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S_A_V [24]
2 years ago
11

Let us say that we were traveling and on our return, see that our grass is wet; what is the probability that the weather was clo

udy that day?
Physics
1 answer:
sladkih [1.3K]2 years ago
6 0

Seeing that the grass is wet increased  the probability that the weather was cloudy that day from 0.4 to 0.75.

<h3>What probability means ?</h3>

Probabilities are mathematical explanations of the likelihood that an event will occur or that a proposition is true. The likelihood of an event is represented by a number between 0 and 1, with 0 typically signifying impossibility and 1 typically signifying certainty.

The concept of probability tells us how likely a certain event is to occur. For instance, weather patterns are used by meteorologists to forecast the likelihood of rain.

<h3>How can the probability find ?</h3>

The probability of an occurrence can be determined using the probability formula by only dividing the favorable number of possibilities by the entire number of possible outcomes.

To know more about meteorologists visit :

brainly.com/question/5145125

#SPJ4

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Is the box moving at a constant speed? Explain how you know. What does this tell you about the kinetic energy of the system
mars1129 [50]

Answer:

The box is moved at constant speed, then the change in kinetic energy is zero.

Explanation:

Let suppose that box moves at constant speed, meaning that its kinetic energy (K), measured in joules, is expressed by the following equation:

K = \frac{1}{2}\cdot m\cdot v^{2} (1)

Where:

m - Mass, measured in kilograms.

v - Speed, measured in meters per second.

If the box moves at constant speed, then we notice that v_{f}^{2}-v_{o}^{2} = 0, therefore, \Delta K = 0. In a nutshell, if the box is moved at constant speed, then the change in kinetic energy is zero.

8 0
3 years ago
What will angle r do?
timama [110]

Answer:

Increase

Explanation:

because it's increasing up.

7 0
3 years ago
A tugboat tows a ship with a constant force of magnitude F1. The increase in the ship's speed during a 10 s interval is 3.0 km/h
Yuki888 [10]

Answer:

The magnitude of F₁ is 3.7 times of F₂

Explanation:

Given that,

Time = 10 sec

Speed = 3.0 km/h

Speed of second tugboat = 11 km/h

We need to calculate the speed

v_{1}=\dfrac{3.0\times10^{3}}{3600}

v_{1}=0.833\ m/s

The force F₁is constant acceleration is also a constant.

F_{1}=ma_{1}

We need to calculate the acceleration

Using formula of acceleration

a_{1}=\dfrac{v}{t}

a_{1}=\dfrac{0.833}{10}

a_{1}=0.083\ m/s^2

Similarly,

F_{2}=ma_{2}

For total force,

F_{3}=F_{2}+F_{1}

ma_{3}=ma_{2}+ma_{1}

The speed of second tugboat is

v=\dfrac{11\times10^{3}}{3600}

v=3.05\ m/s

We need to calculate total acceleration

a_{3}=\dfrac{v}{t}

a_{3}=\dfrac{3.05}{10}

a_{3}=0.305\ m/s^2

We need to calculate the acceleration a₂

0.305=a_{2}+0.083

a_{2}=0.305-0.083

a_{2}=0.222\ m/s^2

We need to calculate the factor of F₁ and F₂

Dividing force F₁ by F₂

\dfrac{F_{1}}{F_{2}}=\dfrac{m\times0.83}{m\times0.22}

\dfrac{F_{1}}{F_{2}}=3.7

F_{1}=3.7F_{2}

Hence, The magnitude of F₁ is 3.7 times of F₂

3 0
3 years ago
The law of conservation of mass states that ___________
klio [65]

The law of conservation of mass states that <u>matter cannot be created or destroyed.</u>

<u />

The law of conservation of mass states that the mass of the reactant must be equal to the mass of the product.

In 18th century law of conservation of mass was given by Levoisier.

It states that mass is neither created nor destroyed.

Example -

  • when wood burns the mass of the suit ,ashes and gases equal to the original mass of the charcoal.

  • after heating the ice it will convert into water. Mass of the ice does not change after undergoes a physical. Change.

The law of conservation of mass states that <u>matter cannot be created or destroyed.</u>

<u />

To know more about Conservation of mass.

brainly.com/question/14594753

#SPJ1

4 0
1 year ago
An electromagnet requires 3 things. Select the 3 components below.
notsponge [240]

Answer:

A. Battery

B. Iron Core

C. Solenoid

6 0
4 years ago
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