« previous next »

Author Question: A pole-vaulter clears 5.00 m. With what speed does he strike the mat in the landing area? a. 2.70 ... (Read 35 times)

nramada

  • Hero Member
  • *****
  • Posts: 580
on: Jul 28, 2018
A pole-vaulter clears 5.00 m. With what speed does he strike the mat in the landing area?
 a. 2.70 m/s
  c. 10.8 m/s
  b. 9.90 m/s
  d. 21.6 m/s

Question 2

According to the second law of thermodynamics, which of the following applies to the heat received from a high temperature reservoir by a heat engine operating in a complete cycle?
 a. must be completely converted to work
  b. equals the entropy increase
  c. converted completely into internal energy
  d. cannot be completely converted to work


mariahkathleeen

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

The location of the fusiform face area and the MT area: Damage to the fusiform face area is ... The location of the fusiform face area and the MT area: Damage to the fusiform face area is ...
The locations of human primary somatosensory cortex (SI) and one area of secondary somatosensory ... The locations of human primary somatosensory cortex (SI) and one area of secondary somatosensory ...
Find the speed after 40.0 min if the initial speed is 3250 rev/min Find the speed after 40.0 min if the initial speed is 3250 rev/min
Effleurage to the entire area with moderate pressure as a finishing technique. Apply effleurage ... Effleurage to the entire area with moderate pressure as a finishing technique. Apply effleurage ...
Apply direct pressure along upper trapezius, turning the head to access the area. Use your thumb to ... Apply direct pressure along upper trapezius, turning the head to access the area. Use your thumb to ...
The diameter of a semicircle is 4 miles. What is the semicircle's area? The diameter of a semicircle is 4 miles. What is the semicircle's area?
Video: Mitosis step-by-step

For a complete list of videos, visit our video library