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

Author Question: A baseball outfielder throws a baseball of mass 0.15 kg at a speed of 40 m/s and initial angle of ... (Read 57 times)

jwb375

  • Hero Member
  • *****
  • Posts: 540
on: Jul 28, 2018
A baseball outfielder throws a baseball of mass 0.15 kg at a speed of 40 m/s and initial angle of 30. What is the kinetic energy of the baseball at the highest point of the trajectory?

Question 2

As a 1.0-kg object moves from point A to point B, it is acted upon by a single conservative force which does -40 J of work during this motion. At point A the speed of the particle is 6.0 m/s and the potential energy associated with the force is +50 J. What is the potential energy at point B?
 a. +72 J
  b. +10 J
  c. +90 J
  d. +28 J
  e. +68 J


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

aloop

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 28, 2018
Answer to Question 1

90 J

Answer to Question 2

C


jwb375

  • Member
  • Posts: 540
Reply 2 on: Jul 28, 2018
Excellent

elyse44

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Your heart beats over 36 million times a year.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.

Initial and final methanol concentrations Initial and final methanol concentrations
Finding the angle from a ratio (Part 2) Finding the angle from a ratio (Part 2)
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 ...
A spaceship leaves Earth at a steady forward speed of 70% the speed of light. How fast relative ... A spaceship leaves Earth at a steady forward speed of 70% the speed of light. How fast relative ...
Tragic events of mass shootings. Tragic events of mass shootings.
Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ... Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ...
Video: Corpus Callosum Animation

For a complete list of videos, visit our video library