If a dog has a potential energy of 1500 J and a mass of 24 kg, how high off the ground is he?

h = 6.371 m

Explanation:

Data:

Potential Energy = P.E = 1500 J

Mass = m = 24 Kg

Gravity = g = 9.81 m/sec²

Height = h = ?

Solution:

As the formula for the Potential Energy is;

P.E = mgh

Replacing the values in the above equation

1500 = 24 × 9.81 × h

h = (1500)÷(24 × 9.81)

h = 6.371 m

Answer;

-Oxygen

Explanation;

-How fast the heart beats depends on the body's need for oxygen-rich blood. At rest, the SA node causes your heart to beat about 50 to 100 times each minute. During activity or excitement, your body needs more oxygen-rich blood; the heart rate rises to well over 100 beats per minute.

-The heart, like any organ, requires blood for oxygen and other nutrients so it can do its work. The heart does not gather oxygen or nutrients from the blood flowing inside it. Instead, it receives blood from coronary arteries that eventually carry blood into the heart muscle.