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Daniel [21]
3 years ago
9

Match each branch of science with a related career.

Physics
2 answers:
Lapatulllka [165]3 years ago
8 0
A: geologist
b: physical science
c: space science
d: ecologist
olchik [2.2K]3 years ago
5 0

earth science is  geologist

physical science is chemist

life science is ecologist

space science is astronut

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In an experiment designed to measure the Earth's magnetic field using the Hall effect, a copper bar 0.550 cm thick is positioned
motikmotik

Answer:

B= 4.197*10^-5T

Explanation:

We know that the magnetic Field of the Earth is 50\mu T, so the equation for

Hall effect voltage und magnetic field are defined as,

\Delta V_H = \frac{IB}{nqt}

B=\frac{nqt\Delta V_h}{I}

So,

B=\frac{(8.48*10^{28})(1.6*10^{-19})(0.0055)(4.5*10^-{12})}{8}

B= 0.00004197

B= 4.197*10^{-5}T

7 0
3 years ago
A tennis ball moving at a speed of 4 m/s, collides with a bowling ball at rest. The tennis ball bounces back in the direction op
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Answer:

Both experienced the same magnitude impulse

Explanation:

This is because, the impulse force is internal to the system of both the tennis ball and the bowling ball. It is an action-reaction pair. So, the force exerted on the tennis ball by the bowling ball equals in magnitude to the force exerted by the tennis ball on the bowling ball although, they are in opposite directions. This, both experienced the same magnitude impulse.

3 0
3 years ago
Write the equation of a function h(t) that represents the amount of heat in joules required to heat the bar to a temperature of
bearhunter [10]
The initial temperature of the bar is 25. To get to the t temperature you need to add (t-25) degrees Celsius.

for 1 degree................... 7 Joules
      y given degree........  p Joules

p=7y

In our case y=(t-25) .

h(t) = 7(t-25) which is the final answer.

8 0
3 years ago
If i click on a mouse does that show energy transfer?
Radda [10]

Answer:

Yes

Explanation:

You are using energy to click the mouse, and the energy moves from your fingers to the mouse clicker.

8 0
3 years ago
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4.5 seconds you devoured 3240/720=4.5
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3 years ago
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