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padilas [110]
3 years ago
10

Calculate the potential energy of a 3.0 kg bag that is lifted to 2.0 m above ground.

Physics
1 answer:
4vir4ik [10]3 years ago
5 0

Answer:

<h2>60 J</h2>

Explanation:

The potential energy of a body can be found by using the formula

PE = mgh

where

m is the mass

h is the height

g is the acceleration due to gravity which is 10 m/s²

From the question we have

PE = 3 × 10 × 2

We have the final answer as

<h3>60 J</h3>

Hope this helps you

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One mole of an unknown sample contains 120 g of carbon and 30.3 g of
barxatty [35]

atomic mass of carbon is C = 12 g/mol

atomic mass of hydrogen is H = 1 g/mol

now number of carbon atoms

N_c = \frac{120}{12} = 10

Similarly the number of hydrogen atoms are

N_H = \frac{30.3}{1} = 30

so Carbon atom and hydrogen atom must be in ratio of 10:30

so the ratio is 1:3

now the empirical formula is always in simplest form

CH_3

5 0
3 years ago
A ball appears blue outside. When you walk inside, it now looks green. Use reflection to explain why this happened.
Soloha48 [4]

Answer:

the object reflects blue light and absorbs rest of the spectrum.

Explanation:

3 0
3 years ago
Calculate the density of water in kg/m3. Express your answer in kilograms per cubic meter using three significant figures.
Svet_ta [14]

Answer:

This question appear incomplete

Explanation:

This question appear incomplete. However, the density of water is generally known to be 997 kg/m³. The formula used to determine density is mass ÷ volume. In the case of the density of water, the mass is measured in kilograms (kg) while the volume is measured in cubic meter (m³).

8 0
3 years ago
Suppose an electron is trapped within a small region and the uncertainty in its position is 24. 0 x 10-15 m. what is the minimum
sergeinik [125]

The minimum uncertainty in the electron's momentum is

Δp = 2.2822 \times 10 {}^{ - 20} kg/ms

Given:

Uncertainty in position (ΔX)

= 24 \times 10 {}^{ - 15}m

planck's constant (h)

= 6.26 \times 10 {}^{ - 34} js

To find:

uncertainty in momentum (Δp)

Δx.Δph/4π

24 \times 10 {}^{ - 15} .Δp =  \frac{6.26 \times 10 {}^{ - 34} }{4 \times  \frac{22}{7} }

24 \times 10 {}^{ - 15}. Δp =  \frac{6.26 \times 10 {}^{ - 34} \times 7 }{8}

Δp =  \frac{43.82 \times 10 {}^{ - 34} }{8 \times 24 \times 10 {}^{ - 15} }

Δp =  \frac{43.82 \times 10 {}^{ - 34}  \times 10 {}^{ 15} }{192}

Δp =  \frac{4382 \times 10 {}^{ - 21} }{192}

Δp =22.822 \times 10 {}^{ - 21}

Δp = 2.2822  \times 10 {}^{ - 20} kg/ms

learn more about electron's momentum from here: brainly.com/question/28203580

#SPJ4

3 0
2 years ago
2. Our solar system is made up of the Sun, 8 planets, and other bodies such as
Pie
It’s 25 because I already took the testing
8 0
3 years ago
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