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3 years ago

Weather stays the same all the time true or false

Physics

2 answers:

xxMikexx [17]3 years ago

8 0

False. Because the weather changes all the time. Rainy, to cloudy,to sunny. Etc.

Vlad1618 [11]3 years ago

5 0

This question is false because it is not hot or cold every single day

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Help asap!! The resultant force on the box is

rodikova [14]

The resultant force on the box is C) 10 Newtons to the left.

Explanation:

The figure of the problem is attached.

We see that there are two forces acting on the box along the horizontal direction:

- A force of 10 N acting to the right

- A force of 20 N acting to the left

By taking "to the right" as positive direction, we can rewrite the two forces as follows:

$F_1 = +10 N\\F_2 = -20 N$

Where the second force is negative since it acts to the left.

Since the two forces are in line, we can find their resultant simply by calculating their algebraic sum. By doing so, we find:

$F=F_1 + F_2 = +10 + (-20) = -10 N$

And the negative sign tells us that the direction is to the left.

Therefore, the correct answer is

C) 10 Newtons to the left.

Learn more about forces here:

brainly.com/question/12978926

#LearnwithBrainly

5 0

3 years ago

A train car with mass m1 = 515 kg is moving to the right with a speed of v1 = 7.5 m/s and collides with a second train car. The

Anna [14]

Answer:

For the first situation, we first need to find the mass of the second train car.

In order to do that, we apply the conservation of the amount of movement:

$515*7.5+m2*0=(m1+m2)*4.8$

and we have as a result:

m2 = 289.6875

For the second situation, also we will apply the conservation of the amount of movement:

$515*7.5-289.6875*6 = (515+289.6875)*V$

and we have as a result:

V = 2.64 (it is moving to the right)

6 0

3 years ago

3) Using the rating of perceived exertion scale that we

Schach [20]

Answer:

What do you mean

Explanation:

7 0

3 years ago

1) Sketch (or scan or photocopy if you prefer) the plot below twice on your homework sheet. a) On one plot, draw the sum of the

miskamm [114]

Answer:

yes

Explanation:

yes

5 0

3 years ago

We often refer to the electricity at a typical household outlet as being 120 V. In fact, the voltage of this AC source varies; t

astra-53 [7]

Explanation:

We often refer to the electricity at a typical household outlet as being 120 V. In fact, the voltage of this AC source varies; the 120 V is "the rms value of the voltage".

The rms value of voltage is given by :

$V_{rms}=\dfrac{V_{pk}}{\sqrt{2}}$

Where

$v_{pk}$ is the peak value of voltage

So, the correct option is (d). " rms value of voltage".

3 0

4 years ago