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

Author Question: At the top of a cliff 100 m high, Raoul throws a rock upward with velocity 20.0 m/s. How much later ... (Read 123 times)

altibaby

  • Hero Member
  • *****
  • Posts: 562
on: Jul 28, 2018
At the top of a cliff 100 m high, Raoul throws a rock upward with velocity 20.0 m/s. How much later should he drop a second rock from rest so both rocks arrive simultaneously at the bottom of the cliff?
 a. 5.05 s
  c. 2.48 s
  b. 3.76 s
  d. 1.78 s

Question 2

Human reaction time is usually about 0.20 s. If your lab partner holds a ruler between your finger and thumb and releases it without warning, how far can you expect the ruler to fall before you catch it? The nearest value is:
 a. 4.0 cm.
  c. 16 cm.
  b. 9.8 cm.
  d. 20 cm.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

allisonblackmore

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

D


altibaby

  • Member
  • Posts: 562
Reply 2 on: Jul 28, 2018
Excellent

6ana001

  • Member
  • Posts: 311
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

Anesthesia awareness is a potentially disturbing adverse effect wherein patients who have been paralyzed with muscle relaxants may awaken. They may be aware of their surroundings but unable to communicate or move. Neurologic monitoring equipment that helps to more closely check the patient's anesthesia stages is now available to avoid the occurrence of anesthesia awareness.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Modern primate study sometimes involves high-tech methods. This golden lion tamarin is having a batt Modern primate study sometimes involves high-tech methods. This golden lion tamarin is having a batt
Granite: a Common Rock in Continental Crust Granite: a Common Rock in Continental Crust
The main avenue to the upward social mobility reviewed in the text has been higher education. The main avenue to the upward social mobility reviewed in the text has been higher education.
Foods High in Tyramine Foods High in Tyramine
Step stool can help clients get onto and off of a high table. Step stool can help clients get onto and off of a high table.
Tummy rock to release energy blocks in the torso and head. Tummy rock to release energy blocks in the torso and head.
Video: Inflammation and Fever

For a complete list of videos, visit our video library