A certain speed boat weighs 4,451 N. It can accelerate from 0 to 20 m/s in 5 seconds. What is the mass of the boat?

The average rate of disappearance of ozone in the reaction is

Mention two ways to increase the strength of an electro magnet.

Why are molecular compounds unable to conduct electricity

A roller coaster car speed is 4 m/s, but 3 seconds later its speed is 22 m/s. What is its average acceleration?

Which of the following statements is true about magnetic fields produced by current-carrying wires? the larger the current, the larger the magnetic field the smaller the current, the larger the magnetic field the longer the wire, the larger the

The decay constant of a radioactive nuclide is 4.6 x 10^-3 s^-1. What is the half-life of the nuclide? 2.5 min 2.0 min 1.4 min 3.6 min 3.1 min

A furlong is an old british unit of length equal to 0.125 mi, derived from the length of a furrow in an acre of ploughed land. a fortnight is a unit of time corresponding to two weeks, or 14 days and nights.

What is the unit measurement for pain relief tablets and is it SI units Or English system?

You hold a metal ring horizontally above a bar magnet standing on its end. You drop the ring and catch it before it reaches the magnet.

What do we call seismic waves that are transmitted along the outside of earth?