Answer:
A
Step-by-step explanation:
Mechanical energy (ME) is Kinetic energy + potential energy
Where
Kinetic Energy (KE) = 1/2 * m * v^2
where m is the mass (in kg) and v is the speed of the object (in m/s)
and
Potential Energy (PE) = m*g*h
Where m is the mass (in kg) and g is the gravitational constant (9.81 m/s) and h is the height (in meters)
Hence
ME = KE + PE (note the pendulum DOES NOT have any speed, so v = 0, and thus KE = 0)
So,

Hence, Mechanical Energy is 9.8 Joules (rounded to 1 decimal place). Correct answer is A.
Answer:

Step-by-step explanation:
<em>Standard form</em>, also called <em>scientific notation</em>, is a more compact way of writing very big or very small numbers. All numbers in scientific notation have the form

where m is a number between 1 and 10, and b is an integer that represents how we've shifted the decimal point from the original number. For example, the number 23,000 in standard form would be written as 2.3 × 10⁴, since we have to shift the decimal point 4 places to the right to get back our original number.
We can turn 5,976,000,000,000,000,000,000,000 into a number between 1 and 10 by shifting the decimal 24 places to the left, giving us 5.976. We'll save that 24 as the exponent for our 10, giving us the final form

Answer:
The answer is a translation of 2 units to the left and 7 units up
Step-by-step explanation:
we know that
In the rule for the translation of a rectangle
(x, y) → (x – 2, y + 7).
the term (x-2) means a translation of 2 units to the left
the term (y+7) means a translation of 7 units up
Therefore,
The answer is a translation of 2 units to the left and 7 units up....
Answer:
the great
Step-by-step explanation:
usa united states