<span>Recall formula for Kinetic energy is:
KE = 1/2mv^2, where KE = 275J
and momentum (which is 25.0 kg m/s) = m*v
Therefore substitute for KE and mv in the equation above to get speed
=> 275 = 0.5 * 25 * v
v = 275/12.5
v = 22m/s
to get mass m, recall momentum = m*v
=> 25= 22*m
m= 25/22 = 1.3663kg</span>
Answer:
Name: Zinc
Symbol: Zn
Atomic Number: 30
Atomic Mass: 65.39 amu
Melting Point: 419.58 °C (692.73 K, 787.24396 °F)
Boiling Point: 907.0 °C (1180.15 K, 1664.6 °F)
Number of Protons/Electrons: 30
Number of Neutrons: 35
Classification: Transition metal
Crystal Structure: Hexagonal
Density at 293 K: 7.133 g/cm3
Color: bluish
('lil long, sorry)
Answer:
im pretty sure about C
Explanation:
a switch acts a resistor that can be turned on and off
Also it's the same for Automotive purposes
A liquid requires enthalpy of vaporization to transform into vapor or gas at its boiling point. Here the element absorbs heat from surroundings or heat source.
This energy is used in breaking the forces of attraction among the atoms and molecules of the element. The molecules get separated to higher distances. The energy is converted in to the kinetic energy of the molecules in gaseous form and into the internal energy in terms of the temperature of the gas.
I think it "Death rate" but I am not very sure though.
