subject
Physics, 01.08.2019 20:50 megankbrown

How are forest fires beneficial to conifers like jack pines? a. jack pine seeds are protected by forest fires. b. pine cones are carried on the winds produced by forest fires. c. forest fires release the seeds stored in jack pine cones. d. all of the above.

ansver
Answers: 2

Another question on Physics

question
Physics, 21.06.2019 15:30
1-10. need . physics. circular motion. 35 points
Answers: 1
question
Physics, 21.06.2019 16:00
The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.
Answers: 2
question
Physics, 21.06.2019 22:30
Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.
Answers: 1
question
Physics, 22.06.2019 08:50
You are given a vector a = 125i and an unknown vector b that is perpendicular to a. the cross-product of these two vectors is a × b = 98k. what is the y-component of vector b?
Answers: 1
You know the right answer?
How are forest fires beneficial to conifers like jack pines? a. jack pine seeds are protected by fo...
Questions
question
Mathematics, 24.06.2019 00:00
question
Mathematics, 24.06.2019 00:00