If a trillion (1012) asteroids, each 5 km in diameter, were assembled into one spherical body, how large (in km) would it be? (Note: The volume of a sphere = ar.) km Compare that body's size to the size of Earth given in its celestial profile. d dEarth
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There are two parts to this question. I need to know the km and the formula answer below. Thank you!
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- A furlong is a distance of 220 yards. A fortnight is a time period of 2 weeks. A race horse is running at a speed of 2.3 yards per second. What is his speed in furlongs per fortnight?.51. The average distance between Earth and the Sun is 1.5 × 108 km. (a) Calculate the average speed of Earth in its orbit (assumed to be circular) in meters per second. (b) What is this speed in miles per hour?1. A car starts driving at noon (t = 0) and drives at exactly 50 miles per hour until 4pm (t = 4). (b) Sketch a graph of the car's speed (in miles per hour) vs its time (in hours). Shade in the area below your graph, between t = 0 and t = 4. 1 (c) Explain why this area is equivalent to the answer to the "how far did the car drive?" question.
- 1. A car speedometer has a 6% uncertainty. What is the range of possible speeds (in km/h) when it reads 80 km/h? km/h (lowest) km/h (highest) 2. Convert this to miles per hour. mi/h (lowest) mi/h (highest)A rocket is launched at ? = 0 seconds. Its height, in meters above sea-level, is given by the equationℎ = −4.9?2 + 325? + 227A. Find the time it takes the rocket to reach the maximum height? (Round answer to 2 decimal places.) B. What is the maximum height attained by the rocket? (Round to the nearest whole number)2.
- 5. When 12 times a number is added to the square of that number, the result is ‒32. Determine the two numbers that fit this condition. Answer step-by-steps. 6. A cannonball is fired from ground level on an arc described by h = ‒t2 + 8t, where h = the height in metres and t is the time in seconds. How many seconds after firing will it land? Answer step-by-steps.Jake’s height is measured to be 67 ???ℎ??; Enrique’s height is measured as 67.2 ???ℎ??. Can we use these two measurements to determine who is taller? Use your understanding of approximate numbers to explain why or why not.USE THE CORRECT NUMBER OF SIGNIFICANT FIGURES IN THE ANSWER!
- I am unsure if I should determine how many miles equal a kilometer or how many miles per hour equal kilometers per hour. A car travels with an average speed of 35 MPH. What is this speed in km/h?What acceleration must affect an object so that it can travel at 16.5 m/s in a circular path of circumference 61.5 m? (Units: ms2.) Please write only with 1 decimal place.I am a little confused on this question , please help. Thank you for your time! I have attached the problem .Please view attachment before answering. Thank you again!