2 years ago

Which of the following is an example of kinetic energy?

2 answers:

8 0

Kinetic energy:

SCREAM! -- thundering down a roller coaster path
CRACK -- the baseball flying through the air
Whoosh... -- a crippled plane gliding its way to the airport

Alenkasestr [34]2 years ago

5 0

Something moving. Change in temperature.

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Please help me this is an easy science question where you put the correct lettered answer in the small chart. Please help you ge

Elanso [62]

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3 years ago

Identify the anode and cathode please

Nuetrik [128]

Answer:

anode is negative. cathode is positive.

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2 years ago

Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 fm (femtometers) and the radius of t

Slav-nsk [51]

Explanation:

Let us assume that volumes is equal to spheres volume of nucleus.

fm = femto meter = $10^{-15}$

pm = pico meter = $10^{-12}$

Hence, calculate the volume as follows.

V = $\frac{4}{3} \times \pi \times r^{3}$

= $\frac{4}{3} \times 3.14 \times (2.7)^{3}$

= 82.4481 $fm^{3}$ (cubic femtometers)

or, = 82 $fm^{3}$

Now, we will calculate the volume of the atom as follows.

V = $\frac{4}{3} \times \pi \times r^{3}$

= $\frac{4}{3} \times 3.14 \times (70)^{3}$

= 1436758.4 $pm^{3}$ (cubic picometers)

thus, we can conclude that volume of the nucleus is 82 $fm^{3}$ and volume of the atom is 1436758.4 $pm^{3}$ .

7 0

2 years ago

Carbon dioxide gas is produced by the reaction of oxygen gas and solid carbon . Write a balanced chemical equation for this reac

grandymaker [24]

I think it’s like this.

C+2O→CO2

5 0

3 years ago

A piece of metal has a volume of 38 cm and a mass of 277 g calculate the density of the metal

anyanavicka [17]

Density
=mass÷volume
=277÷38
=7.29 g/cm3

6 0

2 years ago