3 years ago

An object is positively charged if it has more what

Physics

1 answer:

kkurt [141]3 years ago

8 0

Answer:

An Object is positively charged if it has more Positive Electrons in that object

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5. What structure did Friedrich Kekule discover that allowed carbon atoms can bond

musickatia [10]

Benzene was a ring of six carbon atoms! This was the structure that made him well known around the world

4 0

2 years ago

How much heat is released when a 10.0-g sample of iron cools from 75.0°c to 25.5 °c? the specific heat capacity of iron is 0.449

GalinKa [24]

M = 10.0 g, the mass of the iron sample
ΔT = 75 - 25.2 = 49.5°C, the decrease in temperature
c = 0.449 J/(g-°C), the specific heat of iron

The heat released is
Q = m*c*ΔT
= (10.0 g)*(0.449 J/(g-°C))*(49.5 C)
= 222.255 J

Answer: 222.3 J (nearest tenth)

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3 years ago

A uniform rod of length L is pivoted at L/4 from one end. It is pulled to one side through a very small angle and allowed to osc

ludmilkaskok [199]

Answer:

T= 4.24sec

Explanation:

We are going to use the formula below to calculate.

$T=2\pi \sqrt{\frac{L}{g} }$