Water is a compound.

O A. True

B. False

What speed does an xray have in space?

What is the smallest lithostratigraphic rock unit?

8. What is the wavelength of a sound wave that has a speed of 250 m/s and a frequency of 400 Hz? 9. What is the wave speed of a wave that has a frequency of 50 Hz and a wavelength of 2.0 m? 10.

Explain why a city with the same latitude but higher elevation will have a lower temperature

Who performed classic experiments that supported the semiconservative model of dna replication?

When lava cools, what type of Rock forms?

A uniformly charged conducting sphere of 1.1 m diameter has a surface charge density of 6.2 µC/m2. (a) Find the net charge on the sphere. (b) What is the total electric flux leaving the surface of the sphere?

A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the blow-dryer is 12 A, while that of the vacuum cleaner is 5.7 A. Determine the power consumed by (a) the blow-dryer and (b) the vacuum cleaner.

4. A 40 kg child and a 30 kg child want to balance themselves on a 4 meter, 50 kilogramn see-saw. Where should the fulcrum be placed?

A 2-kg object is dropped from a height of 1000 m. What is the force of air resistance on the object when it reaches terminal velocity