QN 1. What kind of waves are present during an earthquake? Qn 2.How do you calculate density? Qn 3.Which of these is another way to write Newton's second law of motion?
Answers
Ans 1. Seismic waves r present during an earthquake.
Ans 2. Density can b calculated by knowing the mass n volume of the object. Divide the mass by the volume to know the density of the object.
Ans 3. Newton's second law of motion can b formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force and inversely proportional to the mass of the object.
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Answer:
1) Earthquakes radiate seismic energy as both body and surface waves. Traveling through the interior of the earth, body waves arrive before the surface waves emitted by an earthquake. These waves are of a higher frequency than surface waves. The first kind of body wave is the P wave or primary wave.
2)The Density Calculator uses the formula p=m/V, or density (p) is equal to mass (m) divided by volume (V). The calculator can use any two of the values to calculate the third. Density is defined as mass per unit volume.
3)In equation form, Newton's second law of motion is a=Fnet m a = F net m . This is often written in the more familiar form: Fnet = ma. The weight w of an object is defined as the force of gravity acting on an object of mass m.
(or)
F= ma as m*a = mass * acceleration
we say f is directly proportional to product of m and a so f=ma
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