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

Author Question: A ball is projected into the air with 900 J of kinetic energy that is transformed to potential ... (Read 88 times)

Sufayan.ah

  • Hero Member
  • *****
  • Posts: 512
on: Jul 29, 2018
A ball is projected into the air with 900 J of kinetic energy that is transformed to potential energy at the top of its trajectory. When it returns to its original level after encountering air resistance, its kinetic energy is
 
  A) less than 900 J.
  B) more than 900 J.
  C) 900 J.
  D) not enough information

Question 2

A car moves 4 times as fast as another identical car. Compared with the slower car, the faster car has
 
  A) 4 times the kinetic energy.
  B) 8 times the kinetic energy.
  C) 12 times the kinetic energy.
  D) 16 times the kinetic energy.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

popopong

  • Sr. Member
  • ****
  • Posts: 307
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: D


Sufayan.ah

  • Hero Member
  • *****
  • Posts: 512
Reply #2 on: Jul 29, 2018
Thank you!


popopong

  • Sr. Member
  • ****
  • Posts: 307
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Did you know?

In inpatient settings, adverse drug events account for an estimated one in three of all hospital adverse events. They affect approximately 2 million hospital stays every year, and prolong hospital stays by between one and five days.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

The activation energy barrier. The activation energy barrier.
Energy flow and chemical cycling Energy flow and chemical cycling
Solar energy heats the atmosphere, creates seasons, and causes air to circulate Solar energy heats the atmosphere, creates seasons, and causes air to circulate
Generating Energy from Glucose When your body needs to break down glucose Generating Energy from Glucose When your body needs to break down glucose
Action Potential in a Ventricular Fiber Action Potential in a Ventricular Fiber
The flow of energy and the cycling of materials maintain nature’s organization The flow of energy and the cycling of materials maintain nature’s organization
Video: Blood Pressure Measurement

For a complete list of videos, visit our video library