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
Lubov Fominskaja [6]
3 years ago
13

which term refers to energy derived from heat inside the Earth ? a) geothermal energy b) solar energy c) fossil fuel d) volcanic

energy
Physics
1 answer:
Katyanochek1 [597]3 years ago
4 0
The answer is a) geothermal energy. I may be wrong, sorry!
You might be interested in
A child bounces a 52 g superball on the sidewalk. The velocity change of the superball is from 20 m/s downward to 14 m/s upward.
marusya05 [52]

Answer:

Force on superball will be =9.8222\times 10^{-4}N

Explanation:

We have given mass of superball m = 52 gram = 0.052 kg

Velocity change from 20 m/sec downward to 14 m/sec upward

Let downward velocity is positive then upward velocity is negative

So downward velocity is + 20 m/sec and upward velocity is -14 m/sec

Time is given as 1800 sec

We know that acceleration is rate of change of velocity

So a=\frac{20-(-14)}{1800}=0.0188m/sec^2

According to newton second law

Force = ma = 0.052×0.0188 =9.8222\times 10^{-4}N

6 0
3 years ago
Read 2 more answers
A 15-ft3 tank contains oxygen initially at 14.7 psia and 80°F. A paddle wheel within the tank is rotated until the pressure insi
Nikolay [14]

Explanation:

Equation for energy balance will be as follows.

         \Delta E_{system} = E_{in} - E_{out}

        \Delta U = W_{in} - Q_{out}

Hence,    W_{in} = Q_{out} + mC_{v} (T_{2} - T_{1})

Therefore, we will calculate the final temperature as follows.

            \frac{P_{1}V}{T_{1}} = \frac{P_{2}V}{T_{2}}

       T_{2} = \frac{20 psia}{14.7}(638 R)

                   = 868.03 R

Now, we will calculate the mass as follows.

             m = \frac{P_{1}V}{RT_{1}}

                 = \frac{14.7 psia \times 15 ft^{3}}{0.3353 psi ft^{3}/lbm R \times 638 R}

                 = 1.031 lbm

Hence,

        W_{in} = Q_{out} + mC_{v} (T_{2} - T_{1})

Putting the values into the above equation as follows.

            W_{in} = Q_{out} + mC_{v} (T_{2} - T_{1})

    W_{in} = 20 Btu + 1.031 lbm (\frac{0.160 Btu}{lbm R})(735 - 540)R

            W_{in} = 655.2 Btu

Thus, we can conclude that work done by paddle wheel is 655.2 Btu.

6 0
3 years ago
Who proposed the theory that mental processes originated in the brain?
Shtirlitz [24]
Plato was the one that suggested that the brain is the mechanism of mental process.
8 0
2 years ago
Read 2 more answers
Why is cheese only strechy when its hot not when its cold (i spelt stretchy wrong but i dont want to change it cuz that would ta
IgorC [24]
That is a really good question, cheese is stretchy when it is hot is because when you heat it up, it liquefies which makes it stretch. it doesn't stretch when it is cold because it is a solid and solids usually do not stretch.
8 0
3 years ago
In subduction, _____.
user100 [1]

The answer is the less dense plate slides over the denser plate.

4 0
3 years ago
Other questions:
  • Planets formed from ____ left over from the formation of the Sun at the center of the cloud. A. Gravel c. Solar wind b. Gas, ice
    8·2 answers
  • At high noon, the sun delivers 1150 w to each square meter of a blacktop road. if the hot asphalt loses energy only by radiation
    7·1 answer
  • A 1.0-kg block moving to the right at speed 3.0 m/s collides with an identical block also moving to the right at a speed 1.0 m/s
    14·1 answer
  • Do simple sugars provide short term energy?
    13·2 answers
  • n April 1974, Steve Prefontaine completed a 10 km race in a time of 27 min , 43.6 s . Suppose "Pre" was at the 7.57 km mark at a
    6·1 answer
  • Two trains travel toward each other on the same track, beginning 100 miles apart. One train travels at 40 miles per hour; the ot
    10·2 answers
  • What two things does light provide?
    9·1 answer
  • How do you measure the wavelength of wave?
    9·2 answers
  • What makes a planet different from other celestial bodies?.
    12·1 answer
  • Which of the following statements about electromagnetic radiation it true? A.electromagnetic waves with long wavelength are more
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!