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erma4kov [3.2K]
3 years ago
10

A boy takes 20 minutes to cover 3.2 km on a bicycle find the speed in km/hr​

Physics
1 answer:
Murrr4er [49]3 years ago
4 0

Answer:

9.6 km/h

Explanation:

20 minutes=1/3 minute.

The speed of the bicycle: 3.2:1/3=9.6 km/h.

Answer: 9.6 km/h

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The statement that is true concerning an atom would be C. The atomic number of an atom is equal to the number of protons.
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Which of the following waves travel at the greatest speed
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A 3.1-kilogram gun initially at rest is free to
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The conservation of momentum states that the total momentum in a system is constant if there is no external force acting on the system. The total momentum in the gun bullet system is 0 so it must stay that way.

The momentum of the bullet is mv = 0.015*500=7.5
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A spring stretches 5 cm when a 300-N mass is suspended from it. Calculate the spring constant in N / m .
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Spring constant in N / m = 6,000

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8 0
2 years ago
A cyclist rides 6.2 km east, then 9.28 km in a direction 27.27 degrees west of north, then 7.99 km west. A. What is the magnitud
Pani-rosa [81]

Answer:

Explanation:

given,

cyclist ride  6.2 km east and then 9.28 km in the direction of 27.27° west of north and then 7.99 km west.

vertical component = 9.28 cos∅

                                = 9.28 cos 27.27°

                                = 8.24 km

horizontal axis component = 9.28 sin ∅

                                             = 9.28 sin 27.27°

                                             = 4.5 km

distance of the final point from the origin

                            = 7.99 -(6.2-4.5)

                            = 6.29 km

displacement

d = \sqrt{6.29^2+8.24^2}

d = 10.37 km

b) tan \theta = \dfrac{6.29}{8.24}

θ = 37.36°

4 0
3 years ago
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