Earth has a surface area of 170 million square miles. What is its area in each unit?
square kilometers
Express the surface area to three significant figures.
square megameters
Express the surface area to three significant figures.
square decimeters
Express the surface area to three significant figures.
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Earth has a surface area of 170 million square miles. What is its area in each...
Earth has a surface area of 181 million square miles. What is its area in each unit? square kilometers square megameters square decimeters
1. Mars has a surface area of 55.9 million miles2. Showing all of your work and using at least four conversion steps, convert the surface of Mars to square kilometers. Report your answer to the correct number of significant figures, in scientific notation, and with correct units. 2. A fictional element has two isotopes and an atomic mass of 89.08 amu. If the first isotope is 86 amu and the second isotope has a mass of 90 amu. Which isotope...
The weight (in pounds) w t(d) of an object varies inversely as the square of its distance (in thousands of miles) d from the center of Earth a. An astronaut weighs 180 pounds at sea level (about 4 thousand miles from Earth's center) Find an equation off b. How much would the astronaut weigh at 4 thousand miles above Earth's surface? pounds c. At what distance from the center of Earth would the astronaut weigh 1 pound? miles (Round to...
Part B Total U.S. land area is 3.537 million square miles. What percentage of U.S. land is farmland? IVO AO ? % Submit Request Answer
8. In a physics laboratory experiment, a coil with 170 turns enclosing an area of 14.0 cm2 is rotated during the time interval 3.50×10−2 s from a position in which its plane is perpendicular to Earth's magnetic field to one in which its plane is parallel to the field. The magnitude of Earth's magnetic field at the lab location is 5.50×10−5 T . A. What is the magnitude of the magnetic flux (Φinitial) through the coil before it is rotated?...
Near the surface of Earth, an electric field points radially downward and has a magnitude of approximately 100 N/C. 1) What charge in mC (magnitude and sign) would have to be placed on a penny that has a mass of 3.11 g to cause it to rise into the air with an upward acceleration of 1.990 m/s2? (Express your answer to three significant figures.)
Thank you Constants The earth has a downward-directed electric field near its surface of about 150 N/C. ▼ Part A If a raindrop with a diameter of 0.030 mm is suspended, motionless, in this field, how many excess electrons must it have on its surface? Express your answer using two significant figures. ΑΣφ 3.8.10 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
A satellite in a circular orbit 500 miles above the surface of the Earth. What is the period of the orbit? You may use the following constants: Radius of the Earth: 4000 miles Gravitational Constant: 66710?11m3(kgs2) Mass of earth: 5981024kg Number of Meters in a mile: 1609 Period= ? seconds
Near the surface of Earth, an electric field points radially downward and has a magnitude of approximately 100 N/C. What charge (magnitude and sign) would have to be placed on a penny that has a mass of 3.11 g to cause it to rise into the air with an upward acceleration of 0.590 m/s2? (Express your answer to three significant figures.) I keep getting 3.23 or some variation of that but it is not correct. Please show your work!
A hypothetical planet has a radius 1.2 times that of Earth, but has the same mass. 1.)What is the acceleration due to gravity near its surface? Express your answer to two significant figures and include the appropriate units.