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Ugo [173]
3 years ago
7

Elaborate on the reason why heating water up will increase the rate of dissolving for a solute.

Physics
2 answers:
Triss [41]3 years ago
5 0

This is because heat energy is released when the solute dissolves in solution. Increasing temperature introduces more heat into the system. ... This increase in kinetic energy allows greater movement in the gas particles resulting in the intermolecular bonds between the gas solute and solvent being broken.

kumpel [21]3 years ago
5 0

Answer:D

Explanation:

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For the wing foil, dtermine the aerodynamic lift. Density
Brums [2.3K]

The lift is the force generated on a body that travels through a fluid, perpendicular to the speed of the incident current. The mathematical model is given as

F_L = \frac{1}{2} \rho A (V_t^2-V_u^2)

Here,

\rho= Density

A = Cross sectional Area

V_2 =  Upper Velocity

V_1 = Down Velocity

Our values are given as

\rho =1.21 kg/m3.

A= 200m2.

V_2=150m/s

V_1=100m/s

Replacing we have,

F_L = \frac{1}{2} \rho A (V_t^2-V_u^2)

F_L = \frac{1}{2} (1.21) (200) ((150)^2-(100)^2)

F_L = 1512500N

Therefore the areodynamic lift would be 1.512*10^6N

4 0
4 years ago
Most of the funding for research comes from the federal government or ? And is provided to Principal Investigators (PIs) through
densk [106]

Answer:  is a term generally covering any funding for scientific research, in the areas of both "hard" science and technology and social science. The term often connotes funding obtained through a competitive process, in which potential research projects are evaluated and only the most promising receive funding. Such processes, which are run by government, corporations or foundations, allocate scarce funds.

Explanation:

7 0
3 years ago
How much heat does it take to raise the temperature of 7.0 kg of water from
aksik [14]

Answer:

non of the above

Explanation:

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m= 7kg c= 4.18 temp= 46-25=21°

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6 0
3 years ago
Read 2 more answers
State one way to decrease the moment of a given force about a given axis of rotation.​
wlad13 [49]

Answer:

The moment of a given force about a given axis of rotation can be decreased by decreasing the perpendicular distance of force from the axis of rotation.

8 0
3 years ago
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a 12-kg block is pulled by a string at a 30 degree angle. if the string exerts a 50 n force, the block accelerates at 4.13 m/s2.
alexdok [17]

Let, frictional force is f and normal force is N.

Balancing horizontal forces :

50cos \ 30^o - f = 12 \times 4.13\\\\f = 50cos \ 30^o - 49.56\\\\f = -6.26\ N

Also, balancing vertical forces, we get :

N = mg + 50sin \ 30^o\\\\N =( 12\times 9.8 ) + (50\times sin \ 30^o)\\\\N = 142.6\ N

Therefore, the frictional force and normal force is -6.26 N and 142.6 N.

5 0
3 years ago
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