Find resultant V
V = √(Vh² + Vv²)
Thus input the values.
Am sorry, i don't have a calculator in hand but that's the formula and when you obtain the answer, the magnitude is the numerical value obtained and the direction will be based on the interger of the numerical value.
E =mc²
= (5.0-kg)(3 x 10^8 m/s)²
= (5.0-kg) (9×10^16m²/s²)
E =4.5×10^17 J
Answer:
ΔH°comb=-5899.5 kJ/mol
Explanation:
First, consider the energy balance:
Where is the calorimeter mass and is the number of moles of the samples; is the combustion enthalpy. The energy balance says that the energy that the reaction release is employed in rise the temperature of the calorimeter, which is designed to be adiabatic, so it is suppose that the total energy is employed rising the calorimeter temperature.
The product is the heat capacity, so the balance equation is:
So, the enthalpy of combustion can be calculated:
I will be happy to solve any doubt you have.
A is the answer of course
Answer:
wavelength refers to the length of a wave from one peak to the next.the amplitude of a wave Is measured from the peak to the trough