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

Author Question: The velocity of a particle (m = 10 mg, q = -4.0 mC) at t = 0 is 20 m/s in the positive x direction. ... (Read 197 times)

LCritchfi

  • Hero Member
  • *****
  • Posts: 519
on: Jul 28, 2018
The velocity of a particle (m = 10 mg, q = -4.0 mC) at t = 0 is 20 m/s in the positive x direction. If the particle moves in a uniform electric field of 20 N/C in the positive x direction, what is the particle's speed at t = 5.0 s?
 a. 60 m/s
  b. 20 m/s
  c. 45 m/s
  d. 40 m/s
  e. 70 m/s

Question 2

A charge of 50-mC is placed on the y axis at y = 3.0 cm and a 77-mC charge is placed on the x axis at x = 4.0 cm. If both charges are held fixed, what is the magnitude of the initial acceleration of an electron released from rest at the origin?
 a. 1.2  1020 m/s2
  b. 1.5  1020 m/s2
  c. 1.0  1020 m/s2
  d. 1.8  1020 m/s2
  e. 2.0  1020 m/s2


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ashley I

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 28, 2018
Answer to Question 1

B

Answer to Question 2

A


LCritchfi

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Jul 28, 2018
Both answers were spot on, thank you once again


Ashley I

  • Sr. Member
  • ****
  • Posts: 344
Reply #3 on: Jul 28, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

Cell-wall structure of Gram-positive and Gram-negative bacteria. Cell-wall structure of Gram-positive and Gram-negative bacteria.
The direction of signals conducted orthodromically through a typical multipolar neuron. The direction of signals conducted orthodromically through a typical multipolar neuron.
OraQuick. A negative result would show a red line at the "C" mark, whereas a positive ... OraQuick. A negative result would show a red line at the "C" mark, whereas a positive ...
energy of interaction and distance of particle energy of interaction and distance of particle
Positive and Negative Reinforcement Positive and Negative Reinforcement
Particle Sizes Involved in Condensation and Precipitation Particle Sizes Involved in Condensation and Precipitation
Video: Mendel's Principles of Inheritance (Father of Genetics)

For a complete list of videos, visit our video library