Question
As it is known the density is given by d=m/V where m is the mass and...
As it is known the density is given by d=m/V where m is the mass and v is the volume of the material..
A)Consider that our planet has a perfect sphere shape, find the mean density of our planet in the unit of g/cm3
B)As it is know that the sun in our universe will reach its end after a few billion years. Assuming the mass of the sun will remain same (1.9891*10^30 kg) calculate the density if the sun's diamater is 15,000 kmkm after a few billion years?
C)A star has the similar mass with our sun and the diameter of this star is 22 km . Find the denisty of the star with the unit of g/cm3
Homework Answers
Answer #1
Not the answer you're looking for?
Similar Questions
a) In 2017, NASA announced the discovery of seven planets with sizes similar to the Earth...
a) In 2017, NASA announced the discovery of seven planets with
sizes similar to the Earth orbiting a red dwarf star 40 light years
away. Based on the data in the table shown, what is the
acceleration due to gravity on planet g?
(B) Use the orbital data for planet g and Kepler's 3rd Law to
find the mass of the star these planets orbit. Give your answer
relative to the Sun's mass. For example, if the star were 1/2...
What mass of water is contained in 160 grams of 22.0% (m/v) KCl solution (Density of...
What mass of water is contained in 160 grams of 22.0% (m/v) KCl
solution (Density of solution: 1.1 g/mL)?
please show full solution,
(Indicate your answers to two digits
after the decimal)
A small bullet of mass m=0.27g and speed v=13m/s embeds in a block of mass M=0.98kg...
A small bullet of mass m=0.27g and
speed v=13m/s embeds in a block of mass
M=0.98kg suspended by a massless string
of length L, after a collision as shown in the figure. If the
bullet will appear on the other side of the block
M with a speed
v'=3.6m/s,
instead of being embedded in it, find the maximum height the block
M can reach. (Take g=9.81
m/s2). Express your answer using
two decimal places.
A small bullet of mass m=0.73g and speed v=13.5m/s embeds in a block of mass M=0.69kg...
A small bullet of mass m=0.73g and
speed v=13.5m/s embeds in a block of mass
M=0.69kg suspended by a massless string
of length L, after a collision as shown in the figure. If the
bullet will appear on the other side of the block
M with a speed
v'=5.6m/s,
instead of being embedded in it, find the maximum height the block
Mcan reach. (Take g=9.81
m/s2). Express your answer using
two decimal places.
Neutron Star Physics Under some circumstances, an ordinary star can undergo gravitational collapse into an extremely...
Neutron Star Physics
Under some circumstances, an ordinary star can undergo
gravitational collapse into an extremely dense object made mostly
of neutrons. This type of star is called a "neutron star". A
neutron star has a mass density roughly 1014 times
larger than that of ordinary solid matter.
Suppose we represent an ordinary star as a uniform solid rigid
sphere, both before and after the collapse. The original star's
initial radius is 7.0 x 105 km (comparable to the size...
The total mass of a variable density rod is given by where m = mass, ρx=...
The total mass of a variable density rod is given by
where m = mass, ρx= density,
Ac(x)= cross-sectional area, x=
distance along the rod, and
L= the total length of the rod. The following data have
been measured for a 20m length rod.
Determine the mass in grams to the best possible accuracy.
x,m
0
2
4
6
8
10
12
14
16
18
20
ρ, g/cm2
4.00
3.98
3.95
3.89
3.80
3.74
3.6
3.55
3.41
3.37
3.30
Ac,...
(a) Given a volume D, a speed v and a mass density ρ, find an expression...
(a) Given a volume D, a speed v and a mass density ρ, find an
expression with the units of power.
(b) Suppose that in the context of crew racing, where large and
small boats of the same design carry n rowers, that the sustained
speed of a boat depends on its displacement D, the power P provided
by the rowers, and the density of water ρ. Suppose that the
displacement and the power both increase linearly with the number...
The mass of the Sun M = 2.0×1030 kg, and G = 6.67×10-11 Nm2 /kg2 a)....
The mass of the Sun M = 2.0×1030 kg, and G = 6.67×10-11 Nm2
/kg2
a). A spaceship of mass m = 7.5×104 kg is on a circular orbit of
radius r1 = 2.5×1011 m around the Sun. The captain of that
spaceship decides to increase the radius of his orbit to r2 =
4.0×1011 m. What is the minimum amount of energy he has to expand
using his engines to move to this higher orbit? [Assume that the
ship...
If ρ(x,y) is the density of a wire (mass per unit length), then m=∫Cρ(x,y)ds is the...
If
ρ(x,y) is the density of a wire (mass
per unit length), then
m=∫Cρ(x,y)ds
is the mass of the wire. Find the mass of a wire having the
shape of a semicircle x=1+cos(t),y=sin(t), where t is on
the closed interval from 0 to π, if the density at a point
P is directly proportional to the distance from the
y−axis and the constant of proportionality is 3. Round in
the tenths place.
1. Inside a Red Giant, denser elements fuse and emit sufficient energy to balance thermal expansion...
1. Inside a Red Giant, denser elements fuse and emit sufficient
energy to balance thermal expansion versus gravity, until fusion
of:
silica & sulphur
helium
carbon & oxygen
iron
deuterium & tritium
2. Structure of the Universe: 2dF and the Sloan Microwave
Digital Survey plotted clusters of galaxies. What kind of structure
was seen among super-clusters of galaxies?
Filaments of galaxies surround voids that have no or very few
galaxies inside.
Super-clusters expand outward from a Big Bang source.
Super-clusters...
ADVERTISEMENT
Need Online Homework Help?
Get Answers For Free
Most questions answered within 1 hours.
ADVERTISEMENT
Active Questions
asked 38 seconds ago
asked 13 minutes ago
asked 15 minutes ago
asked 19 minutes ago
asked 24 minutes ago
asked 33 minutes ago
asked 39 minutes ago
asked 44 minutes ago
asked 45 minutes ago
asked 51 minutes ago
asked 1 hour ago
asked 1 hour ago