« 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 83 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?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Examples of structures in which extensive surface area is important for function. Examples of structures in which extensive surface area is important for function.
The high-voltage disconnect switch is in the trunk area on a Toyota Prius. High-voltage lineman’s ... The high-voltage disconnect switch is in the trunk area on a Toyota Prius. High-voltage lineman’s ...
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 ...
A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ... A pool player is attempting a fancy shot. He hits the cue ball giving it a speed of 5.57 m/s ...
A simple harmonic oscillator has an amplitude of 3.50 cm and a maximum speed of A simple harmonic oscillator has an amplitude of 3.50 cm and a maximum speed of
The radius of a semicircle is 2 kilometers. What is the semicircle's area? The radius of a semicircle is 2 kilometers. What is the semicircle's area?
Video: Arthritis

For a complete list of videos, visit our video library