What did J. J. Thomson's experiments with cathode ray tubes imply about the mass of an electron? Electrons are many thousand times larger than the nucleus and negatively charged.
Electrons are many thousand times smaller than the nucleus and positively charged.
Electrons are many thousand times smaller than the nucleus and negatively charged.
Electrons are many thousand times larger than the nucleus and possess no charge.

Electoral current force mechanical advantage if the wheel and axle is 2 n and the output force is 20 n

The sample with the lowest specific heat capacity will have the greatest temperature increase. in this case, it would be platinum.

Since you have not included the experiment situation and the data, of course, i can not give you specific details about it. but i can you with this question.1) i will assume that the motion is projectile (parabolic) motion.2) yes, the horizontal distance depends on the horizontal velocity as, naming vx the horizontal velocity and t the time, it is: x = vx × t3) now, observe that the flight time depends on the vertical velocity as, naming voy the initial vertical velocity, t the time and y the vertical distance before reaching the ground: y = yo + voy×t - gt² / 2.the higher the initial vertical velocity (voy) the longer the object will be flying and so t will be higher in the equation for the horizontal distance.that explains the relationship between the horizontal distance and the horizontal velocity.

Two 10¢  coins  (dimes)  carrying identical charges  are  lying 2.5 m apart  on a  table.  if each  of  these coins experiences  an  electrostatic force  of  magnitude 2.0 n due  to the  other coin.  the charge on each coin is :     52.2 uc