Answer:
Step-by-step explanation:
Data Given: m = 70 kg , g = 9.8 ms^-2, h =10m.
For this case we can use the following formula:

For this case we need to find an expression for the force in terms of the distance. And since on this case the total distance is 10 m long we can write the expression like this:

The only acceleration on this case is the gravity and if we replace the values given we got:

Now we can find the required work with the following integral:


To solve this problem do this: ( 3 x 5 x 8 ) - ( 2 x 8 ) = 104
Answer:
14°
Step-by-step explanation:
Both angles are vertical angles and are opposite, hence, from angle theorem., vertically opposite angles are equal :
Angle EGD = Angle FGH
Angle EGD = (4x + 8)
Angle FGH = 64
HENCE,
4x + 8 = 64
4x = 64 - 8
4x = 56
x = 56/4
x = 14°
Answer:
0.16
Step-by-step explanation:
I took the test
Answer: 168 hours
Step-by-step explanation:
There are 24 hours in a day. Thus, simply multiply 7*24 to get 168.