Answer:
wed fly forward 1,000 miles an hour towards the sun
Explanation:
B. A molecule moves in the same direction as a wave.
C. The vibration results in a molecule moving vertically.
D. The vibration of the point in the medium ends.
The scenario that would cause a sound to stop being produced is when a molecule moves through its normal position to the opposite side of its normal position. The answer is letter A. This is also known as destructive interference.
Answer:
Gravitational and resistance force.
Explanation:
The push or pull on any object which causes an object to move is called force. The forces can be of many types. The forces acting on the falling leaf are :
A) The star must be very large.
B) The star must be very small.
C) The star must be moving away from Earth.
D) The star must be moving closer to Earth.
Answer:
types of plastids
chloroplasts
chromoplasts
gerontoplasts
leucoplasts
Explanation:
ans
B)Only kinetic energy increases when the velocity of an object increases. .
C)Only potential energy decreases when an object’s height increases..
D)Objects always have more kinetic energy than potential energ
Taking into account the definition of kinetic and potencial energy, only kinetic energy increases when the velocity of an object increases.
Kinetic energy is a form of energy. It is defined as the energy associated with bodies that are in motion and this energy depends on the mass and speed of the body.
Kinetic energy is defined as the amount of work necessary to accelerate a body of a given mass and at rest, until it reaches a given speed. Once this point is reached, the amount of accumulated kinetic energy will remain the same unless there is a change in speed or the body returns to its state of rest by applying a force.
Kinetic energy is represented by the following formula:
Ec= ½ mv²
where:
On the other hand, potential energy is the energy that measures the ability of a system to perform work based on its position. In other words, this is the energy that a body has at a certain height above the ground.
Gravitational potential energy is the energy associated with the gravitational force. This will depend on the relative height of an object to some reference point, the mass, and the force of gravity.
So for an object with mass m, at height h, the expression applied to the gravitational energy of the object is:
Ep= m×g×h
where:
In this case, considering all of the above, the correct answer is option B) Only kinetic energy increases when the velocity of an object increases.
Learn more about kinetic and potential energy: