A student is viewing a specimen under the microscope at a total magnification of 400x. If the oculars of the microscope are 10x, what is the magnification of the objective lens in use

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

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?

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong