A unit of pressure is called a a. bernoulli. b. pascal. c. pound. d. meter.
2 answers:
Answer:
b. Pascal
Explanation:
Pressure is defined as the ratio between a force and the surface area on which the force is applied:
where F is the force and A is the area.
The force is measured in Newtons (N), while the area is measured in squared meters (), so the Pascal (Pa), which is the units of measure of the pressure, is defined as:
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Answer:
Explanation:
Total letters available on the keyboard = 26
Doubling this amount to account for both upper and lower case letters.
Therefore, Total characters (Upper + Lower Case) = 52 characters
Total numbers on keyboard (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) = 10 characters
Underscore = 1 character
Thus, Total allowed characters = 52 + 10 + 1 = 63
This is a problem of the permutation as order of the characters results in a different name.
Our file name should be of atleast 3 and smaller than 7 (i.e. 6) characters
Therefore, total possible permutations can be obtained by subtraction permutation of 2 characters from the permutations of 6 characters.
Answer:
7)
8)
9)
10)
Explanation:
For the problems 7, 8 and 9 we just apply the definition of acceleration, since no more information is given, which is:
So for each problem we will have:
7)
8)
9)
For the problem 10, we use the equation of velocity in accelerated motion:
Since the ball starts from rest and the acceleration is that of gravity (we take the downward direction positive), we have:
Explanation:
It is given that,
An electric dipole consists of charges +2e and -2e separated by 0.82 nm
Charge,
Distance between charges,
Electric field strength,
(a) The magnitude of the torque on the dipole is given by :
When dipole moment is parallel to the electric field,
(b) When the dipole is perpendicular to the electric field,
(Since, p = q × d)
(c) When the dipole moment is anti parallel to the electric field,
Since,
Hence, this is the required solution.