Answer:
Disregard a goal if you don't achieve it
Explanation:
This is because in achieving your targets/goals/dreams rewarding yourself for every small accomplishment is very important. It’ll help to keep you motivated and keep your head in the game. Similarly setting short and long-term objectives also plays a vital role. Setting a date is also important because it helps you to put your plan into action. However, disregarding a goal isn’t an option
Please Mark Brainliest If This Helped!
Weight in water = mass of block - mass of volume of displaced water
Answer:
The velocity with which the mass will hit the floor is 
Explanation:
If the tension in the string is 
, for 
we have
,
and for the mass 
From these equations we solve for 
and get:
The kinematic equation
gives the final velocity 
of a particle, when its initial velocity was 
, and has traveled a distance 
while undergoing acceleration .
In our case
(the initial velocity of the particles is zero)
which gives us
which is the velocity with which the mass will hit the floor.
Answer:
255 Hz
Explanation:
The beat frequency is the difference in frequency between two frequencies that are close.
Let the the unknown frequency be 
.
Sounded with the 250 Hz tuning fork,
Sounded with the 270 Hz tuning fork,
The common value of in both situations is 255 Hz.
<span>1.
</span><span>Efficiency is the
measure of how efficient a process is. It is used to assess the ability of a
process in avoiding waste energy, materials, money and time in doing a
desirable output. It is calculated as;
Efficiency = useful energy ouput / total energy input</span>
<span>.40 = useful work / 200</span>
<span>useful work = 80 joules</span>
