Answer:
The greater wax moth developed the ability to hear frequencies up to 300kHz to trick bats, their chief predators.
Explanation:
Dogs commonly listen to frequencies of about 30 kHz. But nothing matches the moths 300-kHz maximum. Since there aren't any noises in an environment that get close, scientists hypothesize that greater wax moths developed super sensitive hearings to trick bats, their chief predators. it can hear wavelengths up to 300 kHz, well exceeding the range of any other creature and higher than any bat can sound.
Answer:
Power output =
Explanation:
Given:
Mass of the elevator is,
Height to which it is raised is,
Acceleration due to gravity is,
Time taken by the motor to raise the elevator is,
Now, work done on the elevator by the motor is equal to the increase in the gravitational potential energy of the elevator.
Increase in gravitational potential energy is given as:
Therefore, work done by motor is,
Now, we know that, power is work done in unit time. So, power output is given as:
Therefore, the power output of the first motor is
The two main states of mechanical energy are potential energy and kinetic energy.
In Grams it would be 509.85 (1 N=101.97g)
Answer:
Velocity
Explanation:
the speed of something in a given direction