All categories

3 years ago

What did Rutherford’s model of the atom include that Thomson’s model did not have?

1 answer:

3 0

Rutherford overturned Thomson's model in 1911 with his well-known gold foil experiment in which he demonstrated that the atom has a tiny and heavy nucleus. Rutherford designed an experiment to use the alpha particles emitted by a radioactive element as probes to the unseen world of atomic structure.

You might be interested in

Why do you think the sickle cell allele is still common in tropical regions?

Ugo [173]

Sickle-cell disease is common in tropical and sub-tropical regions because being a carrier, carrying a single sickle-cell mutation (sickle cell trait), affords some resistance to malaria.

8 0

3 years ago

Just solve this. stuff...

Nina [5.8K]

Answer:

Here's your ans pic

Explanation:

Hope it helps you

So the ans is <em>D</em><em> </em>

3 0

3 years ago

Read 2 more answers

What does it mean if the slope is zero?

kiruha [24]

The object is not moving.

My explanation is that say if you sit a ball on the table and it is a smooth surface with no bumps or anything. The ball will sit still since it can’t roll unless you hit it.

Hope this helps!

5 0

3 years ago

Ali is training for a marathon he knows he can run 12 miles in 114 minutes if he keeps this pace how long will it take him to ru

tigry1 [53]

Answer:

249.5 minutes

Explanation:

Ali's speed is given by:

$v=\frac{d}{t}$

where

d is the distance covered

t is the time taken

We know that he can run d = 12 mi in t = 114 min, so he can keep a speed of

$v=\frac{12 mi}{114 min}=0.105 mi/min$

The length of a maraton is

L = 26.2 miles

So we can find the time it takes for Ali to complete the marathon as follows

$t = \frac{L}{v}=\frac{26.2 mi}{0.105 mi/min}=249.5 min$

5 0

3 years ago

A suitcase has mass of 4.1 kg and sits on a counter 1.8 m high in the airport. How much gravitational potential energy does it h

velikii [3]

Answer:

72.324 J

Explanation:

Formula for gravitational potential energy is given by;

GPE = mgh.

Where;

m = mass

g = acceleration due to gravity

h = height

We are given;

m = 4.1 kg

h = 1.8 m

Thus;

GPE = 4.1 × 9.8 × 1.8 = 72.324 J

5 0

3 years ago