Research and describe the history of physics and chemistry and contributions of scientists

Suppose you were asked to find the torque about point p due to the normal force n in terms of given quantities. which method of finding the torque would be the easiest to use?

Aparticle travels in a circular orbit of radius 21 m. its speed is changing at a rate of 23.1 m/s2 at an instant when its speed is 37.2 m/s. what is the magnitude of the acceleration (in m/s? ) of the particle?

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.