You must run at least 53.3333333 meters a minute.
Convection currents generated within the asthenosphere push magma upward through volcanic vents and spreading centres to create new crust. Convection currents also stress the lithosphere above, and the cracking that often results manifests as earthquakes.
Answer:
A) If you halve the wavelength, the electromagnetic radiation energy will double.
B) The energy of the electromagnetic radiation will halve if you halve the wavenumber.
C) When the frequency of the light is doubled, its energy will double.
Explanation:
The function for the light frequency is given as
The energy supplied to each electron is doubled by halving the wavelength, nearly doubling its kinetic energy by two after it is free from the metal. It is important to remember that for a given period of time, the number of electrons ejected will remain constant.
Cheers
<span>Wind power is produced from the
wind turbines or sails that uses air flow to convert it into mechanical power. It
is an alternative to fossil fuel burning, it is all around, renewable, clean,
produces no greenhouse gases and uses little land. The advantages of wind power
have been greatly praised by many. However, it has disadvantages. Wind power
especially at farm is noisy and may spoil the view for their neighboring people.
Also the amount of electricity depends on the strength of the wind. If no wind
is around, no electricity is produced. </span>
Answer:
2.59 Kg, 3.25 Kg
Explanation:
Acceleration can be found using equation
where s is the release distance, a is acceleration and t is time
Making a the subject of the formula
Substituting 0.28 for s and time for 1 second
Acceleration formula for the Atwood machine is given by
where m1 and m2 are first and second masses respectively
Two situations are possible
When m1>m2
Assuming m1 is 3.7kg which is heavier than m2
Substituting a for 
and m1 as 2.9Kg and taking acceleration due to gravity as 
10.37m2=28.449-1.624
10.37m2=26.825
m2=2.59 Kg
<u>When m1<m2</u>
Then m1=2.9Kg hence
-9.25m2=-28.449-1.624=-30.073
9.25m2=30.073
m2=3.25 Kg
