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
laila [671]
2 years ago
15

To determine power, we need to know the

Physics
2 answers:
Kipish [7]2 years ago
6 0
There are several formulas for power for different units but one of them  is voltage(current)=Power
vodomira [7]2 years ago
5 0
Force and Velocity or Work and Time

Power = Force * Velocity = Work / Time
You might be interested in
light spring of force constant k = 158 N/m rests vertically on the bottom of a large beaker of water (Figure a). A 4.36-kg block
Fantom [35]

Answer:

0.146 m

Explanation:

f = -KΔL according to Hooke's law

volume of water displaced = mass / density of block since a body will displace equal volume of its own

weight of water displaced = mass of water × acceleration due to gravity

and mass of water = volume of water / density of water

weight of water displaced = Vw × dw × g = mg (dw / dblock)

net force = mg - mg (dw / dblock) = 42.728  - 65.74 = -23.00

it will be balanced by a restoring force of 23 N

ΔL = F / k = 23 / 158 = 0.146 m

4 0
2 years ago
Compare the energy consumption of two commonly used items in the household. Calculate the energy used by a 1.40 kW toaster oven,
andrew-mc [135]

Energy = (power) x (time)

-- <u>For the toaster:</u>

Power = 1.4 kW  =  1,400 watts

Time = 5.4 minutes = 324 seconds

Energy = (1,400 W) x (324 s)  =  453,600 Joules

-- <u>For the CFL bulb:</u>

Power = 11 watts

Time = 10.5 hours = 37,800 seconds

Energy = (11 W) x (37,800 s)  =  415,800 Joules

-- The toaster uses energy at 127 times the rate of the CFL bulb.

-- The CFL bulb uses energy at 0.0079 times the rate of the toaster.

-- The toaster is used for 0.0086 times as long as the CFL bulb.

-- The CFL bulb is used for 116.7 times as long as the toaster.    

-- The toaster uses 9.1% more energy than the CFL bulb.

-- The CFL bulb uses 8.3% less energy than the toaster.  

7 0
2 years ago
What relationship exists betwen air resistance and acceleration of falling objects
ololo11 [35]
They both make a thing go faster and slower but the relationship is force.
5 0
3 years ago
Read 2 more answers
Conductors have ___<br> resistance.
vazorg [7]

Answer:

little/no

Explanation:

Conductors are materials, which conduct electricity and/or heat. That means, that their resistance to such energy is so little, that an electric current is able to pass through.

5 0
3 years ago
Can a vector be shorter than one of its components
Sauron [17]
It can never be shorter than a component - magnitude of avector is the square root of the sum of the components squared, and a square function never produces a negative number. However, it can be the same size as its component, if that component is the only one
3 0
3 years ago
Other questions:
  • Convert 14 miles per hour into metres per second ...give proper solution as well
    8·1 answer
  • What are the 4 rules of seismic waves?
    5·1 answer
  • The amount of heat needed
    5·1 answer
  • When a spring is compressed, the energy changes from kinetic to potential. Which best describes what is causing this change?
    9·2 answers
  • An electric generator consists of a circular coil of wire of radius 4.0×10−2 m , with 20 turns. The coil is located between the
    6·1 answer
  • A drag racer starts her car from rest and
    12·1 answer
  • What is the relationship between kinetic and potential energy of a falling object
    7·1 answer
  • A partially inflated balloon is faded over the open end of a glass beaker that contains water the beaker is placed in an ice bat
    8·1 answer
  • 15. Sandra decided to talk a walk at her neighborhood park. She walks 20 meters
    10·1 answer
  • According to Lenz's law, an induced current in the direction depicted in the picture would be created when: a. An external downw
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!