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
____ [38]
3 years ago
12

1. List five exothermic reactions that are going on around you. (10 points)

Physics
1 answer:
KonstantinChe [14]3 years ago
5 0

Answer :

Exothermic reactions are those reactions in which a system releases its heat energy to surroundings whereas during endothermic reactions a system absorbs heat energy from surroundings.

Explanation :

Five exothermic reactions that are going on around us

a) Making of ice cubes

b) Rusting of iron

c) Nuclear fission reaction

d) Cellular respiration

e) Condensation of water vapor to form rain.

Following are some endothermic reactions;

1) Photosynthesis  6CO_{2}+12H_{2}O\xrightarrow[sunlight]{chlorophyll}C_{6}H_{12}O_{6}+6H_{2}O+6O_{2}

2) Mixing of water in Ammonium Nitrate NH_{4}NO_{3}(s)\overset{H_{2}O(l)}{\rightarrow}NH^{_{3}(aq)}+H_{3}O^{+}

You might be interested in
The diagram below shows a subduction zone where oceanic crust is sinking into the mantle underneath continental crust as two
Scrat [10]

Metal ores

Explanation:

in an area where subduction has occurred in times past, metal ores are likely to be found.

Metallic ores find subduction zone regions very favorable to crystallize out of a magma.

  • Ores have different modes of formation.
  • Typically, they are found in hydrothermal vents and black smokers of igneous intrusives.
  • These are igneous terrains where metallic sulfides and other minerals crystallize out of magmatic body.
  • Metals in magma usually have large sizes and do not partition easily in the melt.

At a subduction zone, partial melting of the subducting plate forces magma into nearby country rock as an intrusive and to the ocean floor where they form black smokers.

Learn more:

Rocks brainly.com/question/2740663

#learnwithBrainly

4 0
3 years ago
You are standing in front of a flat large mirror. As you step 1.0 m farther from the mirror, the distance between you and your i
Lesechka [4]

Answer:

2 meters

Explanation:

when you step away from a reflection you get farther

5 0
3 years ago
What is the strength of the electric field in a region where the electric potential is constant?
Roman55 [17]

Answer:

Where the electric potential is constant, the strength of the electric field is zero.

Explanation:

As a test charge moves in a given direction, the rate of change of the electric potential of the charge gives the potential gradient whose negative value is the same as the value of the electric field. In other words, the negative of the slope or gradient of electric potential (V) in a direction, say x, gives the electric field (Eₓ) in that direction. i.e

Eₓ = - dV / dx        ----------(i)

From equation (i) above, if electric potential (V) is constant, then the differential (which is the electric field) gives zero.

<em>Therefore, a constant electric potential means that electric field is zero.</em>

4 0
3 years ago
A proton and an electron are held in place on the x axis. The proton is at x = -d, while the electron is at x = +d. They are rel
Over [174]
The protons and electrons are held in place on the x axis.
The proton is at x = -d and the electron is at x = +d. They are released at the same time and the only force that affects movement is the electrostatic force that is applied on both subatomic particles. According to Newton's third law, the force Fpe exerted on protons by the electron is opposite in magnitude and direction to the force Fep exerted on the electron by the proton. That is, Fpe = - Fep. According to Newton's second law, this equation can be written as
                               Mp * ap = -Me * ae
where Mp and Me are the masses, and ap and ae are the accelerations of the proton and the electron, respectively. Since the mass of the electron is much smaller than the mass of the proton, in order for the equation above to hold, the acceleration of the electron at that moment must be considerably larger than the acceleration of the proton at that moment. Since electrons have much greater acceleration than protons, they achieve a faster rate than protons and therefore first reach the origin.
6 0
3 years ago
Un satélite geoestacionario se encuentra a una distancia de 120.000 km sobre la superficie de Júpiter. Determine: a. El periodo
Lisa [10]

Answer:

a) a geostationary satellite is that it is always at the same point with respect to the planet,

b) f = 2.7777 10⁻⁵ Hz

c)                           d)   w = 1.745 10⁻⁴ rad / s

Explanation:

a) The definition of a geostationary satellite is that it is always at the same point with respect to the planet, that is, its period of revolutions is the same as the period of the planet

  •                T = 10 h (3600 s / 1h) = 3.6 104 s

b) the period the frequency are related

                T = 1 / f

                 f = 1 / T

                 f = 1 / 3.6 104

                 f = 2.7777 10⁻⁵ Hz

c) the distance traveled by the satellite in 1 day

The distance traveled is equal to the length of the circumference

                 d = 2pi (R + r)

                 d = 2pi (69 911 103 + 120 106)

                 d = 1193.24 m

d) the angular velocity is the angle traveled between the time used.

                 .w = 2pi /t

                  w = 2pi / 3.6 10⁴

                  w = 1.745 10⁻⁴ rad / s

how fast is

                  v = w r

                  v = 1.75 10-4 (69.911 106 + 120 106)

                  v = 190017 m / s

5 0
3 years ago
Other questions:
  • Do deaf children go through the four stages of acquiring language? Use what you’ve read in the chapter to explain why or why not
    6·1 answer
  • A turbine of a coal burning installation delivers 1,500 hp of mechanical energy to a generator. The generator then converts 80.0
    8·1 answer
  • Rank the work done on the charged particles from highest to lowest
    6·1 answer
  • Which force keeps and object moving in a circle?​
    12·1 answer
  • As it travels through a crystal, a light wave is described by the function E(x,t)=Acos[(1.57×107)x−(2.93×1015)t]. In this expres
    13·1 answer
  • Which answer best describes the concept of metabolism?
    11·2 answers
  • What is the current in a circuit that has a resistance of 30.0 o and a power of 55.0 W?
    10·1 answer
  • A scientist measuring the resistivity of a new metal alloy left her ammeter in another lab, but she does have a magnetic field p
    8·1 answer
  • PLEASE HELP a current of 0.5 A flows with a resistance of 50 ohms what is the e.m.f applied NEED HELP ASAP AND BRAINLIEST​
    14·1 answer
  • The dense atmosphere of venus is ________, causing most incoming solar radiation to be _________.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!