Which of the following statements is considered weather? It is very hot in the desert. It snows a lot in Antarctica. The sun is always shining in Arizona. There is a tornado in Oklahoma right now.

Estimate the enthalpy change (J/g) for air being heated from 250 C to 350 C. At 300 K the specific heat at constant pressure, cp, is 1.005 J/g/K and this value does not change much for temperatures surrounding 300K. Give 1 decimal in your answer.

Why is a bird able to sit on a power line? a. Because the line is covered with insulating material. c. The voltage in power lines is very small. b. Because both feet are on the same line there is no difference in voltage from foot to foot. d.

East-West orbits are best for: military observation radio and television environmental studies remote sensing

Why does a glass rod become positively charged when it is rubbed with a silk cloth?

A truck is moving around a circular curve at a uniform velocity of 13 m/s. If the centripetal force on the truck is 3300 N and the mass of the truck is 1600 kg, what's the radius of the curve?

An oil drop with a mass of 8.3 grams and a charge of + 2.2 mC is floating 7.68 meters above a positively charged floor. What is the magnitude of the charge on the floor?

True or false? disk blocks are made up of one or more sectors

Write a paragraph showing the relationship between chemistry and physical based on what you've learned from the periodic table

An aluminum screw has a density of 2.7 g/mL and a volume of 15mL. What is the mass of the screw?

Compare and contrast power and work.