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a_sh-v [17]
3 years ago
7

A student releases a marble from the top of a ramp. The marble increases speed while on the ramp then continues across the floor

. The marble travels a total of 120cm in 3.40s.
What is the final velocity (in cm/s)
Physics
1 answer:
Sergeu [11.5K]3 years ago
7 0

Answer:

35.2941176 cm/s

Explanation:

round it if you need too

Distance divided by time.

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alexgriva [62]

Answer:

C. An ion with a +2 charge

Explanation:

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3 years ago
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A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon
nirvana33 [79]
It gets larger because
well let me give you an example
so today in class we looked at a lava lamp with wax inside and there was a lightbulb at the bottom.
we watched as the wax floated up because the molecules inside the wax spreads out and makes the wax less dense.
the wax floats up because (which is related to the balloon getting bigger) the wax is getting less dense and the particles get bigger which ALSO makes the wax less dense.
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4 years ago
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Lady bird [3.3K]

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Explanation:

The boat with water barrel overboard floats in swimming pool when weight of the water displaced by the boat is equal to the buoyant force acting on the boat.

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A boat loaded with a barrel of water floats in a swimming pool. When the water in the barrel is poured overboard, the swimming pool level will <u>remain unchanged. </u>

5 0
3 years ago
How many joules of electrical energy is transferred per second by 6V 0.5 A lamp?
Degger [83]

When you ask for "joules per second", you're asking for "watts".
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Electrical power = (voltage) x (current) =

                              (6 volts) x (0.5 ampere) =

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3 years ago
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