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

Author Question: A 3.50-g bullet, traveling at 250 m/s, hits a hinged, light board at right angles, at a distance of ... (Read 54 times)

Capo

  • Hero Member
  • *****
  • Posts: 545
on: Jul 29, 2018
A 3.50-g bullet, traveling at 250 m/s, hits a hinged, light board at right angles, at a distance of 55.0 cm from its hinges, and emerges on the other side of the board with a speed of 150 m/s.
 
  The board is initially stationary but is free to rotate about its hinges and has a moment of inertia of 0.275 kgm2. What is the angular speed of the board after the bullet emerges? A) 0.700 rad/s
  B) 3.05 rad/s
  C) 6.10 rad/s
  D) 0.0212 rad/s
  E) 22.6 rad/s

Question 2

A person's eye lens is 2.7 cm away from the retina. What must the focal length of this lens be in order for an object placed at the near point (N = 25.0 cm) of the eye to focus on the retina?
 
  A) -3.4 cm
  B) -2.4 cm
  C) 2.4 cm
  D) 3.4 cm
  E) 2.6 cm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

karlss

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


Capo

  • Member
  • Posts: 545
Reply 2 on: Jul 29, 2018
:D TYSM

samiel-sayed

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

Did you know?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Medication errors are three times higher among children and infants than with adults.

How a photosystem harvests light. How a photosystem harvests light.
Mars's average distance from the Sun is roughly 230 million km (1.5 AU) and its orbital period Mars's average distance from the Sun is roughly 230 million km (1.5 AU) and its orbital period
Representative Light Curves of Eclipsing Binaries Representative Light Curves of Eclipsing Binaries
Dash Warning Lights: Coolant Temperature Light Dash Warning Lights: Coolant Temperature Light
Light palpation of abdomen Light palpation of abdomen
A monochromatic beam of light of wavelength 600 nm is incident normally on a diffraction ... A monochromatic beam of light of wavelength 600 nm is incident normally on a diffraction ...
Video: The 4 steps of translation Animation

For a complete list of videos, visit our video library