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Physics

## Physics

### Can we use static electricity to light a bulb?

Can we use static electricity to light a bulb?I recently saw a video of two students holding a light bulb in one hand while rubbing their other hands to their clothes and when their hands touched the light bulb start glowing how is this poss...

### centripetal force question?

centripetal force question?A 200 g ball on the end of a string is rotated in a horizontal circle of radius 10 m. The ball completes 10 rotations in 5 s. What is the centripetal force of the string on the ball?...

### in relativity can 4 apples equal 5 pearsa?

in relativity can 4 apples equal 5 pearsa?...

### does a rocket go faster when it is reaching the sky's ed

does a rocket go faster when it is reaching the skys edge or when it is taking off from the ground on liftoff?its raw speed and/or acceleration? skys edge near outer space is where there is lower gravity. think maybe a bottle cap...

### A rocket of mass m is lifting off of the surface of Earth wi

A rocket of mass m is lifting off of the surface of Earth with an acceleration equal to 3g. The force produced by the rockets thrust equ....?equals a) 1mg b) 2mg c) 3mg d) 4mg e) 5mg...

### can a 9 volt battery support a tube light?

can a 9 volt battery support a tube light?...

### how does force of an electron move in an electrical circuit?

how does force of an electron move in an electrical circuit?...

### How is the index of refraction related to the speed of light

How is the index of refraction related to the speed of light?...

### What is Planke Length?

What is Planke Length?...

### how to connect 470 uf 40 volt capacitor in speakers?

how to connect 470 uf 40 volt capacitor in speakers?...

### How long until object hits the ground?

How long until object hits the ground?A projectile is fired upward from the ground with an initial velocity of 300 feet per second. Neglecting air resistance, the height of the projectile at any time t can be described by the polynomial func...

### If everything with mass has gravity, how come objects consid

If everything with mass has gravity, how come objects considerably less massive than my body dont orbit around me?...

### Assuming an ideal pulley, calculate the acceleration of syst

Assuming an ideal pulley, calculate the acceleration of system (a) and the tension (T) in the string connecting the two blocks. (APPHYS)?Use the photo below for reference. Answer options: 1) a=6m/s^2 , T=16N 2) a=6m/s^2 , T=4N 3) a=8m/s^2 ,...

### How do I solve this physics question?

How do I solve this physics question?Determine the angle that the vector sum of the displacements Δd1 = 1.0 m [46.7° S of W], Δd2 = 13.9 m [S] and Δd3 = 21.7 m [35.0° S of E] makes South of East....

May you please help me solve this physics question?Determine the angle that the vector sum of the displacements Δd1 = 6.2 m [58.0° S of W], Δd2 = 6.8 m [S] and Δd3 = 28.0 m [17.2° S of E] makes South of East. (I am studying for a test a...
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