All categories

3 years ago

How do the results of the rutherford experiment suggest that the nucleus is positively charged?

1 answer:

8 0

Rutherford deduced that the atomic nucleus was positively charged because the alpha particles that he fired at the metal foils were positively charged, and like charges repel. Alpha particles consist of two protons and two neutrons, so they are positively charged. In Rutherford's experiments most of the alpha particles passed straight through the foil without being deflected. However, occasionally the alpha particles were deflected in their paths, and rarely the alpha particles were deflected backward at a 180 degree angle. Since like charges repel, Rutherford concluded that the cause of the deflections of the positively charged alpha particles had to be something within the atom that was also positively charged.

You might be interested in

Your friend is constructing a balancing display for an art project. She has one rock on the left ( ms=2.25 kgms=2.25 kg ) and th

Firdavs [7]

Answer:

Torque = 35.60 N.m (rounded off to 3 significant figures.

Explanation:

Given details:

The mass of the rock on the left, ms = 2.25 kg

The total mass of the rocks, mp = 10.1 kg

The distance from the fulcrum to the center of the pile of rocks, rp = 0.360 m

(a) The torque produced by the pile of rock, T = F*rp = m*g*rp

Torque = 9.8*0.360*10.1 = 35.6328

Torque = 35.60 N.m (rounded off to 3 significant figures).

5 0

3 years ago

How much power does it take to lift a 30.0 n box 10.0 m high in 5.00 s, if you must apply a 62n force to lift the box?

Illusion [34]

Power is defined as the rate at which the body is doing work:
$P=\frac{W}{t}$
Work is defined as displacement done by the force times that displacement:
$W=F\cdot h$
We know that we need 62N to move the box, so when we apply this force along the path of 10m we have done:
$W=62N\cdot10m=620J$
of work.
Now we just divide that by 5s to get how much power is required:
$P=\frac{620J}{5s}=124W$

5 0

3 years ago

A stone is projected from the ground with a velocity 14m/s one second later it clears a wall 2 m high. The angle of projection i

Eva8 [605]

Answer:

30 degrees

i can't put in my work on paper

6 0

3 years ago

Read 2 more answers

A flow of electric charge in a wire normally requires a _________.

just olya [345]

Flow of electric charge in a wire requires " ELECTRONS "

6 0

3 years ago

Formula One racers speed up much more quickly than normal passenger vehicles, and they also can stop in a much shorter distance.

Afina-wow [57]

Answer

given,

initial speed of the car = 90 m/s

final speed of the car = 0 m/s

distance taken to stop = 110 m

calculating the acceleration of the car = ?

using the equation of motion

v² - u² = 2 a s

0² - 90² = 2 x a x 100

$a = \dfrac{-90^2}{2\times 100}$

a = 40.5 m/s²

acceleration of the formula one car is equal to a = 40.5 m/s²

7 0

3 years ago