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Vladimir79 [104]
3 years ago
9

Predict how heat would flow if beaker A is moved so that it's touching beaker B

Physics
1 answer:
ra1l [238]3 years ago
6 0
Well,

It really depends on thier temperature. But the answer is C) Heat would flow from both beakers.
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The study of blank involves the study of the natural world
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The study of science involves the study of the natural world.
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3 years ago
What is the magnitude of electrical force of attraction between an copper nucleus (29 protons) and its innermost electron if the
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The charge of the copper nucleus is 29 times the charge of one proton:
Q=29 q= 29 \cdot 1.6 \cdot 10^{-19}C=4.64 \cdot 10^{-18}C
the charge of the electron is
e=-1.6 \cdot 10^{-19}C
and their separation is
r=1.0 \cdot 10^{-12} m

The magnitude of the electrostatic force between them is given by:
F=k_e  \frac{Qe}{r^2}
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F=(8.99 \cdot 10^9 Nm^2C^{-2}) \frac{(4.64 \cdot 10^{-18}C)(1.6 \cdot 10^{-19}C)}{(1.0 \cdot 10^{-12} m)^2}=6.68 \cdot 10^{-3} N
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PM me for full answer, please. If it's not too late.
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3 years ago
The engine of a 1520-kg automobile has a power rating of 75 kW. Determine the time required to accelerate this car from rest to
LUCKY_DIMON [66]

Answer:

t=15.68 s

Explanation:

Given that

m = 1520 kg

P =75 KW

We know that

Power  ,P = F .v

F=force

v=velocity

v= 100 km/h

v=\dfrac{1000}{3600}\times 100\ m/s

v=27.77 m/s

75 x 1000  = F x 27.77

F= \dfrac{75000}{27.77}\ N

F= 2700.75 N

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2700.75 = 1520 x a

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time t given as

v= u + a t

27.77 = 0 + 1.77 x t

t=15.68 s

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Makenna surveyed 48 of her female classmates to determine the number of stores each one visited before purchasing a dress for th
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48/4 = 12

the answer is 12


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3 years ago
Read 2 more answers
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