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gogolik [260]
3 years ago
14

Dalton theorized that the atom was simply a solid space. True or False

Physics
1 answer:
Ket [755]3 years ago
5 0
True. His model of the atom, the "Billiard Ball Model", is sometimes also dubbed the "Solid Sphere Model".

An image of Dalton's model is attached.

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1. What distance is required for a train to stop if its initial velocity is 23 m/s and its
Irina-Kira [14]

Answer:

x=?

dt=?

vi=23m/s

vf=0m/s (it stops)

d=0.25m/s^2

time =

vf=vi+d: 0=23m/s+(0.25m/s^2)t

t=92s

displacement=

vf^2=vi^2+2a(dx)

23^2=0^2+2(0.25m/s^2)x =-1058m

Explanation:

you can find time from vf = vi + a(Dt): 0 = 23 m/s + (0.25 m/s/s)t so t = 92 s and you can find the displacement from vf2 = vi2 + 2a(Dx) and find the answer in one step: 232 = 02 + 2(0.25 m/s/s)x so x = -1058 m

6 0
3 years ago
Nick’s swimming goggles are made of blue plastic. When he straps them on, he notices that the goggles change the color of the ob
Liono4ka [1.6K]

A white ring buoy appears<u> blue</u> because the blue plastic <u>absorbs</u> all colors of light except blue. Only the blue light <u>reflected from</u> the ring buoy passes through the blue plastic.

3 0
3 years ago
Read 2 more answers
A 70kg skier moving at 5 m/sec down a slope what is the skier’s momentum
olga2289 [7]

<u><em>Answer:</em></u>

Momentum of the skier is 350 Kg.m/sec

<u><em>Explanation:</em></u>

<u>Momentum of a body can be calculated using the following rule:</u>

P = m * v

<u>where:</u>

P is the momentum of the body

m is the mass of the body given as 70 Kg

v is the velocity of the body given as 5 m/sec

<u>Substitute with the givens in the above rule to get the momentum of the skier as follows:</u>

P = m * v

P = 70 * 5

P = 350 Kg.m/sec

Hope this helps :)

4 0
3 years ago
How u do it science
marusya05 [52]

homozygous dominant:(BB) got 2 of them

heterozgous dimonant: (Bb) got 2 of them

homozygous Recessive: (none)

5 0
3 years ago
PLEASE HELPPP IF YOU CAN!
Lunna [17]

Answer:

2 m/s²

Explanation:

F = ma

4 = 2(a)

a = 2

3 0
3 years ago
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