Answer:
it has 3 electrons. brainliest please
Answer:
Explanation:
Now
Substituting the value of in the equation we get
the values here are used found in radians
So, at the value of .
Wood doesn't conduct heat as well as metal. That's why.
This type of a problem can be solved by considering energy transformations. Initially, the spring is compressed, thus having stored something called an elastic potential energy. This energy is proportional to the square of the spring displacement d from its normal (neutral position) and the spring constant k:
So, this spring is storing almost 12 Joules of potential energy. This energy is ready to be transformed into the kinetic energy when the masses are released. There are two 0.2kg masses that will be moving away from each other, their total kinetic energy after the release equaling the elastic energy prior to the release (no losses, since there is no friction to be reckoned with).
The kinetic energy of a mass m moving with a velocity v is given by:
And we know that the energies are conserved, so the two kinetic energies will equal the elastic potential one:
From this we can determine the speed of the mass:
The speed will be 7.74m/s in in one direction (+), and same magnitude in the opposite direction (-).
Answer:
The activation energy is
Explanation:
From the question we are told that
The rate constant is k
at the temperature
The value of k is
at temperature
The value of k is
The rate constant is mathematically represented as
Where Q is the activation energy
R is the ideal gas constant with a value of
C is a constant
T is the temperature
For the first rate constant
For the second rate constant
Now the ratio between the two given rate constant is
=>
substituting values
=>