Answer:
Explanation:
<u><em>Given:</em></u>
Mass = m = 100 kg
Acceleration due to gravity = g = 1.62 m/s²
<u><em>Required:</em></u>
Weight = W = ?
<u><em>Formula:</em></u>
W = mg
<u><em>Solution:</em></u>
W = (100)(1.62)
W = 162 N
<span>The correct option is C. Energy cannot be created or destroyed. This statement is known as law of conservation of energy, and it implies that whenever a certain form of energy does change, the loss of this form of energy must have converted into an another type of energy. A typical example is an object falling to the ground: initially, the object has gravitational potential energy. As the object falls down, it loses potential energy (since its altitude from the grounf decreases), but it acquires kinetic energy (because its velocity increases). In this example, potential energy has converted into kinetic energy, but the total energy of the object has remained constant.</span>
Answer:
The length of the pipe A is = 0.4763 m & the length of the pipe B is 0.357 m
Explanation:
Fundamental frequency = 360 Hz
Velocity = 343
(a). Length of the pipe is given by
Put all the values in above equation we get
= 0.4763 m
(b). Given that
The third harmonic of organ pipe B = the second harmonic of pipe A
Thus
Put all the values in above formula we get
0.357 m
Therefore the length of the pipe A is = 0.4763 m & the length of the pipe B is 0.357 m
D. Reacts with bases to produce salts
Answer:
The separation of the two slits is = 1.5 × m
Explanation:
Wave length = 630 nm = 0.63 mm
x = 35 mm
l = 2.8 m
Order of fringes (m) = 3
We know that the separation of the two slits is given by
Put all the values in above formula we get
d = 1.5 × m
Therefore the separation of the two slits is = 1.5 × m