Question

One earthquake has magnitude 4.4. If a second earthquake has 640 times as much energy as the first, find the magnitude of the second quake.

Answer #1

One historic earthquake had a magnitude of 8.8 on the Richter
scale. How many times more intense was this than another historic
earthquake that had a magnitude of 8.2? (Round your answer to two
decimal places.)
_______times

Is the magnitude of an earthquake related to the depth below the
surface at which the quake occurs? Let x be the magnitude
of an earthquake (on the Richter scale), and let y be the
depth (in kilometers) of the quake below the surface at the
epicenter.
x
3.0
4.4
3.3
4.5
2.6
3.2
3.4
y
4.8
9.9
11.2
10.0
7.9
3.9
5.5
(a) Make a scatter diagram of the data.
Then visualize the line you think best fits the...

Is the magnitude of an earthquake related to the depth below the
surface at which the quake occurs? Let x be the magnitude
of an earthquake (on the Richter scale), and let y be the
depth (in kilometers) of the quake below the surface at the
epicenter.
x
2.9
4.4
3.3
4.5
2.6
3.2
3.4
y
4.9
10.3
11.2
10.0
7.9
3.9
5.5
(a) Make a scatter diagram of the data.
Submission Data
Then visualize the line you think best...

One car has one and a half times the mass of a second car, but
only half as much kinetic energy. When both cars increase their
speed by 6.5 m/s, they then have the same kinetic energy. What were
the original speeds of the two cars?

According to seismologists, an earthquake that registers 2 on
the Richter scale is hardly perceptible, while and earthquake that
measures 5 on this scale is capable of shattering windows and
dishes and is generally classified as "minor". The San Francisco
earthquake in 1989 caused great damage and registered 7.1 on the
Richter scale.
Richter scale: M=2/3logE-2.9 M is magnitude and E is energy in
Joules
a.) Compare the energy release of the San Francisco earthquake
to a level 5 minor...

Two particles, the first with 2 times the mass of the second,
have the same kinetic energy. What is the ratio between the
magnitude of the momentum of the first particle and the magnitude
of the momentum of the second particle?

1. Earthquake magnitudes are exponentially distributed, with a
mean magnitude of 4.7.
(a) What is the probability that the next earthquake will have
magnitude between 3.6 and 5.2? (2)
(b) What is the 85th percentile of the magnitude
distribution? (2)
2. Suppose that commuting times are uniformly distributed, and
range between 10 minutes and 55 minutes.
(a) What is the probability that an individual has a commuting
time between 20 and 40 minutes? (2)
(b) What is the 65th percentile...

2 protons are fired at a nucleus, the second one with 2 times
the velocityof the first. how would the elctrostatic energy of the
second protonat its turning radius compare with the electrostatic
energy of the first at its turning radius?

The first car has twice the mass of a second car, but only half
as much kinetic energy. When both cars increase their speed by 12
m/s m/s , they then have the same kinetic energy. Part A What were
the original speeds of the two cars?

Bulb B produces three times as much light and thermal energy as
bulb A, and bulb C produces four times as much light and thermal
energy as bulb A. The bulbs are connected in series to a 6.0 V
battery, and the steady current through bulb A is 1.0 A.
In 1.0 s, how much energy is dissipated as light and thermal
energy by bulb A?
In 1.0 s, how much energy is dissipated as light and thermal
energy by...

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