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3 years ago

CAN YOU HELP PLZZ & THX

Physics

1 answer:

maxonik [38]3 years ago

6 0

Answer:

6.7x10 -7 C

Explanation:

The -7 is like a exponent on top, I think.

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Does a ship float higher in the water of an inland lake or in the ocean? Why?

Ahat [919]

The weight of a ship is frequently called its "displacement" since that's the weight of the water that it uproots. It'll drift when it uproots a volume of water whose weight is break even with the weight of the ship -- this can be the buoyant drive given by the water. New water in an inland lake features a littler density than that of ocean water. Hence, a larger volume of new water is vital to supply the same weight or buoyant force. This implies the ship will ride lower in an inland lake and will ride higher within the sea.

<h3>what is buoyant force?</h3>

When an object is set in a liquid, the liquid applies an upward force we call the buoyant force. The buoyant force comes from the weight applied to the question by the liquid. Since the weight increments as the profundity increments, the weight on the foot of an object is continuously bigger than the force on the best - consequently the net upward force. The buoyant force is present whether the question coasts or sinks.

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2 years ago

What is a zippper awsedrftvgbhnjmk,l

lions [1.4K]

Answer:

a jacket closing mechanism a most useful tool to preserve and protect.

Explanation:

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3 years ago

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The man is walking with speed v1 = 1.35 m/s to the right when he trips over a small floor discontinuity. Estimate his angular ve

soldier1979 [14.2K]

Answer:

The angular velocity, $\omega = 1.05 rad/s$ clockwise

Explanation:

The mass of the man, m = 72 kg

The center of mass of the man will be at the middle of his body, particularly around his abdomen.

Height of the center of mass, h = 0.71 m

The speed of the man, v₁ = 1.35 m/s

Moment of inertia about the ankle joint, I = 66 kg/m²

Based on the principle of conservation of angular momentum (about the ankle joint):

Angular momentum before impact = Angular momentum after impact

Angular momentum before impact = -mv₁h

Angular momentum before impact = -(72 * 1.35 * 0.71)

Angular momentum before impact = -69.012 kg m²/s...............(1)

Angular momentum after impact = $I \omega$

Angular momentum after impact = $66 * \omega$ .................(2)

$66 \omega = -69.012\\\omega = -69.012/66\\\omega = -1.05 rad/s$

The angular velocity, $\omega = 1.05 rad/s$ clockwise

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3 years ago

60 kilometers in 4 hours, what is the average speed?

allsm [11]

Average speed = (distance covered) / (time to cover the distance)

Average speed = (60 kilometers) / (4 hours)

Average speed = (60/4) kilometer/hour

Average speed = 15 km/hr

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3 years ago

Seismic waves do not travel along the Earth’s surface. Please select the best answer from the choices provided

mario62 [17]

The correct answer to the question that is stated above is obviously letter b, false.

Seismic waves travel along the Earth’s surface.They are waves of energy that travel through the Earth's layers. These waves are a result of an earthquake , volcanic eruptions, magma movement and large landslides.

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3 years ago

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