This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A rock is thrown from the roof of a building, with an initial velocity of 10 m/s at an angle of 30 ... (Read 151 times)

vHAUNG6011

  • Hero Member
  • *****
  • Posts: 514
on: Jul 29, 2018
A rock is thrown from the roof of a building, with an initial velocity of 10 m/s at an angle of 30 above the horizontal. The rock is observed to strike the ground 43 m from the base of the building.
 
  What is the height of the building assuming no air resistance?

Question 2

A projectile is shot straight up from the surface of Earth by means of a very powerful cannon and experiences no appreciable air resistance.
 
  If the projectile reaches a height of 35,000 m above Earth's surface, what was the speed of the projectile when it left the cannon? (G = 6.67  10-11 N  m2/kg2, the radius of Earth is 6.38  106 m, and Mearth = 5.97  1024 kg) A) 355 m/s
  B) 505 m/s
  C) 827 m/s
  D) 710 m/s
  E) 906 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

leeeep

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 29, 2018
Answer to Question 1

96 m

Answer to Question 2

C


vHAUNG6011

  • Member
  • Posts: 514
Reply 2 on: Jul 29, 2018
Excellent

apple

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

People about to have surgery must tell their health care providers about all supplements they take.

A killer whale plays with a ball of ice, soon after a researcher had thrown a snowball at the whale. A killer whale plays with a ball of ice, soon after a researcher had thrown a snowball at the whale.
A watchful "rock chuck" or Yellow-bellied Marmot (Marmota flaviventris) atop Mount Dana, Y A watchful "rock chuck" or Yellow-bellied Marmot (Marmota flaviventris) atop Mount Dana, Y
On March 25, 1911, as scores of young factory girls leaped to their deaths from the eighth, ninth, a On March 25, 1911, as scores of young factory girls leaped to their deaths from the eighth, ninth, a
Teresa Hubbard and Alexander Birchler, Detached Building. Teresa Hubbard and Alexander Birchler, Detached Building.
Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change Distance from Initial Change in Membrane Potential vs. Voltage Change Relative to Initial Change
Find the final velocity of the object Find the final velocity of the object
Video: Language Areas Animation

For a complete list of videos, visit our video library