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 116 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
:D TYSM

kthug

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Forms of primary adult glaucoma: (a) in chronic open-angle glaucoma, the anterior chamber angle rema Forms of primary adult glaucoma: (a) in chronic open-angle glaucoma, the anterior chamber angle rema
Teresa Hubbard and Alexander Birchler, Detached Building. Teresa Hubbard and Alexander Birchler, Detached Building.
The rock cycle and the Earth’s physical environment The rock cycle and the Earth’s physical environment
Andean-Type Mountain Building Andean-Type Mountain Building
Finding the angle from a ratio (Part 1) Finding the angle from a ratio (Part 1)
In a room where g = 9.81 m/s2, a hockey puck slides off the edge of a platform with an initial ... In a room where g = 9.81 m/s2, a hockey puck slides off the edge of a platform with an initial ...
Video: Smoking Cessation

For a complete list of videos, visit our video library