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Xelga [282]
3 years ago
11

James took two pea plants, placing one in a dark closet and the other on a sunny window sill. Both are located in air-conditione

d rooms. He then measured the growth of the pea plants after a week. The growth of pea plants in this experiment is a(n) __________. Question 7 options: A) constant B) dependent variable C) control D) independent variable
Physics
1 answer:
lord [1]3 years ago
6 0
Dependent variable: it is dependent on the amount of light received.
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A light wave travels through water (n = 1.33) at an angle of 35°. What angle
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A 800-gram grinding wheel 27.0 cm in diameter is in the shape of a uniform solid disk. (We can ignore the small hole at the cent
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Explanation:

d = Diameter of wheel = 27 cm

r = Radius = \frac{d}{2}=\frac{27}{2}=13.5\ cm

m = Mass of wheel = 800 g

\omega_i = Initial angular velocity = 245\times \frac{2\pi}{60}\ rad/s

Equation of rotational motion

\omega_f=\omega_i+\alpha t\\\Rightarrow \alpha=\frac{\omega_f-\omega_i}{t}\\\Rightarrow \alpha=\frac{0-245\times \frac{2\pi}{60}}{50}\\\Rightarrow \alpha=-0.51312\ rad/s^2

Moment of inertia is given by

M=\frac{1}{2}mr^2\\\Rightarrow M=\frac{1}{2}\times 0.8\times 0.135^2\\\Rightarrow M=0.00729\ kgm^2

Torque is given by

\tau=I\alpha\\\Rightarrow \tau=0.00729\times -0.51312\\\Rightarrow \tau=-0.0037406448\ Nm

The torque the friction exerts is -0.0037406448 Nm

For more information on torque and moment of inertia refer

brainly.com/question/13936874

brainly.com/question/3406242

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Which of the following examples show increasing potential energy?
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D. Riding a bike uphill
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What evidence have you discovered to describe a wave
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