13. Convert 30° C to Fahrenheit

doo

a. 30 F

b. 86 F

34 F

d. 100 F

Explain why if charge cannot be created or destroyed, electrically neutral objects can become electrically charged

During an isothermal process, 5.0 J of heat is removed from an ideal gas. What is the change in internal (thermal) energy of the gas? A) 0.00 J B) 2.5 J C) 5.0 J D) 7.5 J E) 10 J

Suppose you have 150. ml of a substance with density of 42.0 g/dm3. convert the volume from milliliters to liters to cubic decimeters, then determine the mass of the sample in grams.

What is the acceleration due to gravity at a location where a 15 kilogram mass weighs 45 newtons?

Average speed and average velocity are always the same.

A building 190 feet tall casts a 30 foot long shadow. if a person stands at the end of the shadow and looks up to the top of the building, what is the angle of the person's eyes to the top of the building (to the nearest hundredth of a degree) ?

The frequency of which type of electromagnetic wave is just higher than that of visible light? A. infrared waves B. gamma rays C. x-rays D. radio waves E. ultraviolet rays

Two circular coils are concentric and lie in the same plane. The inner coil contains 140 turns of wire, has a radius of 0.015 m, and carries a current of 7.2 A. The outer coil contains 180 turns and has a radius of 0.023 m.

Which best describes how magnesium (mg) and oxygen (o) bond? they form an ionic bond by exchanging two electrons. they form an ionic bond by exchanging three electrons. they form a covalent bond by sharing one electron.

The coefficient of linear expansion of steel is 12 * 10-6 k-1. what is the change in length of a 25-m steel bridge span when it undergoes a temperature change of 40 k from winter to summer? a. 1.2 cm b. 1.8 cm c. 1.4 cm d. 2.0 cm e. 1.6 cm