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3 years ago

What did Galileo discover when he dropped two cannon balls of different weights from the Leaning Tower of Pisa?

Physics

2 answers:

Burka [1]3 years ago

8 0

Answer:

B. The time for both of the balls to reach the ground was the same.

Explanation:

Galileo showed that objects fall at the same time regardless of their weight, it is a matter of their resistance to air that arrives or not before. In a system where there is no air and therefore no friction, the objects fall at the same time and that has been demonstrated many times.

Maru [420]3 years ago

6 0

The answer is "B".. Galileo discovered that dropping two items of the same mass, they can have different weights but no matter what the force that is acting upon them is the same amount, so this means that both objects will hit the ground at the same time. Galileo tested this theory and proved it right.

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PLS ANSWER FAST WILL GIVE BRAINLEST!!

egoroff_w [7]

Answer:

from

force =mass x acceleration

mass = force/acceleration

m = f/a

m = 7.5/15

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3 years ago

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A particle has a charge of -4.25 nC.

SpyIntel [72]

Answer:

-611.32 N/C

0.43723 m

Explanation:

k = Coulomb constant = $8.99\times 10^{9}\ Nm^2/C^2$

q = Charge = -4.25 nC

r = Distance from particle = 0.25 m

Electric field is given by

$E=\dfrac{kq}{r^2}\\\Rightarrow E=\dfrac{8.99\times 10^9\times -4.25\times 10^{-9}}{0.25^2}\\\Rightarrow E=-611.32\ N/C$

The magnitude is 611.32 N/C

The electric field will point straight down as the sign is negative towards the particle.

$E=\dfrac{kq}{r^2}\\\Rightarrow r=\sqrt{\dfrac{kq}{E}}\\\Rightarrow r=\sqrt{\dfrac{8.99\times 10^9\times 4.25\times 10^{-9}}{13}}\\\Rightarrow r=1.71436\ m$

The distance from the electric field is 1.71436 m

4 0

3 years ago

Read 2 more answers

For the following statements, choose the word or words inside the parentheses that serve to make a correct statement. Each state

AnnyKZ [126]

Answer:

a) Temperatura, b) Temperature, c) Constant , d) None of these , e) Gibbs enthalpy and free energy (G)

Explanation:

a) the expression for ideal gases is PV = nRT

Temperature

b) The internal energy is E = K T

Temperature

c) S = ΔQ/T

In an isolated system ΔQ is zero, entropy is constant

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d) all parameters change when changing status

None of these

e) Gibbs enthalpy and free energy

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3 years ago

Have discovered fossils of similar an

Lilit [14]

Answer:

Explanation:

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3 years ago

What is the measurement 6 centimeters equal to;

Lemur [1.5K]

Answer:

6 centimeter = 60 millimeter

Explanation:

1 meter = 100 centimeter

1 centimeter = 0.01 meter

Thus, 6 × 1 centimeter = 6 × 0.01 meter

6 centimeter = 0.06 meter

Hence, first option is wrong.

1 centimeter = 10 millimeter

6 × 1 centimeter = 6 × 10 millimeter

6 centimeter = 60 millimeter

Thus, third option is correct.

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3 years ago