<span>C. Reduce the friction between its moving parts.</span>
A chemical is a mutual attraction between the nuclei and electrons
Kinetic energy is the energy possessed by an object that is in motion. It is calculated by one half the product of the mass of the object and the square of its velocity. We calculate as follows:
KE = mv^2/2
KE = .150 kg (39 m/s)^2 / 2
KE = 114.08 J
Answer: For ideal machine efficiency = 1. Hence M.A = V. R. The V. R of an ideal machine and the practical machine is a constant or is the same for both
Answer:
v = 6 cm
Explanation:
We have,
A small object is placed on the principal axis of a convex mirror of focal length 10 cm. The focal length of a convex mirror is positive. So, f = +10 cm
It is required to find the position of the image when the object is 15 cm from the mirror. Using mirror's formula :
v is image distance
Hence, the image will formed at a distance of 6 cm form the mirror.