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lana [24]
2 years ago
6

Rutherford's gold foil experiment revealed the atom has what subatomic particle

Physics
1 answer:
musickatia [10]2 years ago
3 0
His gold foil experiment revealed the atom had a dense positive subatomic particle in the middle . He called it the NUCLEUS.

Hope this helps!
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Consider a car moving at a constant velocity. Recall that, for any object to move at a constant velocity, the net force acting o
Eddi Din [679]

For any object to move at a constant velocity, the net force acting on the object must be ZERO.

6 0
2 years ago
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an apple in a tree has a gravitational potential energy of 175J and a mass of 0.36g . how high from the ground is the apple
Neko [114]
The equation for potential energy is denoted as; 

Pe = mgh,

where m = the mass, g = acceleration due to gravity, and h = vertical height of the apple. We are given the units for everything but height, which is also what we are solving for. We can then algebraically rearrange our initial equation to solve for h;

h = (Pe)/(mg)

Plug in your given units, and solve!





Post-check:

h = Pe/mg

h = 175J/(0.36g)(-9.81m/s^2)

h = appr. 49.5 meters

Note: Potential energy is a vector quantity; the displacement of the apple will be a negative number, but the distance itself, a scalar quantity, will be the absolute value of that.
5 0
2 years ago
John heats 1 kg of soup from 25 °C to 70 °C for 15 minutes by a heater. How long does the same heater take to heat 1.5 kg of the
Mumz [18]

Answer:

30 minutes

Explanation:

Energy per time is constant, so:

E₁ / t₁ = E₂ / t₂

m₁C₁ΔT₁ / t₁ = m₂C₂ΔT₂ / t₂

(1 kg) C (70°C − 25°C) / 15 min = (1.5 kg) C (80°C − 20°C) / t

(1 kg) (45°C) / 15 min = (1.5 kg) (60°C) / t

3/min = 90 / t

t = 30 min

6 0
3 years ago
ANSWER ASAP PLEASE!!
eimsori [14]
Sprry o cant see the words clearly
7 0
3 years ago
Where does the kinetic energy come fromwhen you roll down a hill?
Lapatulllka [165]
From the change of GPE into KE. Conservation of energy tells us this.
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3 years ago
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