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2 years ago

As the distance between two charged objects increases, the strength of the electrical force between the objects

1 answer:

7 0

As the distance between two charged objects increases, the strength of the electrical force between the objects decreases.

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An object has a starting velocity of 20 m/s. If it accelerates at a rate of 2 m/s' for 3 seconds,

Ghella [55]

Answer:

26 m/s

69 m

Explanation:

Given:

v₀ = 20 m/s

a = 2 m/s²

t = 3 s

Find: v and Δx

v = at + v₀

v = (2 m/s²) (3 s) + 20 m/s

v = 26 m/s

Δx = v₀ t + ½ at²

Δx = (20 m/s) (3 s) + ½ (2 m/s²) (3 s)²

Δx = 69 m

3 0

3 years ago

Explain why the teenager and the wheelchair don't have the same kinetic energy, even though they have the same speed

Likurg_2 [28]

Answer:

their weight difference

Explanation:

weight adds to kinetic energy. a heavier object will have a higher kinetic energy because the extra weight will slowly increase or decrease the velocity depending on if it's being sent down a decline or inclined plane

7 0

1 year ago

If a driver brings a car traveling at 22m/s to a full stop in 2.0 s with an acceleration of -8 m/s2 then how far did the car tra

ozzi

Answer:

v=u + at

0= 22 + a*2

a = -22/2 = -11 m/s^2

The car's acceleration is -11 m/s^2

V^2 = u^2 + 2as

022^2 + 2*(-11)s

s = 22^2/22 = 22m

 The car will travel 22 m before stopping.

Explanation:

I hope it will help you have a great day bye and Mark brainlist if the answer is correct

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#carry on learning

8 0

2 years ago

A string is stretched and fixed at both ends, 200 cm apart. If the density of the string is 0.015 g/cm, and its tension is 600 N

Sergio [31]

Answer:

200cm

Explanation:

Answer:

100cm

Explanation:

Using

F= ( N/2L)(√T/u)

F1 will now be (0.5*2)( √600/0.015)

=> L( wavelength)= 200/2cm = 100cm

7 0

3 years ago

Displacement is the change in velocity of an object true or false

kati45 [8]

It is false. Displacement is distance is a specified direction.

8 0

2 years ago