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

Author Question: A transformer with 120. turns in its secondary supplies 12. volts at 220. ma to a toy train. The ... (Read 103 times)

Starlight

  • Hero Member
  • *****
  • Posts: 567
on: Jul 29, 2018
A transformer with 120. turns in its secondary supplies 12. volts at 220. ma to a toy train. The primary is connected across a 120. V wall outlet.
 
  (a) How many turns are in the primary?
  (b) What is the primary current?
  (c) What power is delivered by the wall outlet?

Question 2

An asteroid approaches Earth so that when it is very far away it is traveling with a speed of 6500 m/s along a line that would miss the center of Earth by 8,500,000 m.
 
  Because of the gravitational attraction of Earth, it departs from this straight line and curves towards Earth, colliding with it. In what direction, below the local horizontal, is the asteroid traveling when it hits Earth? The mass of Earth is 5.97  1024 kg and G = 6.67 x 10-11 Nm2/kg2. A) 48
  B) 58
  C) 68
  D) 78
  E) 88


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

peilian

  • Sr. Member
  • ****
  • Posts: 316
Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 1.2  103
(b) 22.0 mA
(c) 2.64 watts

Answer to Question 2

A


Starlight

  • Member
  • Posts: 567
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

Bigfoot1984

  • Member
  • Posts: 321
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

The cotton-top tamarin (Saguinus oedipus), also known as the Pinche tamarin, is a small New W The cotton-top tamarin (Saguinus oedipus), also known as the Pinche tamarin, is a small New W
The shut-off switch on a GM parallel hybrid truck is green because this system uses 42 volts instead ... The shut-off switch on a GM parallel hybrid truck is green because this system uses 42 volts instead ...
Typical secondary ignition pattern. Note the lack of firing lines on superimposed pattern. Typical secondary ignition pattern. Note the lack of firing lines on superimposed pattern.
A typical evaporative emission control system. Note that when the computer turns on the canister ... A typical evaporative emission control system. Note that when the computer turns on the canister ...
Plasticity of Secondary and Tertiary DNA Structure Plasticity of Secondary and Tertiary DNA Structure
Formation of primary and secondary lysosomes and their role in cellular digestive Formation of primary and secondary lysosomes and their role in cellular digestive
Video: Glomerubular filtrate rate -pressures that affect GFR and net filtration pressure

For a complete list of videos, visit our video library