles/hour

If done properly, you should be left with the units <em>miles/hour</em>

<em />

3 0
3 years ago
WHY IS IT IMPORTANT TO HAVE A LARGE SAMPLE SIZE IN ANY EXPERIMENT?
Anon25 [30]
It is important because if the sample size is smaller, outliers could skew the data more than if it was large.
5 0
3 years ago
The half- life of actinium-228 is 6.13 hours What amount of a 70 milliqram sample remains after 24.52 hours?
Usimov [2.4K]

Answer:

4.375 milligram

Explanation:

Applying,

A = A'(2ᵃ/ⁿ)............. Equation 1

Where A = original amount of actinium-228, A' = amount of actinium-228 left after decay, a = Total time, n = half life

make A' the subject of the equation

A' = A/(2ᵃ/ⁿ)........... Equation 2

From the question,

Given: A = 70 milligram, a = 24.52 hours, n = 6.13 hours

Substitute these values into equation 2

A' = 70/(2²⁴°⁵²/⁶°¹³)

A' = 70/(2⁴)

A' = 70/16

A' = 4.375 milligram

4 0
3 years ago
A slice of Swiss cheese contains 41 mg of sodium.
larisa86 [58]

Answer:

a. 41 mg equals 0.041 grams.

b. 41 mg equals 0.0014462 ounces

c. 41 mg equals 9.039*10⁻⁵ pounds

Explanation:

You know that a slice of Swiss cheese contains 41 mg of sodium.

a. What is this mass in grams?

Knowing that 1 mg = 10⁻³ g, you can apply the following rule of three: if 1 mg equals 10⁻³ g or 0.001 grams, 41 mg will be equivalent to how much mass in g?

mass=\frac{41 mg*0.001 g}{1 mg}

mass= 0.041 grams

<u><em> 41 mg equals 0.041 grams.</em></u>

b. What is this mass in ounces?

Knowing that 1 mg = 3.5274 * 10⁻⁵ ounces, you can apply the following rule of three: if 1 mg equals 3.5274 * 10⁻⁵ ounces, 41 mg will be equivalent to how much mass in ounces?

mass=\frac{41 mg*3.5274*10^{-5}ounces }{1 mg}

mass= 1.4462*10 ⁻³ ounces= 0.0014462 ounces

<u><em>41 mg equals 0.0014462 ounces</em></u>

c. What is this mass in pounds?

Knowing that 1 mg = 2.20462 * 10⁻⁶ pounds, you can apply the following rule of three: if 1 mg equals 2.20462 * 10⁻⁶ pounds, 41 mg will be equivalent to how much mass in pounds?

mass=\frac{41 mg*2.20462*10^{-6}pounds }{1 mg}

mass= 9.039*10⁻⁵ pounds

<u><em>41 mg equals 9.039*10⁻⁵ pounds</em></u>

5 0
3 years ago
Please help i will mark brainly
timurjin [86]
B) Negative Exponent
5 0
3 years ago
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