Why would it be hard to find the ideal light intensity if the temperure were very hot or cold?

Physics

1 answer:

grandymaker [24]2 years ago

6 0

The correct answer for this question is this one:

Light intensity is not dependent on temperature, with that said, plants (assuming that is what were talking about) would dehydrate faster at a higher temperature (unless they had mechanisms to cope e.g. C4 and CAM plants) with the same light intensity.

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A 1.34 kg ball is connected by means of two massless strings, each of length L 1.70 m, to a vertical, rotating rod. The strings

zheka24 [161]

Answer:

The ball and the strings are shown in the attached figure

Balancing the forces in Y direction we have

$35sin(\theta )=1.34\times 9.81+T_{2}sin(\theta )\\\\sin(\theta )=\frac{0.85}{1.7}=0.5\\\\\therefore T_{2}=\frac{35sin(\theta )-13.14N}{sin(\theta )}\\\\T_{2}=8.72N$

The magnitude of net force on ball in

1) Y direction is zero since there is no acceleration of ball along y direction.

2)In x direction is given by $35cos(30)+T_{2}cos(30)=37.88N$

The force in the x direction provides centripetal acceleration for the ball thus we have

$35cos(30)+T_{2}cos(30)=37.88N\\\\37.88=\frac{mv^{2}}{r}\\\\\therefore v=\sqrt{\frac{37.88\times r}{m}}\\\\r=1.70cos(30)=1.47m\\\\\therefore v=\sqrt{\frac{37.88\times 1.47}{1.34}}=6.44m/s\\\\$