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Mamont248 [21]
3 years ago
15

A Savior In Physics Please Help In This Question!!!!!!!!!!!!!!!!

Physics
1 answer:
Ipatiy [6.2K]3 years ago
5 0
Hello there!

To find the speed when you have the kinetic energy and the mass, you just start with the kinetic energy formula then solve for speed.

Kinetic energy =  \frac{1}{2} mv^2

V = \sqrt{ \frac{2*K.E{} }m

V =  \sqrt{ \frac{2*1.09*10 ^{-3} }{9.34*10 ^{-2} } }

V = \frac{0.00218}{0.0934}

V = 0.02334

Thus, the speed is 0.02 m/s

I hope this helps!


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A 55.4 g sample of water at 99.61 °C is placed in a constant pressure calorimeter. Then, 23.4 g of zinc metal at 21.6 °C is adde
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Heat loss by water = Heat gain by zinc metal

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C2 is specific heat capacity of zinc metal

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T2 is the initial temperature of zinc metal = 21.6 °C

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3 0
3 years ago
When a 3.0 kg mass is hung from a vertical massless spring, the spring is stretched 40 cm. What is the spring constant of the sp
Dmitry_Shevchenko [17]

Answer:

0.74 N/cm

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The following data were obtained from the question:

Mass (m) = 3 Kg

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Next, we shall determine the force exerted on the spring.

This can be obtained as follow:

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Finally, we shall determine the spring constant of the spring. This can be obtained as follow:

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K = 0.74 N/cm

Therefore, the spring constant of the spring is 0.74 N/cm

5 0
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