Answer:
The mass of the object is 5.045 lbm.
Explanation:
Given;
kinetic energy of the object, K.E = 1558.71 ft.lbf
velocity of the object, V = 141 ft/s
The kinetic energy of the object is calculated as;


Therefore, the mass of the object is 5.045 lbm.
Anywhere from 400 to 600 degrees Celsius
Explanation:
Let us assume that Z is the energy transported across an area of
per hour by an electromagnetic wave with an r.m.s speed of 21.5 V/m.
Therefore, first we will calculate the current as follows.
I =
= 
= 0.441 J
Therefore, we can conclude that 0.441 J energy is transported across a given EM wave.
Explanation:
you add the from head to tail. Head is the triangle and tail is the final point of the vector