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3 years ago

14

Which of the following would most likely cause a decrease in the quality supplied

1 answer:

soldier1979 [14.2K]3 years ago

4 0

AWhich of the following would most likely cause a decrease in the quantity supplied? A decrease in price.

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Question 2 of 10

makvit [3.9K]

Answer:

D.Entropy tends to increase.

Explanation:

The second of thermodynamics states that the state of entropy of the entire universe,as an isolate system, will always increase over time

7 0

3 years ago

Make a list of five materials or substances you use every day that are made from organic compounds. Write a minimum of one parag

Vaselesa [24]

1.)Baking powder NaHCO3; sodium bicarbonate Used for baking for cooking, releases CO2 in reaction with other ingredients.

2.)Detergent Sodium sulphate, sodium hydroxide and phosphatecompounds Used for washing clothes.

3.)Toothpaste Calciuym carbonate, sodium flouride Used for cleaning teeth.

4.)Salt NaCl; Sodium Chloride Used in seasoning for cooking; also used as preservative.

5.)Vinegar C2H4O2

acetic acid, ethanoic acid

Used as preservative and for seasoning foods. Utilized for various household cleaning uses.

6 0

3 years ago

A sand core used to form the internal surfaces of a steel casting experiences a buoyancy force of 225 n. the volume of the mold

pashok25 [27]

Newton’s second law gives us the relationship of force F, mass m and acceleration a. The formula is given as:

<span>F = m a --> 1</span>

However we also know that the relationship of mass m, density ρ, and volume V is:

<span>m = V ρ --> 2</span>

Therefore substituting equation 2 to equation 1:

F = ρ V a = ρ V g

where a is acceleration due to gravity, ρ is density of water and V is the volume of the casting, therefore:

F = (1x10^-3 kg/cm^3) (4840 cm^3) (9.8 m/s^2)

F = 47.432 kg m/s^2

F = 47.432 N

Going back to equation 1:

47.432 N = m (9.8 m/s^2)

m = 4.84 kg

<span>Hence the weight of the final casting is 4.84 kg</span>

5 0

4 years ago

Does the Hawaiian coral reef fish live in the sunlight zone?

ollegr [7]

Yes, Hawaiian Coral reef fish live in the sunlight zone or in other words the euphotic zone.

5 0

3 years ago

Read 2 more answers

A mass of 6 kg with initial velocity 16 m/s travels through a wind tunnel that exerts a constant force 8 N for a distance 1.6 m.

strojnjashka [21]

Answer:

$D=99.4665307m \approx 99.5m$

Explanation:

From the question we are told that

Mass $m=6kg$

Velocity of mass $V_m=16$

Force of Tunnel $F_t=8N$

Length of Tunnel $L_t=1.6$

Height of frictional incline $H_i=2.9$

Angle of inclination $\angle =16 \textdegree$

Acceleration due to gravity $g=9.8m/s^2$

First Frictional surface has a coeﬃcient $\alpha_1 =0.21\ for\ d_c=1$

Second Frictional surface has a coeﬃcient $\alpha _2=0.1$

Generally the initial Kinetic energy is mathematically given by

$K.E=\frac{1}{2}mv^2$

$K.E=\frac{1}{2}(6)(16)^2$

$K.E=768$

Generally the work done by the Tunnel is mathematically given as

$w_t=F_t*d_t$

$w_t=8*1.6$

$w_t=12.8J$

Therefore

$Total energy\ E_t=Initial\ kinetic energy\ K.E*Work done\ by\ tunnel\ W_t$

$E_t=K.E+E_t\\E_t=768J+12.8J$

$E_t=780.8J$

Generally the energy lost while climbing is mathematically given as

$E_c=mgh$

$E_c=(6)(9.8)(2.9)$

$E_c=170.52J$

Generally the energy lost to friction is mathematically given as

$E_f=\alpha *m*g*cos\textdegree*d_c$

$E_f=0.21*6*9.8*cos16*1$

$E_f=11.86965942 \approx 12J$

Generally the energy left in the form of mass $Em$ is mathematically given as

$E_m=E_t+E_c+E_f$

$E_m=(768J)-(170.52)-(12)$

$E_m=585.48J$

Since

$E_m=\alpha_2*g*m*d$

Therefore

It slide along the second frictional region

$D=\frac{585.46}{0.1*9.81*6}$

$D=99.4665307m \approx 99.5m$

6 0

3 years ago