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2 years ago

6

a student stands on a metric scale, his weight is 490 N. then another student hands him a 5.00-kg mass to hold. the force shown

on the scale is now

1 answer:

Gwar [14]2 years ago

4 0

Answer:

539.04 N

Explanation:

5kg is approximately 49.04 newton's so add 49.04 to 490 and you get 539.04 N

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Read 2 more answers

Find the deBroglie wavelength of an electron with 4.0 eV.

pantera1 [17]

Explanation:

It is given that,

Voltage, $V=4 eV=4\times 1.6\times 10^{-19}\ V= 6.4\times 10^{-19}\ V$

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$\lambda=\dfrac{h}{\sqrt{2meV} }$

m and e are the mass and charge on electron. So,

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