The position in meters of a particle at time t is given by r(t)=t? + 3t +3, where t is measured in seconds. What is the instantaneous velocity of the particle at=19 seconds?

Acoil formed by wrapping 80 turns of wire in the shape of a square is positioned in a magnetic field so that the normal to the plane of the coil makes an angle of 28.0° with the direction of the field. when the magnetic field is increased uniformly from 200 µt to 600 µt in 0.400 as, an emf of magnitude 80.0 mv is induced in the coil. what is the total length of the wire?

Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same