Earth Science

Q: Find c.Round your answer to 2 decimal places.

Q: The pH scale measures the hydrogen ion concentration in a liquid, which determines whether the substance is acidic or alkaline. A strong acid solution has a hydrogen ion concentration of 10-1 M and would have a pH of 1. A neutral substance has a hydrogen ion concentration of 10-7 M and would have a pH of 7. How many orders of magnitude more hydrogen ions does a substance with a pH of 3.7 have than a substance with a pH of 5.7?

Q: How many orders of magnitude larger is a ton compared to a gram?

Q: Using the graph, how many orders of magnitude larger is the radius of Earth than the average radius of an atom? A) 1016 B) 10"3 C) 1017 D) 1018

Q: Determine the order of magnitude difference between and .

Q: Determine the order of magnitude difference between gigameters and centimeters.

Q: Determine the order-of-magnitude difference between and .

Q: One earthquake has a Richter number of 5.1. A second has a Richter number of 8.1. How many times more intense is the second than the first? A) 3 B) 1,000 C) 30 D) 59,049

Q: Compare $0.01 and $1,000,000. By how many orders of magnitude do they differ? A) B) C) D) 16 E) 8

Q: Perform the conversion given 1 quart = 0.946 liters. Convert 187.5 qtto l If necessary, round the answer to 6 decimal places.

Q: Perform the conversion given 1 ounce = 28.35 grams. Convert 147.7 g to oz If necessary, round the answer to 6 decimal places.

Q: Perform the conversion given 1 pound = 0.4536 kilograms. Convert 71.5 kg to lb If necessary, round the answer to 6 decimal places.

Q: Perform the conversion given 1 inch = 2.54 centimeters. Convert 75.7 cm to in If necessary, round the answer to 6 decimal places.

Q: Perform the conversion:352.7 meters to millimeters

Q: The distance from Earth to the planet Pluto is miles. If a spaceship leaves from Earth travelling at a rate of 15,000 miles per hour, how many years will it take to reach Pluto? Round your answer to 2 decimal places. (Use 365 days in a year.)

Q: Our galaxy measures approximately kilometers across. If a space vehicle were capable of moving at half the speed of light (approximately kilometers per second), how many yearswould it take for the vehicle to cross the galaxy? Write your answer in scientific notation and round your final coefficient to 2 decimal places. (Use 365 days in a year.)

Q: The length of a hydrogen atom is millimeters and the average human foot measures 200 millimeters. How many hydrogen atoms would it take to equal the length of the average human foot?Express your answer in scientific notation and round the coefficient to 2 decimal places.

Q: The tallest known tree is the Howard Libbey redwood in Redwood Grove, California. The height of the tree is 100,000 millimeters. The distance from the Earth to the sun is approximately millimeters. How many Howard Libbey redwoods would it take to stretch from the Earth to the sun? Write your answer in scientific notation.

Q: Pluto is approximately miles from the sun. How many seconds does it take the light of the sun to reach Pluto if light travels miles per second?Write your answer in scientific notation and round the coefficient to 2 decimal places.

Q: Perform the conversion given the following information. 1 km = 0.6214 miles 1 gal = 0.13368 ft3 1 cm3= 3.53 x 10-5ft3 1 cm3= 10-3 liters Convert 60 kilometers per liter to miles per gallon. If necessary, round your answer to 2 decimal places.

Q: Perform the conversion given that there are 5280 feet in 1 mile. Convert 25 miles per day to inches per second. If necessary, round your answer to 2 decimal places.

Q: Perform the conversion given that there are 5280 feet in 1 mile. Convert 55 feet per second to miles per hour. If necessary, round your answer to 2 decimal places.

Q: The speed of light is approximately miles/sec. Convert the speed of light into meters/year.(1000 meters=.62 miles, for the year to second conversion, think it out, you already know what you need.)Write your answer in scientific notation and round your answer to 2 decimal places.

Q: Perform the conversion given that 1 meter = 3.28 feetand 3 feet = 1 yard. Convert 20 yards to meters. Round your answer to 2 decimals.

Q: Perform the conversion given that there are p/180 radians in 1 degree.Convert 180 degrees to radians.Give an exact answer in terms of .

Q: Perform the conversion given that there are p/180 radians in 1 degree. Convert radians to degrees. Give an exact answer.

Q: Perform the conversion given that there are 5280 feet in 1 mile. Convert 35 miles to feet. If necessary, round your answer to 6 decimal places.

Q: Simplify the expression. Express your answer using only positive exponents.

Q: Find the height of an equilateral triangle with side 2 cm. (Use the Pythagorean theorem. Round the answer to 3 decimal places.)

Q: The time it takes for one complete swing of a pendulum is called the period of its motion. The period T (in seconds) of a swinging pendulum is found using the formula seconds where L is the length of the pendulum in feet and 32 is the acceleration of gravity in feet per second. Find the length of a pendulum whose period is 2.421 seconds. (Express the answer in feet and inches to the nearest inch.)

Q: The time it takes for one complete swing of a pendulum is called the period of its motion. The period T (in seconds) of a swinging pendulum is found using the formula m where L is the length of the pendulum in feet and 32 is the acceleration of gravity in feet per second. Find the period of a pendulum whose length is 1 ft 4 in. (Round the answer to 3 decimal places.)

Q: Find the length of a side, s, of a cube with volume, V, of 343 in3. (Where V = s3.)

Q: Calculate:

Q: Evaluate the expression.

Q: Simplify by removing all possible factors from the radical.

Q: Simplify by removing all possible factors from the radical, then combine any like terms.

Q: Assume all variables represent positive quantities and simplify.

Q: Evaluate:

Q: A period is the time it takes for one complete swing of a pendulum. The period T (in seconds) of a swinging pendulum is found using the formula where L is the length of the pendulum in feet. A) Find the period (in seconds) of a pendulum whose length is 2 feet 1 inches. B) How long (in inches) would a pendulum have to be to have a period of 6 seconds? Round answers to 2 decimal places.

Q: Simplify the expression. Express your answer using only positive exponents.

Q: Simplify the expression.

Q: Simplify the expression. Express the answer in radical form if necessary.

Q: Simplify the expression.

Q: Evaluate the expression.

Q: Rewrite the expression using fractional exponents. Do not simplify.

Q: Simplify the expression. Express your answer using only positive exponents.

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