« previous next »

Author Question: Two tiny beads, each of mass 3.2 g, carry equal-magnitude charges. When they are placed 6.4 cm apart ... (Read 250 times)

washai

  • Hero Member
  • *****
  • Posts: 523
on: Jul 29, 2018
Two tiny beads, each of mass 3.2 g, carry equal-magnitude charges. When they are placed 6.4 cm apart and released in outer space, they begin to accelerate toward each other at 538 m/s2.
 
  What is the magnitude of the charge on each bead? (k = 1/40 = 9.0  109 N  m2/C2 ) A) 510 nC
  B) 44 nC
  C) 1800 nC
  D) 890 nC
  E) 1300 nC

Question 2

A spaceship traveling at constant velocity passes by Earth and later passes by Mars. In which frame of reference is the amount of time separating these two events the proper time?
 
  A) the Earth frame of reference
  B) the Mars frame of reference
  C) the spaceship frame of reference
  D) any inertial frame of reference
  E) any frame of reference, inertial or not
Physics ¦ Walker ¦ 5th Edition
Buy Test-Bank


ntsoane kedibone

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 29, 2018
Answer to Question 1

D

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

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?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

The Mass of Impacts on Earth The Mass of Impacts on Earth
An “Intermediate-Mass” Black Hole An “Intermediate-Mass” Black Hole
Patients of all socioeconomic backgrounds should be given equal care. Patients of all socioeconomic backgrounds should be given equal care.
Calculation of body mass index. To determine your BMI, find the value for your height on the left ... Calculation of body mass index. To determine your BMI, find the value for your height on the left ...
If the particle moves in a circle of radius 0.15 m at a speed of 3.0 m/s, what is the magnitude ... If the particle moves in a circle of radius 0.15 m at a speed of 3.0 m/s, what is the magnitude ...
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: Gastrin (gastric emptying) & Secretin (buffering gastric acid)

For a complete list of videos, visit our video library