moonflower

[r] = m (meter) [Q] = C (Coulomb) [F] = N (Newton) Substituting these units into the above equation gives the unit of A [A] = ? Merged post follows: Consecutive posts mergedcurrent?

The equation F A Q1 Q2 r2 Where A is a constant, Q1 and Q2 are the charges and r is the seperation of the charges. Please can any one offer some assistance in making A the subject of the equation? And to find the units of A

Brill thanks. xxx

so if my question reads, explain how the process works and why a voltage difference must be applied to the system of the nozzle and article during the painting process.. A voltage difference would need to be applied to charge each droplet of paint to pick up a positive charge (they do this by loosing negative electrons). The article to be painted is given a high voltage negative charge which will then attract the positively charged droplets.... ??????? Is my answer correct? x (thanks so much)

If the droplets of paint are charged positive and the object to be charged negative then the positive droplets will be attracted to the object to be painted. if the object to be painted was also charged positive then the spray paint would not be very efficient and i would imagine cause a big mess. Correct? I think im just a bit lost (again) in respects to the definition of voltage difference and what it actually does in this process...

I am trying to understand what the effects of a voltage difference would have in the method of electrostatic charge spray painting..

the question dosnt require fine definitions. What about the transfer of energy? how is it different to conversion? Thank you for your time im feeling like im getting somewhere now..

Ok, So the transfer from body to step is by? work? the conversion from chemical is to Gravitational potential energy and kinetic? does the posts above in which i have written correct? Thanks so much

Hi there, would someone be able to tell me if this is right or almost right or really not right?! The scenario being explaining the transfers and conversions of energy of a diver. from walking up the steps to standing at the top of platform to jumping into pool and to start swimming. So i have - CHEMICAL -INTERNAL & KINETIC - POTENTIAL & GRAVITATIONAL (transfered from body to steps then once reached the top of steps) POTENTIAL & GRAVITATIONAL - CHEMICAL - KINETIC & GRAVITATIONAL - SOUND&HEAT ( From board to a dive into the pool and on entrance to the pool) CHEMICAL - KINETIC& HEAT & SOUND (whilst swimming) Thank you Merged post follows: Consecutive posts mergedI am trying to gain a understanding of the transfers and conversions of energy whilst the subject (being a diver) goes through its motions. Maybe i should be clearer .... SO as the diver makes his way to the top of the steps chemical energy is transferred from the body to the steps(unsure of transfer) Work? converting into kinetic energy. as the diver reaches the top of the steps the kinetic energy converts to potential and gravitational energy? From the board chemical energy converts to kinetic and gravitational and on entrance to the water sound energy? as the diver starts to swim chemical energy converts to kinetic and internal energy and sound as the diver swims through the water?

Problem: Im after info that will help me answer what the relevance of the age of the oceanic crusts and the continental crusts within the south american plate Are there presence of hotspots on the south americ ...there is moreshow problem Im after info that will help me answer what the relevance of the age of the oceanic crusts and the continental crusts within the south american plate Are there presence of hotspots on the south american plate? what is the process that is responsible for the change in area of the south american plate?

What is the magnitude of the acceleration that the force will cause when applied to a car with a mass of 1.1x10³Kg Then calculate the final speed of the car (above) assuming that it was standing still initially and that the force of 5.0 x 10³ N is applied for 6.0s Why would the car take longer to reach the calculated speed if the car's mass was 1.4 x10³Kg. which part of newtons second law would explain this. THANKS. xxx -

SO i dont have the radius or the volume but i have an estimate of the density 14.5 10³kg m-3 Im really uncertain of the formula needed to A. get the radius without the volume and vice versa. PLEASE HELP! Thanks in advance! Merged post follows: Consecutive posts mergedsome how must use the values above to get my answer?!

Thanks so Very much, Would you be able to help me with the following..... From a seismogram i have worked out that the s wave arrived 9.5mins after the first p wave how do i estimate the epicentral angle from this when i don't have the depth of the epicentre? Is there a formula? Thanks AGAIN in advance!

Hi everyone, SO im new to this but im desperate for a little help understanding something... Seismometers. the time that elapses between an earthquake and it being recorded by the seismometer depends on what factors? Is it the different type of waves? ANY help would be incredibly appreciated! Thanks in advance!