Answer:
a)
Explanation:
- A block sliding down an inclined plane, is subject to two external forces along the slide.
- One is the component of gravity (the weight) parallel to the incline.
- If the inclined plane makes an angle θ with the horizontal, this component (projection of the downward gravity along the incline, can be written as follows:
(taking as positive the direction of the movement of the block)
- The other force, is the friction force, that adopts any value needed to meet the Newton's 2nd Law.
- When θ is so large, than the block moves downward along the incline, the friction force can be expressed as follows:
- The normal force, adopts the value needed to prevent any vertical movement through the surface of the incline:
- In equilibrium, both forces, as defined in (1), (2) and (3) must be equal in magnitude, as follows:
- As the block is moving, if the net force is 0, according to Newton's 2nd Law, the block must be moving at constant speed.
- In this condition, the friction coefficient is the kinetic one (μk), which can be calculated as follows:
Static current is an imbalance of electric charges within or on the surface of a material,however electric current is electric charge on motion.
Answer : the first product for carbon dioxide is C2CNT. Product: Carbon nanotubes, carbon fiber. the second product for hydrogen is fertilizer. a product for oxygen is water. the reactants of carbon dioxide is carbon dioxide (CO2), water (H2O), and usable energy. the reactants of hydrogen is Both hydrogen and oxygen gases exist as diatomic (“two-atom”) molecules. the reactants of oxygen is oxygen gas and the 2 in front of the water vapor are called the reaction coefficients.
Explanation: your welcome everyone!
FALSE................................................................