If the echo is detected 2 seconds after the ping is transmitted,
then the sound has traveled
(2 sec) x (1533 meter/sec) = 3,066 meters.
But the sound had to travel down from the boat to the bottom, then
get reflected, then travel up from the bottom to the boat. So the
sound actually traveled a distance equal to double the depth.
The depth is (1/2) (3,066 meters) = 1,533 meters .
(about 5,030 feet)
Answer:
The identity of an element depends on the number of protons, neutrons, and electrons.
Explanation:
Answer:
Explained below
Explanation:
Newton's first law of motion: This law states that an object will remain at rest or continue in constant motion except it's acted upon by an external force. In projectile motion, the horizontal component of velocity will remain unchanged because we ignore air resistance since no force is acting in that horizontal direction.
Newton's second law of motion: This law states that force is the product of mass and acceleration. In projectile the force acts downwards, thus f = mg.
But g = a since internal forces will cancel out.
Thus, F = ma
Answer:
35 N to the right
Explanation:
When calculating net force when both forces are on the same side you add them when they are going against each other you subtract them.
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