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3 years ago

Explain how respiration and photosynthesis are chemically opposite from each other

1 answer:

7 0

They are chemically opposite in that the reactants of one are the products of the other. One could not exist without the other to supply the materials.

You can look up the reactants and products in any Biology textbook. also In Photosynthesis carbon dioxide and energy is consumed to give sugar and Oxygen. 
while in Respiration oxygen and sugar is consumed to give energy and carbon dioxide is produced. 

Hence the two are opposite of each other. 

Now, since you need oxygen to respire there must be a constant supply of oxygen and plants are the source of oxygen since they produce oxygen due to photosynthesis, similarly plants need oxygen to do photosynthesis which is produced by respiration. 

Hence they both are dependent on each other HOPE IT HELP ;D

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You have your bicycle upside down for repairs, with is 66.0 cm diameter wheel spinning freely at 230 rpm. The wheel's mass is 1.

rosijanka [135]

Answer:

$\omega_f = 17.86\ rad/s$

Explanation:

given,

dia of wheel = 66 cm

radius = 33 cm = 0.33 m

mass of wheel = 1.90 Kg

speed of wheel = 230 rpm

time to hold the tire = 3.10 s

Normal force = 2.7 N

coefficient of friction = 0.46

final angular speed = ?

we know

F = μ N

F = 0.46 x 2.7 = 1.242 N

torque

τ = F r

τ = 1.242 x 0.33 = 0.409 Nm

moment of inertia for wheel

I = MR²

I = 1.90 x 0.33²

I = 0.2069 kg m²

we now,

τ = I x α

$\alpha = \dfrac{\tau}{I}$

$\alpha = \dfrac{0.409}{0.2069}$

α = 1.981 rad/s²

we know,

$\omega_f - \omega_i = \alpha\ t$

$\omega_f - (230\dfrac{2\pi}{60}) =- 1.981 \times 3.1$

$\omega_f - 24 = - 6.14$

$\omega_f = 17.86\ rad/s$

7 0

2 years ago

The diagram below shows eight different positions of the moon around Earth.

KATRIN_1 [288]

Answer:

6 and 8

Explanation:

The different positions of the moon, as seen from Earth, reflect how much light is being reflected off the moon from the sun.

Position 1 indicates the 3rd Quarter.

Position 2 indicates the Waning Gibbous.

Position 3 indicates the Full Moon.

Position 4 indicates the Waxing Gibbous.

Position 5 indicates the 1st Quarter.

Position 6 indicates the Waxing Crescent.

Position 7 indicates the New Moon.

Position 8 indicates the Waning Crescent.

You would read the diagram counterclockwise, with positions 7 to 3 as the moon increases light and positions 3 to 7 as the moon decreases light.

Therefore, we see that our 2 choices where we have a crescent is positions 6 and 8.

6 0

3 years ago

Two solenoids stand side-by-side. Solenoid B differs from solenoid A in three respects. Its total current is 2 times as great, i

vazorg [7]

Answer:

5. Solenoid B’s magnetic field is 2.7 times greater than solenoid A's magnetic field.

Explanation:

The magnetic field produced by a solenoid depends on number of coils, the length of the solenoid and the amount of current flowing through the coil.

$B=\frac{\mu \times N \times I}{L}$

Current in solenoid B is 2 times greater than the current in solenoid A.

$I_B=2I_A$

Number of coils in B is 4 times greater than coils in A

$N_B=4N_A$

Length of the solenoid B is 3 times greater than solenoid A

$L_B=3L_A$

$B_B=\frac{2\times 4}{3} B_A=2.7 B_A$

Thus, solenoid B's magnetic field is 2.7 times greater than magnetic field of solenoid A.

5 0

2 years ago

A wire is formed into a circle having a diameter of 19.0 cm and placed in a uniform magnetic field of 3.40 mT. The wire carries

nikklg [1K]

Answer:

Explanation:

Radius = 9.5 x 10⁻² m

area of circle = 3.14 x (9.5 x 10⁻² )²

A = 283.38 x 10⁻⁴ m²

magnetic moment = area x current

M = 283.38 x 10⁻⁴ x 5

= 1416.9 x 10⁻⁴ Am²

Torque = MBsinθ

M is magnetic moment , B is magnetic field .

Max torque = 1416.9 x 10⁻⁴ x 3.4 x 10⁻³ , for θ = 90

= 4817.46 x 10⁻⁷

= 481.7 x 10⁻⁶

= 481.7 μ J

Energy = - MBcosθ

Max energy when θ = 180

MB = 4817.46 x 10⁻⁷ J

Min energy = - 4817.46 x 10⁻⁷ for θ = 0

7 0

2 years ago

Anyone can help?? I need it done before 9am please!!

Delicious77 [7]

Answer:

The answer is below

Explanation:

The equation for a linear line graph is given by:

y = mx + b, where y and x are variables, m is the slope of the graph and b is the y intercept (that is value of y when x is zero).

The slope (m) of a line passing through two points $(x_1,y_1)\ and\ (x_2,y_2)$ is given by:

$m=\frac{y_2-y_1}{x_2-x_1}$

A) The first line passes through the point (0, 0) and (10, 60). It is represented as (time, velocity). Hence the slope is:

$m=\frac{60 -0}{10-0}=6\ m/min^2$

B) The second line passes through the point (10, 60) and (15, 60). Hence the slope is:

$m=\frac{60 -60}{15-10}=0\ m/min^2$

C) The third line passes through the point (15, 60) and (40, -40). Hence the slope is:

$m=\frac{-40 -60}{40-15}=-4\ m/min^2$

D) The third line passes through the point (40, -40) and (55, 0). Hence the slope is:

$m=\frac{0 -(-40)}{55-40}=2.67\ m/min^2$

6 0

2 years ago