3 years ago

You find a measurement or 34 kg written in a laboratory notebook. What physical characteristic is this a measurement of?

Physics

1 answer:

Elis [28]3 years ago

7 0

Planck's constant. A physical constant adopted in 2011 by the CGPM.

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During summer break, Jamie's family went camping in the mountains. There were no roads to their camp, 8 miles away, and it took

liraira [26]

The Answer is B

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3 years ago

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How did scientists determine the age of the ocean floor?

mihalych1998 [28]

I believe it's magnetic stripping. I hope that helps

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3 years ago

Two vehicles approach an intersection: a truck moving eastbound at 16.0 m/s and an SUV moving southbound at 20.0 m/s. Suppose th

mario62 [17]

Answer:25.61 m/s

Explanation:

Given

truck is moving eastbound with a velocity of 16 m/s

Velocity of truck $v_t=16\hat{i}$

SUV is moving south with a velocity of 20 m/s

Velocity of SUV in vector form $v_s=-20\hat{j}$

Velocity of truck relative to the SUV

$v_{ts}=v_{t}-v_s$

$v_{ts}=16\hat{i}-(-20\hat{j})$

Magnitude of relative velocity is

$|v_{ts}|=\sqrt{16^2+20^2}$

$|v_{ts}|=25.61\ m/s$

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3 years ago

A baseball fan is 150.0 m from the home plate. how much time elapses between the instant the fan sees the batter hit the ball an

Artyom0805 [142]

Approximately 0.4373 seconds

Speed of sound at 20 degree C is roughly 343 meters/second

Speed of light = 3x10^8 or 300,000,000 meters/second

at 150.0 feet away you set it up as:

150.0/343 - 150/3x10^8

150.0/343 = 0.43731778

150/3x10^8 = 5x10^-7 or 0.0000005

Subtract 0.43731778 - 0.0000005

Answer is 0.43731728

Rounding would be approx. 0.4373

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3 years ago

Find the sum of the vectors: 40m/s2 Northeast, 10 m/s2 Northeast

podryga [215]

Answer:

Explanation:

Since both vectors are pointing on the same direction (Northeast), the sum of them will point in that same direction, and its magnitud will be the sum of the magnitudes of each vector (40m/s2+10m/s2). This problem is just a problem in one dimension. The sum of the vectors is then 50m/s2 Northeast.

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3 years ago