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?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?...
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 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...
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...
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?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...
