0
What else can I help you with?
Define constant angular velocity and explain how it applies to CD standards?
Constant angular velocity of a rotating disk means that, given a stationary base reference line and a zero line on the disk, both extending from the center of rotation to the outside edge of the disk, the periodic change in angle between the two lines remains a constant. Such a disk will have constant angular velocity (CAV) if its rate of rotation or revolutions per minute (RPM) remains constant.While it would be technically possible to have the linear velocity of the disk remain constant by gradually decreasing the speed of rotation as the player head moves across the disk (because the outer paths are longer than the inner ones), this would make things more complicated both for the recording and playback machines, and therefore more expensive.The paths of information on a CD (or DVD) are analogous to the grooves on an LP recording. The recording and playback heads move across the disk (CD or LP) as it rotates. Actually, of course, there is only one spiral path or groove; on an LP, it goes from the outside edge toward the center; on a CD/DVD, it goes in the opposite direction. In deciding on the parameters for the LP and CD, engineers had to involve the amount of data to be recorded and the spacing required to record that data versus the size of the disk, the speed of rotation, the data capacity of the disk material, and the sensitivity of both the recording and playback heads.The result of this engineering was set as the standard for recording audio LP's and CD's and, later, DVD's.
What does across from mean?
A house directly opposite my home, straight across the road, is therefore across from me.
Can you write a sentence using the word across?
He looked across the garden, but he did not see the cat anywhere.He looked across the garden, but he did not see the cat anywhere.He looked across the garden, but he did not see the cat anywhere.He looked across the garden, but he did not see the cat anywhere.He looked across the garden, but he did not see the cat anywhere.He looked across the garden, but he did not see the cat anywhere.He looked across the garden, but he did not see the cat anywhere.He looked across the garden, but he did not see the cat anywhere.He looked across the garden, but he did not see the cat anywhere.He looked across the garden, but he did not see the cat anywhere.He looked across the garden, but he did not see the cat anywhere.
How do you spell across in French?
Across is "à travers" in French.
What is the opposite of across in prepositions?
As a preposition, across can be used in many ways. Some examples of opposites in use:We can get to the other side across the lake or around the lake.We can travel to Spain sailing across the ocean or flying over the ocean.We will make it across the chasm or fall into the chasm.You may use the phone across the room or up the stairs.We can travel across the country or stay athome.We will make it across the border or land injail.
How will the velocity of the book change as it moves across a surface with no friction?
The velocity of the book will remain constant as it moves across a surface with no friction.
If a graph shows time on the horizonal axis and speed on the vertical axis a straight horizontal line across the graph would indicate?
The straight horizontal line would indicate constant speed.(NOT constant velocity. The velocity could very well be changing, but the graphdoesn't tell you anything about the direction of the motion, only that the speedis constant.)
What is the first law of motion to the motion of an ice skater sliding across the ice st a constant velocity?
The first law of motion, also known as the law of inertia, states that an object at rest will stay at rest, and an object in motion will stay in motion at a constant velocity unless acted upon by an external force. In the case of an ice skater sliding across the ice at a constant velocity, the skater will continue moving at that constant velocity unless a force (like friction or wind resistance) acts to change their motion.
Boy is pushing a 30 kg box across the floor at a constant velocity of 0.5 ms. How much work in Joules is done by the boy on the box if the velocity change to 1.0 ms?
The work done is zero because the velocity is constant. Work is only done when there is a change in velocity.
When is an object said to have uniform velocity?
An object is said to have uniform velocity when it is moving in a straight line and covers equal distances in equal time intervals. This means the object's speed remains constant and there is no change in its direction of motion.
If you push a chair across the floor at a constant velocity how does the force of friction compare with the force?
If the chair is moving at a constant velocity, the force of friction is equal and opposite to the force you are exerting on the chair. This is to maintain the equilibrium of forces acting on the chair.
What doe constant mean in science?
A constant variable is one that is not the independent variable (the one you are changing) or the dependent variable (the one you change). Constant variables are so named because in order for the experiment to be legitimate, it is expected that the scientist control them, thus keeping them constant across all trials. This ensures that changes in the dependent variable are only the result of changes in the independent variable.
If you slide a hockey puck across a frictionless ice rink these must be a horizontal force on it too keep it in the motion?
F=ma constant speed would mean 'a' acceleration is zero thus force zero. The puck would be in equilibrium, and the force would be zero at constant motion. Constant motion is constant velocity including the constant zero velocity.
What do you understand by channel of constant velocity?
The channel of constant velocity means that it is moving along a straigh line, and as every second of time goes by, the object travels through the same number of meters or we can say that it travels equal displacements per equal time intervals. Y.N.Rajesh........................
A ball rolled across a horizontal table moves at constant velocity.why?
The ball moves at a constant velocity because there are no external forces acting on it to change its speed or direction. The absence of any net force means there is no acceleration, allowing the ball to maintain a steady velocity. This state of motion is in accordance with Newton's First Law of Motion.
What does constants variable mean in science?
A constant variable is one that is not the independent variable (the one you are changing) or the dependent variable (the one you change). Constant variables are so named because in order for the experiment to be legitimate, it is expected that the scientist control them, thus keeping them constant across all trials. This ensures that changes in the dependent variable are only the result of changes in the independent variable.
When an object is pulling across a level surface at a constant velocity what force is the pulling force equal to?
When an object is moving across a level surface at a constant velocity, the pulling force is equal to the force of friction acting in the opposite direction. This force of friction is equal in magnitude and opposite in direction to the pulling force, resulting in a balanced situation where there is no acceleration.
