Answer:
Hydrosphere:ocean currents
Explanation:
Earth's biosphere has to do with the parts of the earth where life exists. The biosphere includes portions of the earth such as the lithosphere (the outer part of the earth), the atmosphere, the hydrosphere(the region of the earth's water resources).
Cyrosphere refers to those portions of the earth in which water is in solid form or frozen, such as sea ice, lake ice,glaciers and frozen ground. For example, the waters in the Arctic and in Antarctica. Related topics includes glacier thickness.
Geosphere is made up of the solid part of the earth; its rocks, minerals and surface and interior landforms. Related topics in the geosphere include plate tectonics, mountain formation, ocean ridges, earth's mantle. etc.
Hydrosphere refers to all the regions where water is found on the earth. It includes, surface water, underground water, ice as well as water vapor. A related topic is ocean currents.
<span>An ion has an electrical charge because it either has more electrons than protons or it has more protons than electrons. Electrons, which are found in the shells of an atom, have a negative charge, while protons, found in the atom's nucleus, have a positive charge.</span>
Answer:
The scale reads the tension in the string. The tension in the string is 100 N. This is the force the string must exert up on either of the 100-N weights at either end of the string.
Nothing is moving, nothing is accelerating, so the net force on the spring is zero. Likewise, the net force on either of the 100-N weights is also zero. But that is another question. The spring scale does not measure the net force. The spring scale simply measures the tension, the magnitude of the force exerted by the string.
Explanation:
Answer:
66.0 atm
Explanation:
We can calculate the osmotic pressure (π) using the following expression.
where,
Step 1: Calculate i
Sodium sulfate completely dissociates according to the following equation.
Na₂SO₄ ⇒ 2 Na⁺ + SO₄²⁻
Since it produces 3 ions, i = 3.
Step 2: Calculate M
We can calculate the molarity of Na₂SO₄ using the following expression.
Step 3: Calculate T
We will use the following expression.
K = °C + 273.15
K = 20°C + 273.15 = 293 K
Step 4: Calculate π