The equation NaCl →Na +Cl is a ______ reaction. A. decomposition B. single displacement C. synthesis

Answers

Answer 1

Answer: The correct answer is (a.) decomposition. The equation NaCl --> Na + Cl is a decomposition reaction. That is because the synthesis reaction looks like this Na + Cl = NaCl, and is the opposite of the decomposition. The decomposition reaction is the chemical reaction in which a single compound break into new compounds.

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Bilangan 0,000 000 0124 bila di tulis dengan notasi ilmiah adalah

Answers

Notasi ilmiah adalah cara penulisan nomor yang terlalu besar atau kecil untuk dengan mudah ditulis dalam notasi desimal standar
jawaban :
0,000 000 0124
;1,24×10-8 (1/10 pangkat 8)

An object is thrown downward with an initial velocity of 3 feet per second. The relationship between the distance s it travels and time t is given by s = 3t + 16t2. How long does it take the object to fall 70 feet?

Answers

Answer:2 s

Explanation:

Given

initial velocity $u=3 ft/s$

distance travel $s=3t+16t^2$

time taken to travel 70 feet

$70=3t+16t^2$

$16t^2+3t-70=0$

using $x=(-b\pm √(b^2-4ac))/(2a)$ to get roots

$t=(-3\pm √(3^2-4(16)(-70)))/(2\cdot 2)$

t=2 and -2.19

only feasible time is 2 s

thus it requires 2 s to cover 70 feet

The intense heat from Earth's interior that warms the magma beneath Earth's surface is called?

Answers

Answer:

Geothermal energy

Explanation:

The geothermal energy causes the interior of the Earth to warm up. It warms the magma beneath the surface of the Earth. It is derived within the subsurface by water or wind. It is also used to generate electricity in geothermal power plants. Hot water reservoirs can be found deep in earth's surface. Its steam is used to rotate the turbines and electricity can be generated.

Its called Geothermal Energy that is the source of the heat inside the earth from its mantle to its core. It can be use electrical energy but only when it will be converted. This energy allows the earth to maintain its temperature.

A second baseman tosses the ball to a first baseman, who catches it a the same level from which it was thrown. The throw is made with an initial speed o 19.0 m/s at an angle of 37 degrees above the horizontal. Neglect air resistance. How long is the ball in the air?

Answers

-- The toss was directed 37° above horizontal, at 19 m/s.

The horizontal component is 19 cos(37°) = 15.174 m/s .

The vertical component is 19 sin(37°) = 11.434 m/s .

The ball will continue to climb until its vertical speed is zero,
then will begin falling. It'll fall to the same level from which
it was thrown in the same time it spent rising.

Time spent rising = (11.434 m/s) / (acceleration of gravity) = 11.434/9.8 = 1.166 second.

Return to the same level from which it was thrown in (2 x 1.166) = 2.332 seconds.

The ball is in the air for 2.332 seconds.

In that amount of time, it travels horizontally (2.332) x (15.174) = 35.39 meters.

If you are over-driving your headlights and you see an object ahead, you will_____. be given the right-of-way from other vehicles not be able to stop in time to miss the object need to execute a high-speed U-turn be able to stop, but may graze the object.

Answers

Answer: not be able to stop in time to miss the object

Explanation:

The phrase "Over-driving your headlights" means that a person is driving at such a speed that the vehicle's stopping distance is greater than the maximum viewable distance with the headlights on.

When this occurs, it will be impossible for the vehicle to stop moving in time to avoid an object viewed by the driver in the range of his headlights.

This is a dangerous driving practice and can be avoided by driving at reduced speeds.

Final answer:

Over-driving your headlights implies a situation where you are driving so fast that you won't be able to stop within the area illuminated by your headlights. Therefore, if you see an object in your path under such circumstances, you are likely not going to be able to stop in time to avoid hitting it. Headlights' range is usually 350 feet, and driving at a speed that requires a stopping distance greater than 350 feet is considered over-driving your headlights.

Explanation:

The phrase 'over-driving your headlights' refers to a situation where a driver is traveling at such a speed that their stopping distance is further than the distance illuminated by their headlights. Thus, if an object is within your path, you won't have enough time to stop your vehicle before hitting it, especially if you're speeding.

On most roads, the farthest your headlights can help you see ahead is around 350 feet. If you're driving faster than a speed that permits you to stop within these 350 feet, you're said to be 'over-driving' your headlights. If you're over-driving your headlights, and you see an object ahead then you will most likely not be able to stop in time to miss the object. This is because your vehicle's stopping distance will be greater than your visual distance, which is dependent on the capabilities of your headlights.

Learn more about Over-driving headlights here:

brainly.com/question/169113

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What is an example of a sport related activity A .Weight lifting B.Soccer C.Jumping rope D.Running A Race

Answers

The correct answer is B. Soccer.
Hope this helps and have a good night! :3

sports are games so lets do process of elimination
A.) weight lifting (exercise)
B.) Soccer (sport)
C.) jump rope (exercise)
D.) Running a race (exercise) but questionable

i would say B.) soccer
hehe

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