Answer:
2 m/s
Explanation:
Momentum is conserved:
mv = MV
where m is mass of the boxcar, v is its initial velocity, M is the mass of all six box cars, and V is the final velocity.
v = 12 m/s, and M = 6m, so:
m (12 m/s) = 6m V
12 m/s = 6V
V = 2 m/s
Answer: 8 * 10⁻⁸ cm² .
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Explanation:
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(2 * 10⁴ cm) * (4 * 10⁻¹² cm) =
2 *4 * 10⁴ * 10⁻¹² = 8 * 10⁽⁴⁺⁽⁻¹²⁾⁾ = 8 * 10⁻⁸ cm² .
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Note the follow property of exponents:
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xᵃ * xᵇ = x⁽ᵃ ⁺ ᵇ⁾ ; as such: " 10⁴ * 10⁻¹² = 10⁽⁴⁺⁽⁻¹²⁾⁾ = 10⁻⁸ " .
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The centripetal force acting on the rider is much greater if the roller coaster has a circular loop, rather than oval. This is because the change in direction is much sharper throughout the loop, causing the rider to experience a much more intense G-Force throughout the loop.
A teardrop loop features a more gradual change of direction: the cart spends time moving upward, briefly changes direction, and spends the rest of the time moving downward and flattening to a horizontal path. This means the riders experience the majority of the force on the way down as the car levels out, rather than an intense G-force throughout the ride.
The one with the higher frequency has more energy than the other.
Answer:
hii there
The correct answer is option ( C ) reduced air pressure
Explanation:
hope it helps
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