Answer:
P.E = mgh = 120N
Step-by-step explanation:
v² = u² - 2as
At the top, the velocity is = 0
0² = 4² - 2 x 10 x s
4² = 20s
s = 16/20
s = 0.8metres.
It rose only 0.8metres.
Therefore P.E = 15 x 10 x 0.8
:. P.E = 15 * 8
:. P.E = 120N
If the current value of the baseball car is 50 times its original value, its original value will be its current value divided by 50.
Let

represent the current value of the baseball card. We know form our problem that $62 is 50 times the original value,

, of the baseball card, so translating this statement to an equation we get:



We can conclude that the original value of the baseball card was
$1.24.
Answer: Circumference of Earth= 25120 miles
Step-by-step explanation:
Given: The circumference of a circle can be found using the formula
, where d= diameter of the circle.
Earth's diameter = 8000 miles (approx)
The circumference of circle =
[substitute values in formula]
The circumference of circle = 25120 miles (approx)
Hence, the circumference of Earth= 25120 miles (approx)
Do a proportion
60/100= x/300
60 x 300= 18,000
18,000 divided by 100= 180
Answer is 180
Or you could have done .60 x 300 and got 180.
Answer: 6%
Step-by-step explanation: all you gotta do is dvide the numerator to the denominator