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katovenus [111]
3 years ago
11

One grain of sand = 7*10 to the power of -5 how many grains of sand are in 6300 kg

Mathematics
1 answer:
zvonat [6]3 years ago
5 0
1.3 jmillion grains of sand
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What is the approximate length of a pendulum that takes 2.4 pi seconds to swing back and forth?
LuckyWell [14K]

Answer:

The length of the pendulum is 14.13 meters.

Step-by-step explanation:

The length of a pendulum is given by the formula, T = 2\pi \sqrt{\frac{L}{g} }, where T is the times period and L is the length of the pendulum.

Now, given that T = 2.4π seconds.

So, from the above equation, we get,

2.4\pi  = 2\pi  \sqrt{\frac{L}{g} }

⇒ \sqrt{\frac{L}{g}} = 1.2

⇒ \frac{L}{g} = 1.44 {We have the value of g as 9.81 m/sec²}

⇒ L = 1.44 × 9.81 = 14.13 meters. (Approx.)

Therefore, the length of the pendulum is 14.13 meters. (Answer)

3 0
3 years ago
Can you guys help me with this?
ankoles [38]
ANSWER-

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EXPLANATION-

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8 0
2 years ago
In 1998 the population of a city was 100,000. Then each year for the next five years the population increases by 3%. Write and e
sertanlavr [38]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ population = 100,000 x 1.03^5

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

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3 0
3 years ago
The distance between the cities Atlanta and Indianapolis is 540 miles. A motorcycle's speed is 48 mph. For a car it takes 2.25 h
WITCHER [35]

Answer:

It will take them 5 hours to meet if they start moving towards eachother simultaneusly.

Step-by-step explanation:

Distance, s = 540 miles

Motocycle's speed, v = 48 mph

Time for motorcycle to cover 48 miles, t = \frac{Distance}{Speed}

=  \frac{540}{48} = 11.25 h

For a car it takes 2.25 hours less than 11.25 for motorcycle:

Time for car than becomes: 11.25 - 2.25  = 9 h

Speed for car would be v(c) = \frac{Distance}{Time}

= \frac{540}{9} = 60 mph

<em>For finding when they will meet, we will need relative speed: </em>

Since they are moving towards each other the relative speed is the sum of speed of car and the speed of motorcycle

Relative Speed = 48 + 60 = 108 mph

Distance = 540 miles

Time =  \frac{Distance}{Speed}

        =  \frac{540}{108}

       = 5 hours





6 0
3 years ago
Find the area of each Triangle given the base<br>b and height be<br>1. B=3 h = 4​
Lunna [17]

Answer:

The area of the triangle is 6 square units.

Step-by-step explanation:

The area of a triangle is given by base x height / 2. Based on the info we're given in the question:

A= \frac{b \times h}{2}\\A= \frac{3 \times 4}{2}\\A=6

6 0
3 years ago
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