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2 years ago

Make the following conversion.

Physics

2 answers:

Vesna [10]2 years ago

8 0

Answer:

The answer would be D 56,320

Explanation:

blsea [12.9K]2 years ago

7 0

Answer: 56320

Explanation:

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Name at least two other viruses that are at all time lows due to vaccines.

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Flu and chicken pox

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INQUIRY IS A TYPE OF SCIENCE PROMPTED BY A QUESTION TRUE OR FALSE

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The answer is clearly True

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3 years ago

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A sailboat is moving across the water at 3.0 m/s. A gust of wind fills its sails and it accelerates at a constant 2.0 m/s2. At t

Flauer [41]

Answer:

v = 9 m/s

Explanation:

It is given that,

Initial speed of the sailboat, u = 3 m/s

Acceleration of the sailboat, $a=2\ m/s^2$

Initial speed of the motorboat, u = 0

Acceleration of the motorboat, $a=4\ m/s^2$

Time elapsed, t = 3 s

To find,

The velocity of the sailboat

Solve,

Let v is the velocity of the sailboat after 3 seconds. By using the equation of kinematics, it can be calculated.

$v=u+at$

$v=3\ m/s+2\ m/s^2\times 3\ s$

v = 9 m/s

Therefore, the velocity of the sailboat is 9 m/s.

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3 years ago

Blow up a balloon and rub it against your shirt a number of times. In doing so you give the balloon a net electric charge. Now t

tamaranim1 [39]

Balloons are blown up, and then rubbed against your shirt many times. The balloon then touches the ceiling. When released, the balloon remains stuck to the ceiling. The balloon is charged by contact. The ceiling has a neutral charge. The charged balloon induces a slight surface charge on the ceiling opposite to the charge on the balloon. Balloon and ceiling electric charges are opposite in sign, so they will attract each other. Since both the balloon and the ceiling are insulators, charge can not flow from one to the other. The charge on the balloon is fixed on the balloon and the charge on the ceiling remains fixed to the ceiling. It just so happens that the electrostatic force the ceiling exerts on the balloon is sufficient to hold the balloon in place (i.e. overcomes gravity, etc.).

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3 years ago

A sound wave propagates through a region filled with an ideal gas at constant temperature T. It approaches an acoustically perme

nataly862011 [7]

Answer:

The answer is e.2

Explanation:

We should make use of Snell's refractive law. The arriving wave has a certain velocity at T in a medium, then instantly it reaches a medium (same composition) at T' where velocity would either decrease or increase.

When the incidence angle is 30 °, and we want to make the refraction angle 90 ° such that no sound passes through the barrier (this would be named total internal refraction), so we want the second medium to be "faster" than in the first.

The steps are in the image attached:

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2 years ago