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3 years ago

Explain why science is a continuous progression of study

Physics

2 answers:

Alenkinab [10]3 years ago

8 0

new discoveries lead to new research.

Lise Meitner split the nucleus => nuclear energy research

devlian [24]3 years ago

3 0

Answer:

Explanation:

Science is a field which has enormous area to explore and is a continuous progression of study.

Everyday we come across with different problem and we need science to explore it more further.

From the discovery of first flying machine to new modern air bus, science has never stopped to discover and to make life more easier.

The passion and greed for knowledge is a never ending thing which will always lead us a way and room for new discoveries and to learn more from them.

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Answer:

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3 years ago

An 880n box is pushed across a level floor for a distance of 5.0m with a force of 440n. how much work was done on the box

Simora [160]

W=Fd, F=440N, d=5m. 5x440=2,200J of work

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3 years ago

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Compare and contrast electric motors and generators.

Marrrta [24]

Electric motors require electricity to move the motor parts and do work (like an electric fan).

Elecgric generators actually burn diesel fuel to spin a motor around and around and around to GENERATE, or MAKE, electricity that you can then use to power your fans and lights in your house.

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3 years ago

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A capacitor is charged until it holds 5.0 j of energy. it is then connected across a 10-kω resistor. in 13.6 ms , the resistor d

prohojiy [21]

Answer:

The capacite is C=5.32 uF using the equations of voltage and energy in capacitance

Explanation:

The energy holds is 5 J and the resistor dissipates 2J so the energy total is 3J

Using:

$V_{t}= V_{o}e^{\frac{-t}{R*C} }$

Voltage in this case is the energy dissipated so

$E_{t}= E_{o}e^{\frac{-t}{R*C} }$

$\frac{\sqrt{E_t} }{\sqrt{E_o} } = e^{\frac{-t}{R*C} }$

$\frac{\sqrt{3 J} }{\sqrt{5J} } = e^{\frac{-13.6ms}{10kw*C} }$

Using the equation to find capacitance

$ln 0.775= e^{\frac{-13.6 x10^{3} }{10x10^{3}*C }} \\ln(0.775)= ln * e^{\frac{-13.6 x10^{3s} }{10x10^{3}*C }} \\\\ln(0.775)= {\frac{-13.6 x10^{3} }{10x10^{3}*C }} \\C= \frac{-13.6 x10^{-3} }{10x10x^{3}*ln(0.775) }$

$C= 5.32x10^{-6}$ F

C= 5.32 uF because u is the symbol for micro that is equal to $10^{-6}$

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3 years ago

A motorist travels a distance of 406 km during a 7 hr period. What was the average speed in (a) km/hr and (b) m/sec?

Sholpan [36]

The motorist travels (a) 58 km/h and (b) ~16.1 m/sec

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4 years ago

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