Acceleration, in physics, is the rate of change of velocity of an object. An object's acceleration is the net result of any and all forces acting on the object, as described by Newton's Second Law.
<u>Answer :</u>
In Normal view of spreadsheet, select area need to be printed. Next, click on Print Area in File menu and then select Set Print Area.
<u>Explanation:</u>
In spreadsheet, a particular area can be selected for printing by the following steps :
Step1: Open the spreadsheet where you wanted to select the area.
Step 2: Select or highlight the cells which you want to print either using the mouse or keyboard. To select using mouse click and drag the mouse across the cells you need to select. To select using keyboard, hold down CTRL key and highlight.
Step 3: Go to the page layout tab.
Step 4: In page layout tab select Print Area icon.
Step 5: Now a pop up appears with two option namely set print area and clear print area.
Step 6: Select set print area. Now the selected range of cells can printed.
Answer:
Explanation:
When the spring is compressed by .80 m , restoring force by spring on block
= 130 x .80
= 104 N , acting away from wall
External force = 82 N , acting towards wall
Force of friction acting towards wall = μmg
= .4 x 4 x 9.8
= 15.68 N
Net force away from wall
= 104 -15.68 - 82
= 6.32 N
Acceleration
= 6.32 / 4
= 1.58 m / s²
It will be away from wall
Energy released by compressed spring = 1/2 k x²
= .5 x 130 x .8²
= 41.6 J
Energy lost in friction
= μmg x .8
= .4 x 4 x 9.8 x .8
= 12.544 J
Energy available to block
= 41.6 - 12.544 J
= 29 J
Kinetic energy of block = 29
1/2 x 4 x v² = 29
v = 3.8 m / s
This will b speed of block as soon as spring relaxes. (x = 0 )
Answer:
A .endoplasmic reticulum
Explanation:
Endoplasmic reticulum is the part of the plant cell that is responsible for the synthesis of proteins.
As the bright sun shines upon the water, the water slowly dissapears. This is an example of physical change because here the water is just transformed into water vapour. So only the state and the shape of the substance has changed. Its originality remains absolutely intact. In the second case where the same sunlight gives energy to the surrounding plants to convert water and carbon dioxide into sugar and oxygen gas, it is a chemical change. here new substances are formed and the identity of the original substances are lost.In chemical reactions, the mass of the product will always be the same as the mass of the reactants.