Answer:
23.9m
Explanation:
step one:
This problem is on energy.
we can proceed by using the expression for potential energy to solve for height h
we know that
PE=mgh
given that
mass m= 5kg
PE= 1176 joules
step two:
we can substitute our data and find h
1176= 5*9.81*h
1176=49.05h
step three:
divide both sides by 49.05 we have
1176/49.05=h
h=23.9 m
The height of the tree is 23.9m
Answer:
prefix that means 1/100 = Centi
prefix that means 1,000 = Kilo
prefix that means 1/1000 = Milli
Explanation:
Answer:
Option C
16 Km/h
Explanation:
Dana is moving in opposite direction compared to the train.If we denote w-velocity of train with respect to ground and u- velocity of passenger with respect to train and v-velocity of passenger we can using classical mechanics claim that v = w-u
v=20-4=16 km/h
The downward sliding characteristic of ridge-push is the result of <span>Gravity</span>
