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Can using a bicycle benefit health and the environment? Explain how?
Using a bicycle promotes physical health by improving cardiovascular fitness, building muscle strength, and reducing stress levels. Environmentally, it is a sustainable mode of transport that reduces air pollution and carbon emissions. Bicycles also help minimize noise pollution and traffic congestiRead more
Using a bicycle promotes physical health by improving cardiovascular fitness, building muscle strength, and reducing stress levels. Environmentally, it is a sustainable mode of transport that reduces air pollution and carbon emissions. Bicycles also help minimize noise pollution and traffic congestion in urban areas. They require fewer resources for manufacturing and maintenance compared to motor vehicles, making them an eco-friendly and health-conscious transportation choice.
See lessThe electron distribution in an aluminium atom is
(a) The electron distribution in an aluminium atom is 2, 8, 3. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/
(a) The electron distribution in an aluminium atom is 2, 8, 3.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/
See lessRutherford’s a-particle scattering experiment showed that (i) electrons have negative charge. (ii) the mass and positive charge of the atom is concentrated in the nucleus. (iii) neutron exists in the nucleus. (iv) most of the space in an atom is empty. Which of the above statements are correct?
(b) The experiment did not say anything about the charge of electrons, the neutrons were not discovered by that time. https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/
(b) The experiment did not say anything about the charge of electrons, the neutrons were not discovered by that time.
https://www.tiwariacademy.com/ncert-solutions/class-9/science/chapter-4/
See lessThe optimal value of the objective function is obtained at the points
The optimal value of the objective function in LPP is always obtained at the corner points of the feasible region. This is because the objective function is linear, and at one of the corner points due to the property of linear programming, the maximum or minimum occurs. Check this for more: https://Read more
The optimal value of the objective function in LPP is always obtained at the corner points of the feasible region.
This is because the objective function is linear, and at one of the corner points due to the property of linear programming, the maximum or minimum occurs.
Check this for more:
See lesshttps://www.tiwariacademy.com/ncert-solutions/class-12/maths/#chapter-12
Corner points of the feasible region determined by the system of linear constraints are (0, 3), (1,1) and (3, 0). Let Z = px + qy, where p, q > 0. Condition on p and q so that minimum value of Z occurs at (3, 0) and (1,1) is
To find the condition on p and q, we substitute the coordinates of the corner points 1, 1 and 3, 0 into the objective function Z = px + qy. 1. For point (1, 1): Z = p(1) + q(1) = p + q 2. For point (3, 0) Z = p(3) + q(0) = 3p For the minimum value of Z to occur at (3, 0) and (1, 1), the objective fuRead more
To find the condition on p and q, we substitute the coordinates of the corner points 1, 1 and 3, 0 into the objective function Z = px + qy.
1. For point (1, 1):
Z = p(1) + q(1) = p + q
2. For point (3, 0)
Z = p(3) + q(0) = 3p
For the minimum value of Z to occur at (3, 0) and (1, 1), the objective function value at (1, 1) must be greater than at (3, 0). So we require,
p + q ≥ 3p
q ≥ 2p
Therefore, the constraint on p and q is q = 2p.
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