Magnetic induction is used for what?

Which of the following classifications of star temperature is hottest? K O B M

How does current flow in a electrical circuit

Two of the three tuning forks have known frequencies. When a 510 Hz. fork and the unknown fork are struck together, four beats per second are heard. When a 505 Hz.

Name an organic molecule that carbon is found in.

A 0.26-kgkg rock is thrown vertically upward from the top of a cliff that is 32 mm high. When it hits the ground at the base of the cliff, the rock has a speed of 33 m/sm/s. a.

The voltage across the primary winding is 350,000 V, and the voltage across the secondary winding is 17,500 V. If the secondary winding has 600 coils, how many coils are in the primary winding? 30 583 12000 332500

A 200 watt t. v. is used for 20 hours in a week. If it is used for four weeks then what is cost of electricity if rate is 5rs/kwh

In an experiment, the control is never changed by the scientist not important to the scientist not recorded by the scientist changed by the scientist

When you catch a baseball, what kind of work do you do, negative or positive? by catching the ball, what do you change? what energy does it gain or lose?

All describe work except A) a team of dogs dragging a sled B) a jokey sitting on a horse C) a bowler lifting a bowling ball