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tatiyna
2 years ago
5

A car slows down from +40 m/s to a complete stop in 10 s. What is its acceleration?

Physics
1 answer:
Viefleur [7K]2 years ago
6 0

Answer:

-4 [m/s²].

Explanation:

1) formula of the required acceleration is

a=(V-V₀)/t, where V - final velocity, V₀ - initial velocity [40m/s], t - elapsed time (10s).

According to the condition the final velocity V=0, then

2) a=(0-40)/10= -4 [m/s²].

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A. There is less current flowing through the bulb.

Ohms law dictates that Electrical voltage = current x resistance. To understand current you would divide voltage by resistance. The less voltage the less current will run through the circuit.

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3 years ago
Subduction occurs at which of the following tectonic plate boundaries?
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5 0
3 years ago
The main water line enters a house on the first floor. The line has a gauge pressure of 1.94 x 105 Pa. (a) A faucet on the secon
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Answer

given,

gauge pressure =   1.94 x 10⁵ Pa

Pressure due to 4.90 m column of water

= ρ g h

= (4.90) x  (1000)  x (9.8) Pa

= 48020 Pa

Gauge pressure of second floor faucet

= 1.94 x 10⁵Pa - 48020 Pa

P_g= 145980 Pa

( b )

Let h = height of faucet from which no water can flow even if open

P = ρ g h

1.94 x 10⁵  = h x(1000) x (9.8)

h = 19.79 m

4 0
3 years ago
(6.MS-ETS2-1(MA).) The electrons in __________ move about more freely than the electrons in insulators which is why this type of
Tresset [83]

Answer:

A) conductors

Explanation:

A conductor can be defined as any material or object that allows the free flow of current or electrons (charge) in one or more directions in an electrical circuit. Some examples of a conductor are metals, tungsten, copper, aluminum, iron, graphite, etc.

Basically, the main purpose of a conductor in physics is to provide a low-resistance path between electrical circuits or components. This low-resistance path is to ensure that the electrical components allows the free flow of electrons and thus, enabling charge transfer.

Hence, the electrons in conductors move about more freely than the electrons in insulators which is why this type of material can be used to create electric circuits because it would significantly provide a low-resistance path between the electric circuits.

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The law of conservation of energy states...
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Can neither be created or destroyed.
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3 years ago
Read 2 more answers
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