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

Author Question: A proton moving at a speed of 3.8 106 m/s cuts across the lines of a magnetic field at an angle of ... (Read 87 times)

HCHenry

  • Hero Member
  • *****
  • Posts: 591
on: Jul 28, 2018
A proton moving at a speed of 3.8  106 m/s cuts across the lines of a magnetic field at an angle of 40. The strength of the field is 0.25  10-4 T. What is the magnitude of the force acting on the proton? (qp = 1.6  10-19 C)
 a. 1.4  10-17 N
  c. 9.8  10-18 N
  b. 2.3  10-17 N
  d. 5.1  10-18 N

Question 2

A balloon of negligible mass is filled with 300 m3 of helium. How big a payload can the balloon lift? (The density of air is 1.29 kg/m3; the density of helium is 0.18 kg/m3.)
 a. 150 kg
  c. 333 kg
  b. 300 kg
  d. 444 kg


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kescobar@64

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

C


HCHenry

  • Member
  • Posts: 591
Reply 2 on: Jul 28, 2018
:D TYSM

Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Over time, chronic hepatitis B virus and hepatitis C virus infections can progress to advanced liver disease, liver failure, and hepatocellular carcinoma. Unlike other forms, more than 80% of hepatitis C infections become chronic and lead to liver disease. When combined with hepatitis B, hepatitis C now accounts for 75% percent of all cases of liver disease around the world. Liver failure caused by hepatitis C is now leading cause of liver transplants in the United States.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Imaginary Thoracic Lines, Anterior View Imaginary Thoracic Lines, Anterior View
Placing sterile item on a sterile field Placing sterile item on a sterile field
A rapidly vibrating needle at idle that becomes steady as engine speed is increased indicates worn ... A rapidly vibrating needle at idle that becomes steady as engine speed is increased indicates worn ...
A solenoid has an area of 41.0 cm2. Find the change in magnetic flux through the solenoid. A solenoid has an area of 41.0 cm2. Find the change in magnetic flux through the solenoid.
Magnetic Force on a Current Carrying Conductor Magnetic Force on a Current Carrying Conductor
Video: Net filtration pressure and lymph formation, edema & blood velocity

For a complete list of videos, visit our video library