Answer:
The possible frequency of guitar are 842 HZ and 892 HZ.
Explanation:
given the beat frequency = = 25 HZ
we know that beat frequency = difference of frequencies of two instruments
therfore 25 = x-867 or 25 = 867-x
therefore x = 842 or 892
A kind of stimulus is that Optic flow. It occurs as spaceships in Star Wars accelerate to near-light speed and the stars appear to stream outward from the screen's Centre due to centripetal force.
providing the impression of forward momentum. The acceleration vector of an object undergoing UCM is always directed toward the centre because centripetal implies "towards the Centre."m Since the reference frame is spinning, centrifugal force—which is not a real force—occurs as a result of this motion. The centripetal force, which pushes the item in the direction of the circle's Centre and maintains uniform circular motion is called centripetal force, is the real driving force behind uniform circular motion.
The pattern of seemingly moving objects, surfaces, and edges in a visual scene that is brought on by the motion of the observer in relation to the scene is known as optical flow or optic flow. Another way to think of Optic flow is as the distribution of apparent motion velocities of brightness pattern in an image.
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The total kinetic energy of the system after collision is 223.5J
In elastic collision kinetic energy and momentum are conserved.
According to the question
mass of object a = 25kg
mass of object b = 25 kg
initial velocity of a u1 = 5.98 m/s
initial velocity of b u2 = 0
so from momentum conservation-
mau1 + mbu2 = (m1+m2)v
25kg × 5.98m/s + 25×0 = (25+25)v
v = 2.99 m/s
Now the total kinetic energy after the collision will be:
final kinetic energy = 1/2 (m1+m2) v²
= 1/2 (25+25)× (2.99)²
= 223.5 J
Thus, total kinetic energy of the system after collision is 223.5J
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Answer:
age of the site is 15411.75 years old
Explanation:
Given data
plant or animal dies = 14C
time period = 5730 year
carbon = 15.5%
to find out
age (in years) of the ancient site
solution
we know that Final value = Initial value ×
here n is half life passed
so for 15.5%
15.5% = 100% of
0.155 = 1 ×
now take log both side
log 0.155 = log
n = log 0.155 / log 0.5
n = 2.68966
we know here 5730 years in half life
so for 2.68966 half-lives = 2.68966 × 5730 = 15411.7518
age of the site is 15411.75 years old
The statement: "<span>A change in the thermal energy of an object is related to the object s specific heat, temperature change, and mass.</span>" is True. An object's total heat capacity is called heat capacity, and it is affected by the amount of thermal energy required to raise the temperature by 1 degree C.