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denpristay [2]
2 years ago
5

Describe what Darwin observed during his voyage on the HMS Beagle

Chemistry
2 answers:
melisa1 [442]2 years ago
6 0
I think he saw birds of striking different form and structure to those of Europe and went further to establish that it was due to evolution. 
labwork [276]2 years ago
6 0
I think he saw birds of striking different form and structure to those of Europe and went further to establish that it was due to evolution. 
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Un deportista de 72 kg trepa por una cuerda hasta una altura de 12m. Calcula el incremento de energía potencial gravitatoria que
Oxana [17]

A 72 kg athlete climbs a rope to a height of 12m. Calculate the increase in gravitational potential energy it has experienced.

Answer:

8467.2J

Explanation:

Given parameters:

Mass of the athlete = 72kg

Height of the climb  = 12m

Unknown:

Increase in gravitational potential energy it has experienced = ?

Solution:

Gravitational potential energy is the energy due to the position of a body. It is mathematically expressed as;

  Gravitational potential energy  = m x g x h

m is the mass

g is the acceleration due to gravity  = 9.8m/s²

h is the height

   Insert the parameters and solve;

  Gravitational potential energy  = 72 x 9.8 x 12

  GPE = 8467.2J

4 0
3 years ago
How is a lithium atom (Li) different from a lithium ion (Li+)
UkoKoshka [18]

Answer:

(Li) has fewer electrons than (Li+)

3 0
2 years ago
8. The standard enthalpy of formation of RbF(s) is –557.7kJ/mol and the standard enthalpy of formation of RbF(aq, 1 m) is –583.8
garri49 [273]

Explanation:

Given

The enthalpy of formation of RbF (s) is –557.7kJ/mol

The standard enthalpy of formation of RbF (aq, 1 m) is –583.8 kJ/mol

The enthalpy of solution of RbF = Enthalpy of RbF (aq) - Enthalpy of formation of RbF (s)

= -583.8 - (-557.7)  kJ/mol

= -26.1 kJ/mol

The enthalpy is negative which means that the temperature will rise when RbF is dissolved.

3 0
3 years ago
It is not f so it could be anyother answer
uysha [10]
H is the answer :)
Hope that helps
4 0
3 years ago
Read 2 more answers
What best describes the goals of scientific investigation and technological development?
torisob [31]

Answer:

Scientific investigation aims to design and implement an experiment to learn new information, where

development aims to design a product to solve a problem.

Explanation:

8 0
2 years ago
Read 2 more answers
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