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3 years ago

Select the two true statement about a free body diagram

Physics

2 answers:

Andrew [12]3 years ago

5 0

It’s 1 and 4bjdjdjdjfndjd

BabaBlast [244]3 years ago

3 0

Answer: 1and4

Explanation:

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Give two explains food that are good sources of protein

Ad libitum [116K]

Answer:

Chicken and peanut butter lol

Explanation:

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3 years ago

It takes a car 1.75 h to go from mile marker 115 what's the average speed of the car?

emmainna [20.7K]

The average speed of the car is

(the mile marker he passes at the end of the 1.75 h) minus 115
divided by
(1.75 hours) .

The unit is 'miles per hour'.

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3 years ago

Which phrase describes the paleo-Indians of prehistoric Arkansas?

Vlad [161]

The first one is D hunted with stone-tipped spears

The second one is A

Hope this helps

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3 years ago

Read 2 more answers

Consider a particle moving along the x-axis where x(t) is the position of the particle at time t, x'(t) is its velocity, and x''

Lady_Fox [76]

Answer:

We know that the acceleration of the particle is defined as

$a(t)=\frac{dv}{dt}$

Since it is given that

$v(t)=\frac{5}{\sqrt{t}}\\\\\therefore a(t)=\frac{d(\frac{5}{\sqrt{t}})}{dt}\\\\a(t)=5\times \frac{dt^{-\frac{1}{2}}}{dt}\\\\=\frac{-5}{2}t^{\frac{-1}{2}-1}\\\\\therefore a(t)=x''(t)=\frac{-2.5}{t^{\frac{3}{2}}}$

Now by definition of velocity we have

$v(t)=\frac{dx(t)}{dt}\\\\\Rightarrow dx(t)=v(t)dt$

Integrating on both sides we get

$v(t)=\frac{dx(t)}{dt}\\\\\int dx(t)=\int v(t)dt\\\\x(t)=\int v(t)dt$

Applying values we get

$v(t)=\frac{dx(t)}{dt}\\\\\int dx(t)=\int v(t)dt\\\\x(t)=\int \frac{5}{t^{\frac{1}{2}}}dt\\\\\therefore x(t)=\frac{5}{0.5}\int t^{-0.5}dt\\\\x(t)=10\sqrt{t}+c$

To find the constant we note that at t=1 the particle is at x=12 Thus applying values in the above equation we get

$c=12-10\\\therefore c=2\\\\x(t)=10\sqrt{t}+2$

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3 years ago

How can empty - shampoo bottles become useful?<br><br><br>

Ganezh [65]

Crafting, reusing
Good luck!

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3 years ago