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Dovator [93]
4 years ago
6

What is the dangerous component of a live electrical circuits

Physics
1 answer:
mojhsa [17]4 years ago
7 0

The bare wires that have electricity flowing through them that could kill or seriously injure a person.

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A car is traveling at a steady 73 km/h in a 50 km/h zone. A police motorcycle takes off at the instant the car passes it, accele
iVinArrow [24]

Answer:

29 m

Explanation:

given,

speed of the car = 73 Km/hr

                           = 73 x 0.278 m/s  = 20.3 m/s

Time elapses before the motorcycle is moving as fast as the car

using equation of motion

v = u + at

initial speed = 0 m/s

20.3= 0 + 7 x t

t = 2.9 s

b) distance traveled by the car in that time

  d = s x t

  d = 20.3 x 2.9 = 58.87 m

 distance traveled by the police

s = ut + \dfrac{1}{2} a t^2

s = 0 + \dfrac{1}{2}\times 7\times 2.9^2

s = 29.435 m

distance car is ahead = 58.57 - 29.44 = 29.13

                                    = 29 m

3 0
3 years ago
What is the kinetic energy of an object with a mass of 10 kilograms traveling at a speed of 10 meters per second?
bagirrra123 [75]

Answer:

500 J

Explanation:

Kinetic Energy = (mass x velocity x velocity) ÷ 2

We know that mass = 10 kg and velocity = 10 m/s.

KE = (m × v × v) ÷ 2

KE = (10 kg × 10 m/s × 10 m/s) ÷ 2

KE = 500 J

The kinetic energy of the object is 500 J (joules). Hope this helps, thank you !!

5 0
3 years ago
How can i solve this?
Luba_88 [7]
El peso anywhere = (mass) x (gravity there). Gravity en la Tierra = 9.81 m/s^2. Gravity en la Luna = 1.62 m/s^2.
4 0
3 years ago
Jada was walking home for 30 mins. How fast was she walking, if her house is 4 km away fron school?
earnstyle [38]

Answer:

8 km an hour (about 5mph)

Explanation:

It depends on what you are looking for because there is no unit specified, but if you want kilometers an hour then all you have to do is multiply both sides by 2.

30 x 2 = 60 (minutes)

4 x 2 = 8 (kilometers)

Hope this helped at least a little bit!

3 0
3 years ago
A man walks 7 km, east in 2 hours and 2 km in 1 hour in the same direction. a) what is
Rzqust [24]

Explanation:

Average speed = distance / time

|v| = (7 km + 2 km) / (2 hr + 1 hr)

|v| = 3 km/hr

Average velocity = displacement / time

v = (7 km east + 2 km east) / (2 hr + 1 hr)

v = 3 km/hr east

8 0
3 years ago
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