I
State how energy is transferred from in a steam turbine.
Mechanical work
State the stores between which energy is transferred.
When a stone fallas from cliff
...............................-> ..................................
Gravitational potential energy -> kinetic energy
What is my favorite colour?
Black
State how energy is transferred from in generator.
Electrical work
What kind of ion for Cl
Cl-
What kind of reagant for protein test?
Iodine solution
Calculate the energy of mass of 5 kg travelling at 6 m/s
Ek = 1/2 x 5 x 62
Ek = 90 J
Taking g = 9.8 N/kg, calculate the gravitaional potential energy gained by mass of 5.1 kg raised to heigh 0f 10 m above the ground
499.8 J
Taking g = 9.8 N/kg, calculate the gravitaional potential energy gained by mass of 5.1 kg raised to heigh 0f 25 m above the ground
Ep = 5.1 x 9.8 x 25
Ep = 1249.5 J
what is my favorite food?
Martabak keju
Calculate the velocity of the truct with kinetic energy 2.7 kJ and mass 600kg.
3 m/s
A box of mass 5 kg is dropped from a height of 5.1 m.
The kinetic energy of the box just before it reaches the ground.
Ep = Ek
150 J
Calculate the mass of truck with kinetic energy 8 kJ and velocity 2 m/s
4000 J
Abox of mass 3 kg is dropped from a height of 5.1 m.
the velocity of the box just before is strike the ground?
10 m/s
A box of mass 3kg is dropped from a heigh 5.1 m.
how many the gravitational potential energy of the box before it is dropped.
150 J
how many electron valency for Mg
2
What kind of reagant we use for starch test?
Benedict solution
Lipid consist of.... [2]
fatty acid and glycerol
Who the most pretty woman here?
Zihan
What kind of protein that we use to help transfer O2
haemoglobin