Physics, 06.04.2021 20:10 shaferxspecial3737

# Time (seconds)
The slope on a distance-time graph shows a ball moving from 20 m to 40 min 1s and from 40 m to 30 m in the next

second.

Which describes the ball's motion between 20 m and 80 m on the graph?

O nonlinear, acceleration

O nonlinear constant speed

O linear, acceleration

© linear constant speed

Answers: 2

Answer from: Quest

Then the answer would be d then

Answer from: Quest

answer///scientific method;

Answer from: Quest

Answer: a charge of -1.0 × 10⁻⁴ c must be placed at x = 26 m.the sign of the charge will be the same sign as the -4.0 µc charge.======electricstatic force between two point charges is given by where k is coulomb's constant, 8.99×10⁹ n·m²/c², q₁ and q₂ are the point charges, and r is the distance between the two point charges.assign positive to q₁let q₁ = 6.0 µc, q₂ = -4.0 µc, q₀ represent the charge at the origin, and q₃ represent this new charge to place.the charge at the origin q₀ would experience the following force f₀₁ from q₁, with r = 6.0 m (note that 1 µc = 10⁻⁶ c) the force from q₂ the force from q₃ the net force on the origin charge, q₀, has to be zero for no electrostatic forcehaving an equation where k and q₀ can be divided out of the equation will allow us to solve for q₃ isolating: a charge of -1.0 × 10⁻⁴ c must be placed at x = 26 m.the sign of the charge will be the same as the -4.0 µc charge

Answer from: Quest

The answer is 4f======since electrostatic force is given by we let f be the electrostatic force when r = 1 m if we let denote the electrostatic force when the distance is decreased so that r = 0.5m, then we established earlier that f = kq₁q₂. therefore the force will now be 4f.

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Time (seconds)
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