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maks197457 [2]
3 years ago
15

What property do protons can electrons have that neutrons do not ?

Physics
1 answer:
Vesna [10]3 years ago
4 0

Answer:

Protons and electrons are charged particles. Neutrons have no charge.

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What vertical distance Δy does a free-falling particle travel from the moment it starts to the moment it reaches a speed of 7.9
mr_godi [17]

Answer:

3.2 m

Explanation:

The equation to use to solve this problem is:

v_f^2 = v_i^2 + 2 a \Delta y

where

v_f is the final velocity

v_i is the initial velocity

a is the acceleration

\Delta y is the distance covered

For the particle in free-fall in this problem, we have

v_i = 0 (it starts from rest)

v_f = 7.9 m/s

g=9.8 m/s^2 (acceleration due to gravity)

By re-arranging the equation, we can find the distance travelled:

\Delta y = \frac{v_f^2 -v_i^2}{2a}=\frac{(7.9 m/s)^2-0^2}{2(9.8 m/s^2)}=3.2 m

5 0
3 years ago
What is Aristotle famous for?
Mila [183]

Answer:

History

Explanation:

Im. Sorry. Im. Not. Much. Help

8 0
3 years ago
the chef was careless and put the aluminum cookie sheet directly on the hot stove, which melted 0.05 kg of the aluminum. how muc
sergejj [24]

Heat required to melt 0.05 kg of aluminum is 28.7 kJ.

<h3>What is the energy required to melt 0.05 kg of aluminum?</h3>

The heat energy required to melt 0.05 kg of aluminum is obtained from the heat capacity of aluminum and the melting point of aluminum.

The formula to be used is given below:

  • Heat required = mass * heat capacity * temperature change

Assuming the aluminum sheet was at room temperature initially.;

Room temperature = 25 °C

Melting point of aluminum = 660.3 °C

Temperature difference = (660.3 - 25) = 635.3 903

Heat capacity of aluminum = 903 J/kg/903

Heat required = 0.05 * 903 * 635.3

Heat required = 28.7 kJ

In conclusion, the heat required is obtained from the heat change aluminum and the mass of the aluminum melted.

Learn more about heat capacity at: brainly.com/question/21406849

#SPJ1

3 0
2 years ago
A skateboarder starts from rest and maintains a constant acceleration of 0.50 m/s² for 8.4 s. What is the rider's displacement d
gregori [183]

Answer:

4.2m/s

Explanation:

0.50x8.4=4.2m/s

3 0
2 years ago
Why are ocean currents important?
Lelu [443]
For the considerably longer periods– decades to millennia – which are relevant for climate change, the slightly larger heat capacity of the deep ocean<span> is </span>important. Ocean currents<span> and mixing by winds and waves can transport and redistribute heat to deeper </span>ocean<span> layers.</span>
4 0
3 years ago
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