3 years ago

Which group number is aluminum in?

Physics

2 answers:

coldgirl [10]3 years ago

8 0

Answer:

Explanation:

Tatiana [17]3 years ago

6 0

Answer:

Explanation:

on the periodic table you can find it under the abbreviation AI

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Which list places the layers of the sun in the correct order from outermost to innermost?

Yuki888 [10]

Is D

is D because the inner layers are the Core, Radiative Zone and Convection Zone.

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3 years ago

A 15kg dog jumps out of a 40kg canoe. If the dogs velocity is 1.2m/s, what is the velocity of the canoe?

vivado [14]

Answer:

v = -0.45 m/s

Explanation:

Assuming the canoe was initially at rest with momentum L = 0

and that the dog's velocity is in the positive direction

conservation of momentum

0 = 15(1.2) + 40v

v = -0.45 m/s

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2 years ago

I really have no idea where to start with this. Could someone please exaplin the answer and how they got it? Theres a lot of the

LuckyWell [14K]

I believe the answer should be the last option. upon interaction, both objects should have the same charge after the electrons are transferred.

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3 years ago

Read 2 more answers

A(n) 30 kg boy rides a roller coaster. The acceleration of gravity is 9.8 m/s 2 . With what force does he press against the seat

forsale [732]

Answer:

Force, F = 187.42 N

Explanation:

It is given that,

Mass of boy, m = 30 kg

Acceleration due to gravity, $a=9.8\ m/s^2$

Radius of curvature of the roller coaster, r = 15 m

Speed of the car, v = 7.3 m/s

The force acting on the boy are force of gravity and the centripetal force. The net force acting on him is as follows :

$F=mg-\dfrac{mv^2}{r}$

$F=m(g-\dfrac{v^2}{r})$

$F=30\times (9.8-\dfrac{(7.3)^2}{15})$

F = 187.42 N

So, he press against the seat with a force is 187.42 N. Hence, this is the required solution.

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3 years ago

which of these is not a physical property of matter? select one: a. flammability b. color c. hardness d. density

netineya [11]

I believe the answer your looking for is A. Flammability. Because flammability is a chemical property, not a physical one. Hope this helps :)

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3 years ago