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777dan777 [17]
3 years ago
8

The formulas used to analyze the horizontal and vertical motion of projectiles launched at an angle involve the use of which fun

ction(s)?
Physics
2 answers:
dlinn [17]3 years ago
7 0
Sin/Cos if that's one of the answers.  you have to use trig because you must resolve into components.
White raven [17]3 years ago
4 0

<u>Answer</u>

Sine and Cosine

<u>Explanation</u>

For the vertical and the horizontal forces the component is zero. If the only the horizontal and the vertical forces are given and you want to find the force at a given angle, you calculate the component forces.

To find the component forces you apply the trigonometric functions sine and cosine.


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The sun is important to is because of the heat it provides. The sun is just one of ________ of stars in the universe.
marishachu [46]
The sun is just one of the uncountable stars in the universe, as there are more than billions of galaxies containing billions of stars. 
3 0
3 years ago
A resistor is connected in series with an AC source that provides a sinusoidal voltage of v of t is equal to V times cosine of b
nekit [7.7K]
<h2>Answer:</h2>

In circuits, the average power is defined as the average of the instantaneous power  over one period. The instantaneous power can be found as:

p(t)=v(t)i(t)

So the average power is:

P=\frac{1}{T}\intop_{0}^{T}p(t)dt

But:

v(t)=v_{m}cos(\omega t) \\ \\ i(t)=i_{m}cos(\omega t)

So:

P=\frac{1}{T}\intop_{0}^{T}v_{m}cos(\omega t)i_{m}cos(\omega t)dt \\ \\ P=\frac{v_{m}i_{m}}{T}\intop_{0}^{T}cos^{2}(\omega t)dt \\ \\ But: cos^{2}(\omega t)=\frac{1+cos(2\omega t)}{2}

P=\frac{v_{m}i_{m}}{T}\intop_{0}^{T}(\frac{1+cos(2\omega t)}{2} )dt \\\\P=\frac{v_{m}i_{m}}{T}\intop_{0}^{T}[\frac{1}{2}+\frac{cos(2\omega t)}{2}]dt \\\\P=\frac{v_{m}i_{m}}{T}[\frac{1}{2}(t)\right|_0^T +\frac{sin(2\omega t)}{4\omega} \right|_0^T] \\ \\ P=\frac{v_{m}i_{m}}{2T}[(t)\right|_0^T +\frac{sin(2\omega t)}{2\omega} \right|_0^T] \\ \\ P=\frac{v_{m}i_{m}}{2}

In terms of RMS values:

V_{RMS}=V=\frac{v_{m}}{\sqrt{2}} \\ \\ I_{RMS}=I=\frac{i_{m}}{\sqrt{2}} \\ \\ Then: \\ \\ P=VI

7 0
2 years ago
Um carro percorre um trecho de 450 km em escalar media do carro
Aleks04 [339]

Average speed of the car is defined as the ratio of total distance and total time

So here we will have

v_{avg} = \frac{distance}{time}

now we know that

distance = 450 km

time = 5 h

now from above equation we will have

v = \frac{450 km}{5 h} = 90 km/h

so the average speed will be 90 km/h

7 0
3 years ago
Two lab carts are pushed together with a spring mechanism compressed between them. Upon release, the 5.0 kg cart repels one way
JulijaS [17]

Answer:

V = -0.3 m/sec.

Explanation:

5.0 x 0.12 + 2.0 x v = 0. Which means that V = -0.3 m/sec.

The -ve sign shows it moves in the opposite direction.

8 0
3 years ago
Five factors predisposing a person to stroke​
insens350 [35]

Answer:

the answers maybe→↓

Explanation:

high blood pressure.

cigarette smoking.

diabetes.

high blood cholesterol levels.

heavy drinking.

5 0
3 years ago
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