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spayn [35]
4 years ago
15

Dalton proposed the first atomic model. Which of these statements accurately reflected his thinking at that time?. . . . A.. Ato

ms are all alike.. . . B.. Atoms are solid balls.. . . C.. Smaller particles are found inside atoms.. . . D.. Atoms can be divided into smaller parts.
Physics
2 answers:
IrinaK [193]4 years ago
5 0
A. Atoms are all alike

Reason: 

<span>Atoms of a given element are identical in size, mass, and other properties; atoms of different elements differ in size, mass, and other properties.</span>
QveST [7]4 years ago
4 0
A.. Atoms are alike...
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Problem 1. Cylinders and a pendulum A uniform solid cylinder of radius r and mass m can roll inside a hollow cylinder of radius
Nataliya [291]

Answer:

The two answers are in the explanation

Explanation:

Please find the attached files for the solution

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4 years ago
A race car's velocity increases from +28 m/s to +36 m/s over a 2.0-s time interval. What is the car's
BigorU [14]

Answer:

4 m/s^{2}

Explanation:

Acceleration, a=\frac {v-u}{t}

Where v and u are the final and initial velocities of the race car respectively, t is the time taken for the race car to attain velocity of 36 m/s.

Substituting 36 m/s for v, 28 m/s for u and 2 s for t then

a=\frac {36 m/s-28 m/s}{2}=4 m/s^{2}

3 0
3 years ago
Consider a plywood square mounted on an axis that is perpendicular to the plane of the square and passes through the center of t
belka [17]

Answer:

T= 8.061N*m

Explanation:

The first thing to do is assume that the force is tangential to the square, so the torque is calculated as:

T = Fr

where F is the force, r the radius.

if we need the maximum torque we need the maximum radius, it means tha the radius is going to be the edge of the square.

Then, r is the distance between the edge and the center, so using the pythagorean theorem, r i equal to:

r = \sqrt{(0.38m)^2+(0.38m)^2}

r = 0.5374m

Finally, replacing the value of r and F, we get that the maximun torque is:

T = 15N(0.5374m)

T= 8.061N*m

4 0
4 years ago
Defination of radiation​
saw5 [17]

Answer:

the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.

Explanation:

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