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bagirrra123 [75]
3 years ago
10

How to convert 40m/min to km/h? need step by step explanation​

Physics
2 answers:
AlekseyPX3 years ago
8 0

How to convert m/sec into km/hr

1 m = 1/1000 km; 1 sec = 1/3600 hr

1 m/sec = 3600/1000 km/hr = 18/5 km/hr

To convert m/sec into km/hr, multiply the number by 18 and then divide it by 5.

Need detail explanation? Go to bottom

Solved Example 1:

Convert 20 m/sec into km/hr.

Solution:

20 m/sec

Step 1:

Multiply 20 by 18

We have 20 * 18 = 360

Step 2:

Divide 360 by 5

360/5 = 72

Final Answer:

20 m/sec = 72 km/hr

Try yourself: Practice Sheet 1

Solved Example 2:

Convert 36 m/sec into km/hr.

Solution:

36 m/sec

Step 1:

Multiply 36 by 18

We have 36 * 18 = 648

Step 2:

Divide 648 by 5

648/5 = 129.6

Final Answer:

36 m/sec = 129.6 km/hr

Try yourself: Practice Sheet 2

Better Understanding:

The problem can be solved using an unitary method.

A shopkeeper sells each pencil for 5 cents. How much do 4 pencils cost? 4 * 5 cents= 20 cents, isn't it? What is the cost of 7 pencils? Yes, your guess is right. It is 7 * 5 cents = 35 cents.

Let us work out the problem in example 1 as it explained here.

20 m/sec = 360/5 = 72 km/hr

Hitman42 [59]3 years ago
7 0

Answer:

i have no clue i just need brailnly points

Explanation:

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Changes can occur that the gliders unite and move with a cosecant speed less than the initial one.

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calculemos

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elastic shock case

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6 0
3 years ago
Remember to include your data, equation, and work when solving this problem.
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Answer:

F = 0.00156[N]

Explanation:

We can solve this problem by using Newton's proposed universal gravitation law.

F=G*\frac{m_{1} *m_{2} }{r^{2} } \\

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F = gravitational force between the moon and Ellen; units [Newtos] or [N]

G = universal gravitational constant = 6.67 * 10^-11 [N^2*m^2/(kg^2)]

m1= Ellen's mass [kg]

m2= Moon's mass [kg]

r = distance from the moon to the earth [meters] or [m].

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G = 6.67 * 10^-11 [N^2*m^2/(kg^2)]

m1 = 47 [kg]

m2 = 7.35 * 10^22 [kg]

r = 3.84 * 10^8 [m]

F=6.67*10^{-11} * \frac{47*7.35*10^{22} }{(3.84*10^8)^{2} }\\ F= 0.00156 [N]

This force is very small compare with the force exerted by the earth to Ellen's body. That is the reason that her body does not float away.

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2 years ago
If the pressure in a gas is doubled while its volume is held constant, by what factor do vrms change
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Answer is given below

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given data

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let the frequency of the air-track glider which is equal to frequency of simple pendulum = F

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