Question

A platinum sphere with radius 0.2m is totally immersed in mercury. a) find the weight of the sphere b.) find the buoyant force acting on the sphere, and c.) find the spheres apparent weight. The densities of platinum and mercury are 2.14x10^4 and 1.36x10^4

Answer #1

A platinum sphere with radius 0.0155 m is totally immersed in
mercury. Find the weight of the sphere, the buoyant force acting on
the sphere, and the sphere\'s apparent weight. The densities of
platinum and mercury are 2.14 × 104 kg/m3 and 1.36 × 104 kg/m3,
respectively.

Metal sphere A, with a radius RA = 2.00 mm, is fixed at the
origin. A smaller metal sphere B (mB = 10.0 grams, RB = 1.00 mm) is
tethered to sphere A by a thin, taut conducting string that is 1.00
m long, connecting the surface of A to the surface of B. A total
charge of 9.00 C is placed on the connected spheres.
(a) Assuming no charge remains on the thin string, determine how
the 9.00 C...

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cdnfskdfjkdjlkdfjksdjfw993jfnvhgfjskn ejsdfkwealdkfjwjefkMetal
sphere A, with a radius RA = 2.00 mm, is fixed at the origin. A
smaller metal sphere B (MB = 10.0 grams, RB = 1.00 mm) is tethered
to sphere A by a thin, taut conducting string that is 1.00 m long,
connecting the surface of A to the surface of B. A total charge of
9.00 C is placed on the connected spheres. (a) Assuming no charge
remains on the thin string, determine how...

please solve the following :-
A. A sphere of radius 3 cm, carries a volume charge density of 5
− ??2, where d is constant. Find the value of d so the Electric
field vector is zero outside the sphere?
B.Two conducting spheres of radius 10 cm each. The
center-to-center distance between the two spheres is 2 meters. Each
sphere carries a charge of 16μC. Find the potential in the middle
between the two spheres.
C. Two conducting, concentric spheres...

2) A solid sphere with mass 2kg and radius 0.2 meters is
rotating clockwise about its center with ωi =5 rad/s. a) Find its
Moment of Inertia. b) We want to double its angular speed in 3 full
turns of the sphere. Find its acceleration.c) A constant force is
acting on the edge with 135 degrees angle. Find the Force needed to
for this acceleration

In addition to the buoyant force, an object moving in a liquid
experiences a linear drag force Fdrag = (bv, direction opposite the
motion), where b is a constant. For a sphere of radius R, the drag
constant can be shown to be b = 6πηR, where η is the viscosity of
the liquid. Consider a sphere of radius R and density ρ that is
released from rest at the surface of a liquid with density ρf.
a. Find an...

1.)The Buoyant Force from a fluid to an object depends on which
of the following factors?
a.)The volume of the object
b.)The volume of the fluid
c.)The density of the fluid
d.)The density of the object
2.)Why did the Titanic sink after it hit an iceberg and water
rushed into the hull through the hole created by the
collision?
a.)The density of water has increased
b.)The density of the boat increased
c.)The mass of the boat has decreased
d.)The volume...

A) Show that the equation represents a sphere, find its center
and radius:
x2+y2+z2-2x-4y+8z=15
B) Find the equation of the sphere if one of its diameters is
between the points (2,0,0) and (0,6,0)
C) Describe in words or with a drawing the region represented by
x2+y2=9, z= -2
D) Find the length of the sides of the triangle that passes
through the following points and determine if it is a rectangle,
isosceles, equilateral: (5,3,4), (7,1,3), (3,5,3)

→A cart with a mass fo 1.5 kg needs to complete a 1.5 meter
radius loop the loop. What is the minimum velocity? a. 3.83 b. 12.2
c. 15.62 d. 14.7 e. 9.95
→A 30.0 N force is applied to the edge of a sphere that has a
weight of 45.0 N and a radius of 40.0 cm. The sphere is at rest
before the applied force. What will be the angular velocity of the
sphere as a result of...

1. A standard 1 kilogram weight is a cylinder 54.0 mm in height
and 41.0 mm in diameter. What is the density of the material?
______kg/m3
2. Two spheres are cut from a certain uniform rock.
One has radius 4.70 cm. The mass of the other is eight times
greater. Find its radius.
______ cm
3. A solid piece of lead has a mass of 29.22 g and a volume of
2.59 cm3. From these data, calculate the density of...

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