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netineya [11]
3 years ago
14

You throw a ball straight up in the air trying to throw it as high as possible. What do you think happens to the balls kinetic e

nergy as it rises?
Chemistry
1 answer:
mote1985 [20]3 years ago
6 0
With the info given i would have to say their is no kinetic energy, it's all potential energy.
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5. Which material has the highest thermal conductivity? Which material has the highest electrical conductivity? Explain why ther
Afina-wow [57]

Answer:

Sliver

Explanation:

Silver has the highest electrical conductivity of all metals. :)

6 0
2 years ago
How many moles of gas are in a 35.0 L scuba canister if the temperature of the canister is 27.3 °C and the pressure is 200.8 ATM
Rama09 [41]

Answer:

285.4 moles of gas are in a 35.0 L scuba canister if the temperature of the canister is 27.3 °C and the pressure is 200.8 atm.

Explanation:

An ideal gas is a theoretical gas that is considered to be composed of randomly moving point particles that do not interact with each other. Gases in general are ideal when they are at high temperatures and low pressures.

An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law, an equation that relates the three variables if the amount of substance, number of moles n, remains constant and where R is the molar constant of the gases:

P * V = n * R * T

In this case:

  • P= 200.8 atm
  • V= 35 L
  • n=?
  • R= 0.082 \frac{atm*L}{mol* K}
  • T= 27.3 C= 300.3 K (being O C= 273 K)

Replacing:

200.8 atm* 35 L= n* 0.082\frac{atm*L}{mol* K} * 300.3 K

Solving:

n=\frac{200.8 atm* 35 L}{0.082\frac{atm*L}{mol* K} * 300.3 K}

n= 285.4 moles

<u><em>285.4 moles of gas are in a 35.0 L scuba canister if the temperature of the canister is 27.3 °C and the pressure is 200.8 atm.</em></u>

<u><em></em></u>

5 0
3 years ago
Equation below is used to determine the heat flux for convection
OLEGan [10]
Q=hc A (Ts-Ta)
q = heat transfered per unit time
A= heat transfer area of the surface
hc= convective heat transfer coefficient of the process
Ts= temperature of the surface
Ta= temperature of the air
7 0
3 years ago
During which process are of rock material being moved over earth’s surface by water and wind?
shtirl [24]
Wind and water erosion
 
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3 years ago
A solution of ammonia NH3(aq) is at equilibrium. How would the equilibrium
Dmitriy789 [7]

Answer:

If NH4+ is removed,  the reaction will shift toward products to replace the product removed.  This means the reaction will shift to the right.

Explanation:

A solution of ammonia NH3(aq) can be written through the following equation:

NH₃(aq) + H₂O(l) ⇌ NH₄⁺(aq) + OH⁻(aq)

If the concentration of one of the reactants changes, the balance will shift in such a way that the change in concentration is counteracted.

If NH4+ is removed, now there is less product, so the reaction will shift toward products to replace the product removed.  This means the reaction will shift to the right.

This principle is due to the fact that the equilibrium constant for this reaction is constant at a certain temperature. The ratio of reactants and products is fixed. Any change in concentration disrupts the balance and will result in the balance being restored.

7 0
3 years ago
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