About half of the electricity in the United States comes from burning _____. coal oil natural gas methane

Answers

Answer 1
Answer: i'm pretty sure the answer is burning coal 
Answer 2
Answer:

I say oil...................


Related Questions

Farmer Wilcox wants to reduce the wind velocity near his farm. He should _____.add dead leaves to his fieldscut down trees surrounding his fieldsplant trees around the perimeter of his fieldsirrigate his fields during dry seasons and droughts
Which describes a grizzly bear’s habitat? all the biotic factors in the ecosystem all the abiotic factors in the ecosystem the role of the bear in the ecosystem the physical area where the bear lives
Which types of radioactive decay cause the parent nucleus to become a different element or isotope (and thus are useful for radioactive dating)? Group of answer choices Alpha decay Beta decay Gamma decay Both alpha and beta decay Both beta and gamma decay All three: alpha, beta, and gamma decay
What is the acceleration of a 6.4 kilogram bowling ball if a force of 12 N is applied to it?
A 45.2-kg wagon is towed up a hill inclined at 18.5∘ with respect to the horizontal. The tow rope is parallel to the incline and has a tension of 191 N in it. Assume that the wagon starts from rest at the bottom of the hill, and neglect friction. How fast is the wagon going after moving 83.8 m up the hill?

An observer notes that the pitch of a sound is becoming progressively lower. The observer can conclude that the sound is moving

Answers

He can conclude that the source of the sound is moving away from him and that its speed is increasing.
The source of the sound is moving away from the receiver.

Total discharge head includes?

Answers

The term “total” indicates that it includes the static pressure head (h), the velocity head (hv), and the elevation head (Z).

Physical fitness involves the proper functioning of which body systems?Select all that apply.
auditory
circulatory
respiratory
integumentary
muscular
reproductive

Answers

Answer: circulatory

respiratory

muscular

Explanation:

The physical fitness can be define as the state of well being and health. It indicates towards the ability of the organisms to perform various aspects of physical activities such as sports, daily routine work, and occupational tasks. It is achieved by moderate to vigorous physical exercises, sufficient amount of rests and proper nutrition.

The physical fitness involves the proper functioning of the vital systems of the body these includes the respiratory, circulatory and muscular. As the body performs exercise it requires more amount of oxygen also the muscles performing activity deprive of the oxygen, the rate of respiration increases, more amount of blood is pumped out by the heart to fulfill the need of oxygen.

Respiratory
Circulatory
Muscular

What factors could slow down a reaction time?

Answers

Answer: To keep it basic start with temprature and inhibitors such as drugs that slow enzymes

surface area, temperature, concentration, and the presence of catalysts and inhibitors

Explanation:To slow down a reaction, you need to do the opposite. Factors that can affect rates of reactions include surface area, temperature, concentration, and the presence of catalysts and inhibitors. Temperature - Changing the temperature of a chemical reaction also affects the reaction rate.

Answer:

In driving, changes by fractions of a second in reaction time may mean the difference between a collision or the avoidance of one. On the road, distractions, speed, driving experience, and physical and cognitive fitness can seriously affect reaction times.

Explanation:

ig this

An electron in a hydrogen atom undergoes a transition from the n = 3 level to the n = 6 level. To accomplish this, energy, in the form of light, must be absorbed by the hydrogen atom. Calculate the energy of the light (in kJ/photon) associated with this transition.

Answers

Answer:1.816* 10^(-19) J

Explanation:

Given

E=(hc)/(\lambda )

E=2.18* 10^(-18)((1)/(n_1^2)-(1)/(n_2^2))

where h=Planck constant

c=speed of light

E=2.18* 10^(-18)((1)/(3^2)-(1)/(6^2))

E=2.18* 10^(-18)* (1)/(12)

E=1.816* 10^(-19) J

Answer:

1.82 × 10⁻¹⁹ J

Explanation:

The Bohr model of the atom states that the energy required to transition between two energy levels is equal to the difference between the inverse squares of the energy levels multiplied by the Rydberg constant:

As a liquid is added to a beaker, the pressure exerted by the liquid on the bottom of the beaker ________.

Answers

Answer:

Explanation:

Hydraulic systems is based on the principle of Pascals principle. Pascal's principle states that " Pressure applied to the to a fluid in a closed container (at rest) is transmitted equally to every point of the fluid and on the walls of the container".

As a liquid is added to a beaker, the pressure exerted by the liquid on the bottom of the beaker increases compared to the liquid near at the tip of the beaker.  Pressure increases as depth increases in any form of matter.