1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kobotan [32]
3 years ago
10

7. Which of the following is a disadvantage of an electromagnet?

Engineering
1 answer:
Sati [7]3 years ago
7 0

Answer:

I think

electromagnets require power to operate

You might be interested in
Which option is an example of a physical model?
Burka [1]

Answer:

A. A clay ball with a slice cut out, showing the layers of the earth

Explanation:

6 0
4 years ago
Consider a refrigerator that consumes 320 W of electric power when it is running. If the refrigerator runs only one quarter of t
Semenov [28]

Answer:

B. $5.18

Explanation:

Cost of electricity per kWh = $0.09

Power consumption of refrigerator = 320W = 320/1000 = 0.32kW

In a month (30 days) the refrigerator works 1/4 × 30 days = 7.5 days = 7.5 × 24 hours = 180 hours

Energy consumed in 180 hours = 0.32kW × 180h = 57.6kWh

Cost of electricity of 57.6kWh energy consumed by the refrigerator = 57.6 × $0.09 = $5.18

3 0
3 years ago
Read 2 more answers
A. Paleozoic
garri49 [273]
Pretty sure it’s Cenozoic
5 0
3 years ago
Read 2 more answers
Based on the concept that it is better to prevent falls happening in the first place, which of the following safety methods meet
alekssr [168]

Answer:fall arrest harness

Explanation:cuz it’s just right

7 0
3 years ago
In the case of an automobile electric system, the chassis of the vehicle is the ___________ side of the circuit.
ankoles [38]

Answer:

  ground

Explanation:

In modern cars, the chassis is connected to the negative terminal of the battery, and provides the "ground" or "return" for the circuit.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Describe the meaning of the different symbols and abbreviations found on the drawings/documents that they use (such as BS8888, s
    12·1 answer
  • A negative pressure respirator brings fresh air to you through a hose<br>A) True<br>B)False​
    15·2 answers
  • A 2.2-kg model rocket is launched vertically and reaches an altitude of 70 m with a speed of 30 m/s at the end of powered flight
    5·1 answer
  • Find the equivalent impedance Zeq seen by the source when Vs = 2 cos (5t) v, C = 0.2 F, R = 1 Ω and L = 0.1 H. (Give angles in d
    12·1 answer
  • The Review_c object has a lookup relationship up to the Job_Application_c object. The job_Application_c object has a master-deta
    7·1 answer
  • Write a function named is_float(s) that takes one argument that is a string. It returns True if string s represents a floating p
    6·1 answer
  • What are the benefits of using the engineering design process
    7·1 answer
  • Estimate the luminosity of a 3 -solar-mass main-sequence star; of a 9 -solar-mass main-sequence star. Can you easily estimate th
    5·1 answer
  • What is the force in kN of work done is 1.2 ms moves through 120m​
    15·1 answer
  • Design an algorithm for computing √n
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!