Why is a control important in an experiment?

The use of oil or grease to lessen friction is called

Which one is having lesser ressistance. a 60w bulb or a 40w bulb?

Which of these is generally considered to have been discovered by Einstein? -space is empty -mass bends Space-time -gravity causes acceleration -an electric charge produces an electric field around it

When the voltage across a steady resistance is doubled, the current?

Who stated that animals as well as plants are made of cells

We wrap a light, nonstretching cable around a 10.0 kg kg solid cylinder with diameter of 38.0 cm cm. The cylinder rotates with negligible friction about a stationary horizontal axis. We tie the free end of the cable to a 14.

A 0.5kg baseball experiences a 10N force for a duration of 0.1s. What is the change in velocity of the baseball

A beam of light passes from air into a cube of zirconium if the angle of incidence is 40"what is the angle of refraction?

Which element combines chemically with sodium to form ordinary table salt? A) aluminum B) argon C) carbon D) chlorine

If an object moving in one direction slows down, then the direction of its acceleration is the same as the direction of its motion.