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Trava [24]
3 years ago
8

A student walks 100 m East and 100 m North. What is their distance traveled?

Physics
1 answer:
vichka [17]3 years ago
5 0

--  The student's distance traveled is 200 meters.

--  The student's displacement is 141 meters Northeast.

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Lostsunrise [7]
“Gaining or losing electrons has no impact on the number of protons and neutrons an atom has, which is another way of saying that the mass number is not affected by changes in the net charge.”
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3 years ago
PLEASE HELP BRAINLIEST + POINTS'
Semenov [28]

For this case we have that by definition, physical power refers to the amount of work done for a unit of time.

So:

P = \frac {W} {t}

Where:

W: It's the work

t: It's time

The power units are in \frac {Joules} {s} = Watts

So, according to the problem data we have:

P = 100W\\t = 120s

Clearing the work of the formula:

W = P * t\\W = 100 * 120 = 1200

Thus, the work is 1200 joules.

Answer:

Option C

8 0
3 years ago
What minimum banking angle is required for an olympic bobsled to negotiate a 100-m radius turn at 35 m/s without skidding? (igno
Leviafan [203]
<span>51 degrees. Since we're ignoring friction, we have to have a banking angle such that the normal force is exactly perpendicular to the banked curve. Since this problem says "ignore friction", if the bank angle is too shallow, the bobsled would slide outwards if the banking angle is too shallow and would fall inwards if the banking angle is too steep. So we have to exactly match the calculated centripetal acceleration. The equation for centripetal acceleration is: F = mv^2/r I'll assume a mass of 1 kg to keep the math simple. Any mass could be used and the direction vectors would be the same except their magnitude would differ. So F = 1 kg * (35 m/s)^2/100 m F = 1225 kg*m^2/s^2 / 100 m F = 12.25 kg*m/s^2 The local gravitational acceleration is 9.8 m/s^2, so the sum of those vectors will have a length of sqrt(12.25^2 + 9.8^2) and an angle of atan(9.8/12.25) below the horizon. The magnitude of the vector doesn't matter, merely the angle which is: atan(9.8/12.25) = atan(0.8) = 38.65980825 degrees. The banking angle needs to be perpendicular to the force vectors. So 90 - 38.65980825 = 51.34019175 degrees. Rounding to 2 significant figures gives a bank angle of 51 degrees.</span>
5 0
2 years ago
Planets A and B have the same mass, but planet A is half the size of planet B.
pychu [463]

Answer:

c. You would weigh less on planet A because the distance between

you and the planet's center of gravity would be smaller.

Explanation:

The statement that best describes your weight on each planet is that you would weigh less on planet A because the distance between you and the planet's center of gravity would be smaller.

  • This is based on Newton's law of universal gravitation which states that "the force of gravity between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distances between them".

Since weight is dependent on the force of gravity and mass, the planet with more gravitational pull will have masses on them weighing more.

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7 0
3 years ago
Read 2 more answers
ASAP
scoundrel [369]

Answer:

A

Explanation:

Hooke's law! F(spring)=-kx

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5 0
3 years ago
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