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
Dennis_Churaev [7]
3 years ago
8

A microwave oven uses 1,200 watts. It runs a total of 6 hours during the corse of a week. How much energy does the microwave ove

n use during the week?? a 4.8 kilowatt-hours. b 5.0 kilowatt-hours. c 7.2 kilowatt-hours. d 6.5 kilowatt-hours.
Physics
1 answer:
zzz [600]3 years ago
5 0

Answer:

7.2 kilowatts

Explanation:

Energy= power x time

where:

power = 1,200watts to kilowatts is 1.2kw

time = 6hours

therefore,

energy = 1.2kw x 6hrs

=7.2 kilowatts

You might be interested in
An observer stands 24.7 m behind a marksman practicing at a rifle range. The marksman fires the rifle horizontally, the speed of
GaryK [48]

Explanation:

The given data is as follows.

     Velocity of bullet, c_{p} = 814.8 m/s

    Observer distance from marksman, d = 24.7 m

Let us assume that time necessary for report of rifle to reach the observer is t and will be calculated as follows.

               t = \frac{24.7}{343}      (velocity in air = 343 m/s)

                 = 0.072 sec

Now, before the observer hears the report the distance traveled by the bullet is as follows.

               d_{b} = c_{b} \times t

                          = 814.8 \times 0.072

                          = 58.66

                          = 59 (approx)

Thus, we can conclude that each bullet will travel a distance of 59 m.

8 0
3 years ago
HELPP WILL MARK BRAINLIEST!!!
guapka [62]
I guess it’s B cause that maybe is the output
3 0
3 years ago
Read 2 more answers
Can somebody help me please
Eddi Din [679]
51 inches.

This is because a stem-plot is formatted as so:

If it’s 5 on the left side of the line, anything on the right is the ones place making possible numbers 51, 53, 56, etc.

Hope this helps!
3 0
3 years ago
F-40N<br>m=5k<br>k = 0,2<br>a=? <br><br><br>​
tester [92]

Answer:

1......... .......... ......

3 0
3 years ago
The density (mass divided by volume) of pure water is 1.00 g/cm^3 that of whole blood is 1.05 g/cm^3 and the density of seawater
Stells [14]

Answer:

a) 5000 g

b) 5250 g

c) 5150 g

Explanation:

For easier calculations, the formulas will be converted from g/cm³ to kg/m³, and then back when we're done.

Density of pure water is 1 g/cm³

1 g/cm³ = 1 * 0.001/0.000001

1 g/cm³ = 1000 kg/m³, and thus,

Density of pure blood

1.05 g/cm³ = 1050 kg/m³

Density of seawater

1.03 g/cm³ = 1030 kg/m³

Recall that, Density = mass / volume, and as such, mass = density * volume.

Converting our volume from L to m³

1 m³ = 1000 L, and as such

1 L = 0.001 m³

5 L = 0.005 m³

Mass of pure water = 1000 * 0.005

Mass of pure water = 5 kg

Mass of pure blood = 1050 * 0.005

Mass of pure blood = 5.25 kg

Mass of seawater = 1030 * 0.005

Mass of seawater = 5.15 kg

Converting these masses back to g, we have

Mass of pure water = 5 kg * 1000 g

Mass of pure water = 5000 g

Mass of pure blood = 5.25 kg * 1000 g

Mass of pure blood = 5250 g

Mass of seawater = 5.15 kg * 1000 g

Mass of seawater = 5150 g

6 0
3 years ago
Other questions:
  • What is an electric motor? Explain its operation.
    8·2 answers
  • The second type of wave produced by an earthquake is an S wave (secondary wave), which is a transverse wave. It produces:
    7·2 answers
  • Shuffle a deck of cards and turn over the first card. What is the sample space of the experiment? How many outcomes are in the e
    14·1 answer
  • Dina has a mass of 50 kilograms and is waiting at the top of a ski slope that’s 5.0 meters high.
    7·2 answers
  • There are ___________ of galaxies in the universe containing __________ of stars in each galaxy.
    5·2 answers
  • Two wooden crates rest on top of one another. The smaller top crate has a mass of m1 = 25 kg and the larger bottom crate has a m
    14·1 answer
  • Which of the following are used in an electrochemical cell?
    11·1 answer
  • Thorium (Th) has an average atomic mass of 232.04 u and an atomic number of 90. In the space below, draw a square from the perio
    12·1 answer
  • What dose nuclear reactions produce?
    6·1 answer
  • The speed 120 km/h is about<br><br><br><br> 25 m/s<br><br> 33 m/s<br><br> 42 m/s<br><br> 50 m/s
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!