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
pochemuha
2 years ago
12

A skier IS skiing down a slope on the mountain.

Mathematics
2 answers:
kodGreya [7K]2 years ago
6 0

Answer:

The mechanical energy is not conserved

Step-by-step explanation:

Recall that the law of conservation of energy states that in an isolated system (no external forces acting on it), the mechanical energy is conserved.

A skier skiing down a slope is not an isolated system in this case because the friction of the snow causes some of the mechanical energy to convert to thermal energy.

bogdanovich [222]2 years ago
5 0

Answer:

The mechanical energy isn't conserved.

Step-by-step explanation:

Honeslty I think you should Start cheatin on your Hw

You might be interested in
P is the probability of a certain event. Which of the following indicates that P is certain to happen?
podryga [215]
Note for probability, if it will never happen the P = 0. If it must happen P = 1.

So certain to happen:

C. P=1

8 0
2 years ago
Read 2 more answers
A playground has the shape of a trapezoid.
Dmitrij [34]

Answer:

  • short base: 6 yards
  • long base: 8 yards

Step-by-step explanation:

Our understanding of your figure is shown below.

The question says the "shortest side" and the "width" have the same dimension. If the "width" is a reference to "height 6 yards", then it seems the "shortest side" is 6 yards. Since the slant sides are longer than the height, the "shortest side" is also the "short base."

The short base is 6 yards.

__

The long base overhangs the short base by 1 yard on either end, so it is a total of 2 yards longer than the short base. It it 6+2 = 8 yards long.

The long base is 8 yards.

6 0
3 years ago
There are approximately 113 million TVs in the United States. Each uses, on average, 76 W of power and is turned on for 6.3 hour
ioda

Answer:

76 W *\frac{1kW}{1000 W}= 0.076 kW

0.076 kW * 6.3 \frac{hours}{day}= 0.4788 \frac{kWh}{day}

113x10^6 people * \frac{0.4788 kWh}{people}= 54104400 kWh

And finally we can convert this into money like this:

54104400 kWh *\frac{0.089 dollars}{1 kWh}= 4815291.6

So they spent every day approximately in total $ 4815291.6 dollars

Step-by-step explanation:

For this case we can convert the average power into Kw like this:

76 W *\frac{1kW}{1000 W}= 0.076 kW

Now on average we know that one person use on average this power over 6.3 hours per day so then we have the following consumption rate:

0.076 kW * 6.3 \frac{hours}{day}= 0.4788 \frac{kWh}{day}

And now we know the total population so then the total consumption per day would be:

113x10^6 people * \frac{0.4788 kWh}{people}= 54104400 kWh

And finally we can convert this into money like this:

54104400 kWh *\frac{0.089 dollars}{1 kWh}= 4815291.6

So they spent every day approximately in total $ 4815291.6 dollars

6 0
2 years ago
Read 2 more answers
Brenda and Lynne cut shapes from
Fed [463]

Answer:

8

Step-by-step explanation:

32/4

8 0
2 years ago
Write the quadratic equation the has the roots (-1-√2)/3 and (-1+√2)/3 if its coefficient with x^2 is equal to...1
DerKrebs [107]

Step-by-step explanation:

x1+x2 = (-1-√2)/3 + (-1+√2)/3

= -2/3

(x1) (x2) = (-1-√2)/3 × (-1+√2)/3

= -1/9

the equation :

x² -(-2/3)x + (-1/9) = 0

x² + ⅔ x - 1/9 = 0

5 0
2 years ago
Other questions:
  • SOS!!!!!!!!!!PLEASE HELP!!!!!!!!!!!!!! I BEG YOU!!!!!!!!!!!!!!!!!!!!!
    6·1 answer
  • The circle graph shows how a family budgets its annual income. If the total annual income is $140,000, what amount is budgeted f
    14·2 answers
  • What is the slope of a line that passes through the points (4, 2) and (8, 5) *
    10·1 answer
  • Nicole earns $40,768 per year, what are her weekly gross earnings?
    12·2 answers
  • 5. What method can be use to prove the triangles below are congruent?
    10·2 answers
  • I really need help with this ASAP​
    9·1 answer
  • Do you guys ever just sit there and realize how not ok you are?
    5·2 answers
  • 2 L = _____ ml can someone help? :((
    6·2 answers
  • The sum of 5 consecutive odd integers is 425. Find the integers.
    5·1 answer
  • What is the greatest<br> common factor (GCF)<br> of 40 and 42?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!