Answer:
-6m/s^2
Explanation:
Acceleration is the quantity that increase or decrease the velocity per time unit, that means, we can obtain that quantity by dividing change in velocity between time, in this case a=(Vfinal-Vinitial)/t, replacing a=(0m/s-60m/s)/10s , so a=-6m/s^2.
Answer:
a) emf = 0.01804 V
b) I = 0.03 A
Explanation:
a) The emf is calculated by using the following formula:
A: area of the loop = 0.0820m^2
B: magnitude of the magnetic field
dB/dt: change of the magnetic field, in time: 0.220 T/s
Where ФB is the magnetic flux, the surface vector and magnetic vector are perpendicular between them, and the area A is constant.
You replace the values of A and dB/dt in the equation (1):
b) The current in the loop is:
R: resistance of the loop = 0.600Ω
....................................
Answer:
Total Mechanical Energy of the gymnast = 1940J = 1.94 kJ
Explanation:
Total Mechanical Energy = KE + PE + SE
Kinetic Energy,
Potential Energy,
Strain Energy,
Since there is no force of deformation, x = 0, SE = 0
Total Mechanical Energy = 225 + 1715
Total Mechanical Energy of the gymnast = 1940J = 1.94 kJ
Meters Micrometers centimeters millimeters