3 years ago

Pics pls you know what I mean

Physics

1 answer:

V125BC [204]3 years ago

4 0

boiiii I wont show you nun

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If there are no unbalanced forces acting on an object, according to Newton's First Law:

Sergio039 [100]

I think its b because when there is unbalanced forces it accelerates.

Hope this helps you out

4 0

3 years ago

What change occurs to the gravitational force of attraction between two bodies when the

Lisa [10]

Answer:

when the radius is halved, F becomes 4 times

Explanation:

The formula is given by

$F = \frac{Gm1m2}{r^2}$

When r is halved:

$F = \frac{Gm1m2}{(1/2r)^2}$

=> $F = \frac{Gm1m2}{1/4 r^2}$

=> $F = 4(\frac{Gm1m2}{r^2} )$

This means when the radius is halved, F becomes 4 times

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3 years ago

What is the name of family or group two

topjm [15]

Alkaline Earth Metals is that one

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3 years ago

An ice skater of mass m = 60 kg coasts at a speed of v = 0.8 m/s past a pole. At the distance of closest approach, her center of

IrinaVladis [17]

Answer:

1.78 rad/s

1.70344 rad/s

Explanation:

v = Velocity = 0.8 m/s

m = Mass of person = 60 kg

$r_1$ = Distance between center of mass of person and pole = 0.45 m

$r_2$ = New distance between center of mass of person and pole = 0.46 m

I = Moment of inertia

Angular speed is given by

$\omega_1=\dfrac{v}{r_1}\\\Rightarrow \omega_1=\dfrac{0.8}{0.45}\\\Rightarrow \omega_1=1.78\ rad/s$

The angular speed is 1.78 rad/s

In this system the angular momentum is conserved

$L_1=L_2\\\Rightarrow I_1\omega_1=I_2\omega_2\\\Rightarrow mr_1^2\omega_1=mr_2^2\omega_2\\\Rightarrow \omega_2=\dfrac{r_1^2\omega_1}{r_2^2}\\\Rightarrow \omega_2=\dfrac{0.45^2\times 1.78}{0.46^2}\\\Rightarrow \omega_2=1.70344\ rad/s$

The new angular speed is 1.70344 rad/s

7 0

3 years ago

The air inside a balloon exerts a force of 1.5 n on an area of 0.5 m^2. what is the pressure inside the balloon?

maxonik [38]

Pressure=force/area
1.5/0.5=3Pa

4 0

3 years ago

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