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mestny [16]
3 years ago
13

Three masses A, B & C revolve in the same plane about a centre O in the plane. The

Physics
1 answer:
zhenek [66]3 years ago
4 0

Answer:

Place A along the x-axis, B along the y-axis, and then C is 30 deg below the negative x-axis.

A = Cx to balance forces on the x-axis

Cx = -25 cos 30 = -21.65 kN

A = Ax = 21.61 kN     balances forces in the x-direction

Likewise

Cy = -25 sin 30 = -12.5 kN

B = By = 12.5 kN balances forces in the y-direction

The length of the radii are not important (consider a force table)

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vodomira [7]

Answer:

the true about n i b i n is they are Commissioner

8 0
3 years ago
Help me plz science middle school
elena55 [62]

The correct answer is A. He created a way of naming organisms based on genus and species

Explanation:

Carl Linnaeus created a simple but precise system for naming organisms of any species and kind. This system was known as binomial nomenclature and the names of organisms depend on two main elements: the genus and the species. The first element is a broad category that covers species with a common origin, and the second one is the species, which describes organisms that can reproduce and share many common features including DNA sequence. According to this, the correct answer is A.

3 0
4 years ago
9. You drive a car from Milwaukee to Chicago, which is a distance of 150km and it takes you 95
Katena32 [7]

For this case we have to, by definition:

v = \frac {x} {t}

Where:

v: It's the velocity

x: It is the distance traveled

t: It is the time spent

1 hour equals 60 minutes and 1 minute equals 60 seconds.

On the other hand:

1 kilometer equals 1000 meters

So:\frac {150} {95} \frac{km} {min} * \frac {1} {60} \frac {min} {sec} * \frac {1000} {1} \frac {m} {km} = \frac {150 * 1000} {95 * 60} \frac {m} {sec} = \frac {15000} {5700} \frac {m} {sec} = 2.63 \frac {m} {sec}

On the other hand:\frac {150} {95} \frac{km} {min} * \frac {60} {1} \frac {min} {hr} = \frac {150 * 60} {95} \frac {km} {h} = 94.74 \frac {km} {h}

ANswer:

2.63 \frac {m} {sec}\\94.74 \frac {km} {h}

8 0
3 years ago
What is the relationship between the electric field strength at a point and its distance from the source charge?
Minchanka [31]
<span>The relationship between the electric field strength at a point and its distance from the source charge is inversely proportional. As the electric field strength increases the charges are more closer to each other which means the distance between the is smaller. It is seen by the equation:

E = </span><span>(1/4*pi*epsilon0) (Q/r^2)</span>
5 0
3 years ago
Read 2 more answers
You are leaving for a party at your cousin’s house in a city that is 150 km away. You will travel at an average rate of 50 km/hr
mrs_skeptik [129]

The distance you should cover is: S=150 km

Your average speed is: v=50 km/h

Therefore, to calculate the time you will take to cover this distance, we can use the basic relationship between space, distance and time, and we find:

t=\frac{S}{v}=\frac{150 km}{50 km/h}=3 h

so, you will take 3 hours.

3 0
3 years ago
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