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Scorpion4ik [409]
3 years ago
12

Perception Distance + Reaction Distance + Braking Distance = _____________.

Physics
1 answer:
scZoUnD [109]3 years ago
4 0

Answer:

option B) is correct

Explanation:

perception distance is the distance traveled by  the vehicle when the driver perceive the hazard situation.

reaction distance  is the distance traveled by the vehicle after seeing the hazard situation and reacting to it.

Braking Distance is the distance traveled by the vehicle after applying the brake.

so, the sum of Perception Distance + Reaction Distance + Braking Distance is called the total stopping distance

hence option B) is correct .

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If a 75 W lightbulb is 15% efficient, how many joules of light energy does the bulb produce every minute?
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Answer:

11.25J

Explanation:

15=(output/75)x100

output =(75x15)/100=11.25J

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Isotopes of elements have different:
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If you wish to take a picture of a bullet traveling at 500 m/s, then a very brief flash of light produced by an RC discharge thr
ElenaW [278]

Explanation:

The given data is as follows.

       Speed of the bullet (v) = 500 m/s

     Distance during one RC time constant (d) = 1 mm = 1 \times 10^{-3} m

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Hence, formula for speed of the bullet is as follows.

                v = \frac{d}{t}

or,           t = \frac{d}{v}

Time constant for RC circuit is as follows.

          t = RC

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            = \frac{1 \times 10^{-3}}{500 \times 600 \times 10^{-6}}

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Thus, we can conclude that resistance in the flash tube is 3.33 \times 10^{-3} ohm.

3 0
3 years ago
When a cup is placed on a table, which force prevents the cup from falling to the ground? A. gravitational force B. normal force
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its B... normal force


6 0
3 years ago
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Bess [88]

Answer;

<u>= 56.96 mA</u>

Explanation;

From the Ohm's law;

V = IR, where V is the potential difference in volts, I is the electric current in amperes and R is the resistance in ohms.

V = 4.5 volts, R = 79 Ω

Making I the subject of the formula we get;

I =V/R

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But, 1 A = 1000 mA

Thus; 0.05696 × 1000

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3 years ago
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