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1 year ago

The density of silver is 10.5 g/cm3g/cm3. part a what is this value in kilograms per cubic meter?

Physics

1 answer:

OLEGan [10]1 year ago

5 0

The correct answer for the density of silver in kilograms per cubic meter is 10500 kg/m^3.

Silver has a density of 10.8103 kg/m3.Pure silver is nearly white, lustrous, soft, very ductile, and malleable, and it is an excellent heat and electricity conductor. Although it is not a chemically active metal, it is attacked by nitric acid (which forms nitrate) and hot concentrated sulfuric acid.

Atomic weight: 107.87 g.mol-1

At 20°C, the density is 10.5 g.cm-3.

962 °C melting point

2212 °C is the boiling point.

Silver has long been used in the manufacture of coins, ornaments, and jewelry due to its relative scarcity, brilliant white color, malleability, ductility, and resistance to atmospheric oxidation. Silver, along with gold and the platinum-group metals, is one of the so-called precious metals.

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You might be interested in

explain why balancing the torques acting on a body is not enough to establish equilibrium. give an example to justify your answe

igor_vitrenko [27]

To establish equilibrium all torques need to be justified , the body needs to be in translational as well as rotational equilibrium.

<h3>What is equilibrium and why balancing the torques is not enough to establish equilibrium?</h3>

Equilibrium is a condition of balance between forces, or influences from opposite ways .
For a body to attain equilibrium , need to have both translational as well as rotational equilibrium.
Force is responsible for translational equilibrium and torque is responsible for rotational equilibrium.
Considering a rod , and applying equal forces at the ends of the rods in upward direction, and seeing the net torque to be zero.
Hence the body needs to be in both translational and rotational equilibrium to attain equilibrium.

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3 0

1 year ago

If the net work done on an object is zero, what can you determine about the object's kinetic energy?(A) The object's kinetic ene

aev [14]

Answer:

(D) The object's kinetic energy is zero.

Explanation:

Work theory

Work (W) is defined as the product of force F) by the distance (d)the body travels due to this force:

W= F*d Formula ( 1)

The component of the force that performs work must be parallel to the displacement.

Kinetic Energy Theory

Kinetic energy is the energy associated with bodies that are in motion, depends on the mass and speed of the body.

Ek =(1/2)*m*v²

The kinetic energy, Ek, is measured in joules (J), the mass, m, is measured in kilograms (kg) and the velocity, v, in meters / second (m / s).

Relationship between work and kinetic energy

A body remains at rest if the force applied is zero or if it does not move. In both cases the work will be zero.

For work and kinetic energy to have a non-zero value, the body must be in motion.

In other words, the work is equal to zero if there is no displacement, so its speed will be zero, the same as its kinetic energy.

7 0

4 years ago

Consider hitting a baseball with a bat. If we call the force on the bat against the ball the action force, identify the reaction

Nadya [2.5K]

Answer:

Explanation:

Action and reaction force are an integral part of third law of Newton . They are equal and opposite force - couple which act on two opposite objects. That is why they can not make a body in equilibrium.

In the given case, a bat is hit by a ball , at the point of contact , two equal and opposite forces emerge simultaneously , one acting on the ball and the other acting on the bat. As per the problem , force on the bat is called action . So the other force , that is force acting on the ball is called reaction force.

3 0

3 years ago

What is the relationship between height of high tide and height of low tide for any location? ( Small answer please :) ! )

Lera25 [3.4K]

Answer:

Tides are very long-period waves that move through the oceans in response to the forces exerted by the moon and sun. They originate in the oceans and progress toward the coastlines where they appear as the regular rise and fall of the sea surface. When the highest part or crest of the wave reaches a particular location, high tide occurs; low tide corresponds to the lowest part of the wave, or its trough. The difference in height between the high tide and the low tide is called the tidal range. Tidal range is the height difference between high tide and low tide.

7 0

3 years ago

A block weighing 87.0 N rests on a plane inclined at 24.1° to the horizontal. The coefficient of the static and kinetic friction

Tom [10]

Answer:

15.7 N

Explanation:

Draw a free body diagram. The block has four forces acting on it. Gravity pulling down, normal force pushing perpendicular to the plane, friction pointing up the plane, and applied force F pushing up the plane.

Sum of the forces normal to the plane:

∑F = ma

N − mg cos θ = 0

N = mg cos θ

Sum of the forces parallel to the plane:

∑F = ma

Nμ + F − mg sin θ = 0

F = mg sin θ − Nμ

Substituting:

F = mg sin θ − mgμ cos θ

F = mg (sin θ − μ cos θ)

Given mg = 87.0 N, θ = 24.1°, and μ = 0.25 (because the block is not moving):

F = 87.0 N (sin 24.1° − 0.25 cos 24.1°)

F = 15.7 N

4 0

3 years ago