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MatroZZZ [7]
3 years ago
9

A kid is swinging on a swing at the park with an angle of 25°, is this considered simple

Physics
1 answer:
Varvara68 [4.7K]3 years ago
6 0
This is something I have no idea
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a block initially at rest has a mass m and sits on a plane incline at angle. it slides a distance d before hitting a spring and
KiRa [710]

Answer:

k = \frac{2\cdot m \cdot g \cdot (d+x_{f})\cdot (\sin \theta - \mu_{k}\cdot \cos \theta)}{x_{f}^{2}}

Explanation:

Let assume that spring reaches its maximum compression at a height of zero. The system is modelled after the Principle of Energy Conservation and the Work-Energy Theorem:

U_{g,A}=U_{k,B} + W_{f}

m\cdot g \cdot (d + x_{f})\cdot \sin \theta = \frac{1}{2}\cdot k \cdot x_{f}^{2}+\mu_{k}\cdot m \cdot g \cdot (d+x_{f})\cdot \cos \theta

m\cdot g \cdot (d + x_{f})\cdot (\sin \theta-\mu_{k}\cdot \cos \theta) = \frac{1}{2}\cdot k \cdot x_{f}^{2}

The spring constant is cleared in the expression described above:

k = \frac{2\cdot m \cdot g \cdot (d+x_{f})\cdot (\sin \theta - \mu_{k}\cdot \cos \theta)}{x_{f}^{2}}

6 0
3 years ago
How is precipitation related to high- and low-pressure air
pentagon [3]

Answer:

The high-pressure region refers to the condition where the cold and dense air sinks and makes the atmosphere stable, forming clear sky or presence of low clouds in the sky.

On the other hand, the low-pressure region refers to the condition where the hot and less dense air rises upward, and with the presence of a sufficient amount of water content in the air, it gives rise t the formation of the clouds and eventually leads to the occurrence of rainfall.

This is how the process of precipitation is related to the high and the low-pressure air, where the low-pressure zone results in precipitation and high-pressure zone results in a clear sky.

7 0
3 years ago
What is the drawback to use period of pendulum as time standard
Vadim26 [7]

The time period of a simple pendulum depends upon its length and value of'g'at any place. The period of the pendulum of fixed length

3 0
3 years ago
Using the right-hand rule from your lessons, determine the directions of the electrical current and magnetic field of the electr
aliya0001 [1]

Answer:

Hello there use something that looks like this

Explanation:

This is an accurate representation of something you are working on!

As you can see the wire and the core are represented on the left and is showing how it can be represented on your right hand and how they are similar!

5 0
3 years ago
Which of the following statements about the
Komok [63]

Answer: the answer is A

Explanation: just did it

8 0
3 years ago
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