M = 40 Kg , g=9.8 m/s² , h = 2 m
PE = m g h
PE = (40) (9.8) (2)
PE = 784 J
KE = PE
½m v² = m g h
½ v² = g h
½ v² = (9.8) (2)
½ v² = 19.6
v² = 19.6×2
v² = 39.2
V = √39.2
V = 6.26 m/s
KE = ½mv²
KE = ½(40) (6.26)²
KE =783.8 J
The answer here is <span>The government is expansive</span>
Light is a <span>wave of vibrating electric and magnetic energy.</span>
Radium can be found in the carnotite sands of Colorado.<span> Greater amounts can be found in a region of Canada known as the Great Bear Lake. Radium can also be found in large amounts in some African countries, such as Zaire.</span>
