Magnitude and direction of electric fields? ?
how would you do the following? a small object a, electrically charged, creates an electric field. at a point p located 0.250m directly north of a, the field has a value of 40.0n/c directed to the south. what is the charge of object a? (a)1.11×10^-9 c (b)-1.11x10^-9 c (c)2.78x10^-10 c (d)-2.78x10^-10 c (e)5.75x10^12 c (f)-5.75x10^12 c

Which body part transports oxygen removes waste materials in carries nutrients to the body as part of the circulatory system

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)

Suppose that a mass of 2 kg is attached a spring whose spring constant is 50. the system is damped such that b = 12 . the mass is set in motion with an initial velocity of -8 m/s at a position 0 meters from equilibrium. set up and solve a differential equation that models this motion. write your solution in the form a cos ( ω t − α ) where α is a positive number. use your solution to fill in the information below: what is the amplitude of the motion? what is the value of ω ? what is the phase shift?