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An airplane must clear a 60-foot pole at the end of a runway 500 yards long determine the angle of elevation at which the airplane must ascend to clear the pole.
answered
Mar 2, 2019
Mathematics
middle-school
5
votes
52.2k
views
How many free states existed in 1850 ?
answered
Nov 20, 2018
History
high-school
1
vote
80.6k
views
A mutation can cause a change __________. a. in the amino acid sequence of a protein b. in the shape of a protein c. in the way the cell cycle is regulated d. that is beneficial to the cell e. all of the
answered
Aug 9, 2018
Biology
high-school
5
votes
17.2k
views
A sample of copper has a volume of 23.4 cm3 if the density of copper is 8.9 gcm3 what is the coppers mass?
answered
May 30, 2018
Physics
high-school
1
vote
57.6k
views
Helllppppppp the width of a rectangular garden is 9 feet, and its length is 12 feet. Three of these expressions equal the perimeter of the garden, in feet. Which expression does NOT? 9+12 9+12+9+12 2*9+2*12
answered
Feb 22, 2018
Mathematics
middle-school
2
votes
96.4k
views
Entering an intersection before you can safely cross through it, and blocking it:
answered
Feb 21, 2018
Social Studies
high-school
4
votes
1.7k
views
Which best explains why California’s application for statehood caused a sectional crisis? California’s entrance as a free state would upset the legislative balance in favor of the North. California’s entrance
answered
May 10, 2017
History
high-school
3
votes
47.8k
views
If a transversal is ___________to one of two parallel lines, then it is perpendicular to the other one also. perpendicular parallel corresponding
answered
Mar 2, 2017
Mathematics
high-school
3
votes
156k
views
Janine made a cylindrical vase in which the sum of the lateral area and area of one base was about 3000 square centimeters. The vase had a height of 50 centimeters. Find the radius of the vase. Explain
answered
Jan 27, 2017
Mathematics
high-school
4
votes
217k
views
Please show me how to do it.
answered
Jan 27, 2017
Mathematics
high-school
5
votes
211k
views
What fact does Einstein's equation E = mcÆ describe? A. energy can be converted to moles to atoms B. energy is stronger than mass C. mass can be converted to energy D. mass is weaker than energy
answered
Sep 11, 2016
Physics
high-school
3
votes
216k
views
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