Answer:
Explanation:
acceleration of an object on an inclined plane due to gravitational pull
= g sinθ . This acceleration is irrespective of mass of the object coming down . It only depends on the inclination .
If θ is larger , sinθ will be larger hence gravitational acceleration on inclined surface will be greater . It happens so because a component of weight mg is acting on the body . This component is mgsinθ . The other component mgcosθ acts perpendicular to surface hence it does not contribute to its acceleration .
acceleration produced = force / mass
= mgsinθ / m
= gsinθ .
in the given case , the inclination of plane with mass m₁ is less , hence its downward acceleration will be lesser as compared with the acceleration of m₂ which is put on a surface with greater inclination .
Answer:
False, Sunspots appear dark (in visible light) due to their low temperature(cooler) than rest of the sun
Explanation:
Sunspots appear dark because they are much cooler( have low temperature than the rest of the surface contained by Sun. As they appear dark, but still they have very temperature that's why so hot. Sunspots have temperatures ranges 3,500 Celsius (3773 kelvin) and the surrounding surface of the sun has a temperature much higher of about 5,500 Celsius(5773 Kelvin). Even if we see a sunspot alone in space, it will glow so brightly.
Learn more about sunspots :
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There isnt enough information to answer the question, the missing variable is "distance from said falling spot and ground"
Answer:
Solution
Explanation:
A solution is a mixture composed of solute which are dissolved in a solvent which may or may not contain water.
They are homogeneous mixtures in which the solute particles are evenly distributed uniformly in the solvent.
- The solute is usually the substance dissolved.
- It is usually present in a smaller amount compared to the solvent.
- The dispersing medium is the solvent.
- It allows for the solute to go into solution.
- A solution in which the solvent is water is called an aqueous solution.
- Their particles do not settle on standing.
- They are usually clear and may have color.
Answer: C) 48 N forward
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Explanation:
Subtract the two forces, since they are working opposite one another.
79-31 = 48
The net force is 48 newtons forward. The truck is moving forward since the engine's force (79 N) is larger than the force of friction (31 N).
The force of friction cannot exceed the engine's force because friction only slows down an object, and does not push the object backward. In other words, if the object was stationary, then the ground isn't pushing the object backwards assuming you're on a level flat ground.