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krok68 [10]
3 years ago
5

Mike is a runner. Mike runs 200m in 25s; what is his average velocity during the run? assume that units are in m/s. (asap, will

make brainliest)
Physics
1 answer:
maw [93]3 years ago
5 0
Velocity is displacement/time
(Displacement is the overall change in distance)

So you’ll want to divide 200 by 25, which should give you:

8 m/s

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For a particular reaction, the change in enthalpy is 51kJmole and the activation energy is 109kJmole. Which of the following cou
Ronch [10]

Answer

given,

change in enthalpy = 51 kJ/mole

change in activation energy = 109 kJ/mole

when a reaction is catalysed change in enthalpy between the product and the reactant does not change it remain constant.

where as activation energy of the product and the reactant decreases.

example:

ΔH = 51 kJ/mole

E_a= 83 kJ/mole

here activation energy decrease whereas change in enthalpy remains same.

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Elis [28]
The answer is B.
She can measure the mass of the water, marble and the graduated cylinder with the balance.
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4 0
3 years ago
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Considera que en tu casa tienes un televisor de 110 W, si pasa encendido 4 horas diarias, Cuál será la energía consumida durante
rjkz [21]

Answer:

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look for the energy consumed in one day and multiply by the days of the month in the month

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the cost of this energy is

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4 0
3 years ago
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TiliK225 [7]

Answer:

.5 m

Explanation:

It is correct lol.

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3 years ago
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