Why is graphite magnetic

How are forest fires beneficial to conifers like Jack Pines? a. Jack pine seeds are protected by forest fires. b. Pine cones are carried on the winds produced by forest fires. c. Forest fires release the seeds stored in Jack pine cones. d.

Which is likely to produce the brightest spectra? A. Holographic gratings B. Reflection gratings on plastic C. Transmission gratings on glass D. Replica transmission gratings on plastic

If the frequency of a wave is tripled, what happens to the period of the wave?

What is the loose covering of weathered rock particles and decaying organic matter overlying the bedrock of earths surface

A projectile is fired with an initial speed of 51.2 m/s at an angle of 44.5 degrees above the horizontal on a long flat firing range. Determine the following: a. The maximum height reached by the projectile. b. The total time in the air. c.

Two Jupiter-size planets are released from rest 1.40*10^11m apart. What is their speed as they crash?,

Chayse is working on analyzing the electromagnetic spectrum, focusing on ultraviolet rays. He determines that a UV ray has a frequency of 1.53 * 1016 Hz and a wavelength of 1.96 * 10-8 m. Are his results reasonable? Explain your answer.

If you increased the momentum of an object without increasing it inertia then what do you have

An object starts moving at 10 ms and has an acceleration of 2 ms-2. Find its speed after 5 seconds and the distance travelled.

A total of 54.0 calories of heat are absorbed as 58.3 g of lead is heated from 12.0° C to 42.0° C. What is the specific heat of lead? A) 0.029 cal gram °C B) 0.022 cal gram °C C) 0.017 cal gram °C D) 0.031 cal gram °C