4 years ago

Which scientist saw the atom as a positively charged sphere with negative particles ( electrons ) embedded within?

Physics

2 answers:

AveGali [126]4 years ago

8 0

Answer:

Plum Pudding Model

Explanation:

Zigmanuir [339]4 years ago

5 0

Ernest Rutherford is the answer you are looking for my friend.

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The only force acting on a 2.9 kg canister that is moving in an xy plane has a magnitude of 7.5 N. The canister initially has a

Elodia [21]

Answer:15.66 J

Explanation:

mass of block $\left ( m\right )=2.9 kg$

Force magnitude=7.5 N

Initial velocity = $3.9\hat{i} m/s$

Final velocity= $5.1 \hat{j} m/s$

Initial Kinetic Energy= $\frac{1}{2}mv^2$

= $\frac{1}{2}\times 2.9\times 3.9^2=22.05 J$

Final Kinetic Energy= $\frac{1}{2}mv^2$

= $\frac{1}{2}\times 2.9\times 5.1^2=37.714 J$

Work Done =Final -Initial Kinetic energy=37.714-22.056=15.66 J

7 0

4 years ago

A ball rolls at a speed of 6cm/s how far does the ball roll in 40 seconds ? ____cm

konstantin123 [22]

240 cm you do 6x 40 and should get 240cm

6 0

3 years ago

the declaration of Independence discusses the protection of natural rights. These rights include the right life liberty and the

nikdorinn [45]

Answer:

i can't understand ur question

4 0

3 years ago

An amusement park ride moves a rider at a constant speed of 14 meters per second in a horizontal circular path of radius 10. met

ASHA 777 [7]

Answer:

B) 2g

Explanation:

<u>Given the following data;</u>

Velocity, v = 14m/s

Radius, r = 10m

To find the centripetal acceleration;

$Acceleration, a = \frac {v^{2}}{r}$

Substituting into the equation, we have;

$Acceleration, a = \frac {14^{2}}{10}$

$Acceleration, a = \frac {196}{10}$

Acceleration, a = 19.6m/s²

In terms of acceleration due to gravity, g = 9.8m/s²

We would divide by g;

Acceleration, a = 19.6/9.8 = 2

Hence, centripetal acceleration = 2g

Therefore, the rider's centripetal acceleration in terms of g, the acceleration due to gravity is 2g.

4 0

3 years ago

Is my answer correct or no?

irinina [24]

No your answer is incorrect. Would you like the correct one?

8 0

4 years ago

Read 2 more answers