Answer:
The correct answer is option B. coal
Explanation:
Coal is made of remains of organic material including trees and other vegetation which got trapped beneath the earth’s surface or at the bottom of the swamps. After burial below the ground the organic material was acted upon by the high temperature and pressure in the absence of air to form peat. Peat after further processing for a longer period of time converted into coal
Answer:
after the sun sets or just as it is setting
Explanation:
a crescent moon is thin and reflects less sunlight during the daylight sky so it becomes difficult to spot, but can be spotted when the sun is setting or just sets.
Reference frames describe the position of points relative to the body. These frames <span>are used to specify the relationship between a moving </span>observer and the phenomenon or phenomena under observation. Reference frame definitely changes when the body is changing. That is the reason that in order t<span>o describe the position of a point that moves relative to a body that is moving relative to the Earth, it is usually convenient to use a reference frame attached to the moving body.</span>
Answer:
Explanation:
(1.7 m/cycle)(46 cycle/s) = 78.2 m/s
Answer:
both cannonballs hit the ships with the same horizontal speed
Explanation:
Hello!
A parabolic motion is characterized in that its vertical component in Y is constantly changing, this is due to the constant downward acceleration of gravity.
When the movement starts the speed at Y is maximum, then when it reaches its maximum height point its speed is zero, and finally it begins to increase downwards until it touches the floor.
On the other hand, the horizontal speed remains constant AS THERE IS NO ACCELERATION IN HORIZONTAL DIRECTION.
therefore both cannonballs hit the ships with the same horizontal speed
regards!
