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pogonyaev
3 years ago
5

Object A experiences an attractive force of 50 N when it comes close to Object B. If Object A is positively charged, what can yo

u say about Object B?
1. You cannot tell from the information given.
2. Object B is negatively charged.
3. Object B is positively charged.
4. Object B is neutral.
Physics
2 answers:
dexar [7]3 years ago
8 0
B object b is negatively charged
denis23 [38]3 years ago
4 0
It is B since they are traveling at the same speed one is positive so the other had to be negative hope this helps;)))))
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At its widest point, the diameter of a bottlenose dolphin is 0.50 m. Bottlenose dolphins are particularly sleek, having a drag c
fiasKO [112]

Answer:

497.00977 N

3742514.97005

Explanation:

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v = Velocity of dolphin = 7.5 m/s

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F_d=\frac{1}{2}\rho CAv^2\\\Rightarrow F_d=\frac{1}{2}\times 1000 \times 0.09(\pi 0.25^2)7.5^2\\\Rightarrow F_d=497.00977\ N

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at 20°C

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Re=\frac{\rho vd}{\mu}\\\Rightarrow Re=\frac{1000\times 7.5\times 0.5}{1.002\times 10^{-3}}\\\Rightarrow Re=3742514.97005

The Reynolds number is 3742514.97005

8 0
3 years ago
How much work is done when a 214 newton force pushes a sleeping cow 37m across a field.
nata0808 [166]
Hello!

Answer: 
7918 J

Explanation:

We are assuming that the floor (field) is completely horizontal since there's no information about that in the statement. 

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W=214N . Cos (0).37m= 7918 N.m=7918 J

8 0
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Answer:

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Explanation:

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