Ionic solids, such as sodium chloride and nickel oxide, are used as building materials due to their strong bond and high melting points. They are rigid and brittle but can conduct electricity when molten or dissolved.
Ionic solids, such as sodium chloride and nickel oxide, are used as building materials. These solids are composed of positive and negative ions held together by electrostatic attraction. They have high melting points, are rigid and brittle, and do not conduct electricity in their solid state.
However, they conduct electricity when molten or dissolved. Many simple compounds formed by the reaction of a metallic element with a nonmetallic element are ionic. These are crystalline compounds composed of positively charged ions and negatively charged ions held together by electrostatic forces. They have high melting points and are typically brittle.
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Answer:
Osmosis and cellular transport
Explanation:
Explanation:
The given figure shows four balls A,B,C and D. Momentum of an object is defined as the product of its mass and velocity.
Momentum of ball A, p₁ = m₁v₁ = 0.7 kg × 15 m/s = 10.5 kg-m/s
Momentum of ball B, p₂ = m₂v₂ = 5.5 kg × 1.2 m/s = 6.6 kg-m/s
Momentum of ball C, p₃ = m₃v₃ = 5 kg × 2.5 m/s = 12.5 kg-m/s
Momentum of ball D, p₄ = m₄v₄ = 1.5 kg × 5 m/s = 7.5 kg-m/s
So, ball C has the greatest amount of momentum and ball B has the least amount of momentum.
two heavy bags of groceries upstairs to your
kitchen. Will you do more work on the bags if
you carry them up one at a time? Explain.
Answer:
no both remains same...
Explanation:
because the work done is given by the product of the both the masses added (m+m) Displacement
and second time when you carry the bags individually it comes out to be the same m×displacement + m×displacement