Mass and weight are different. Mass is the measurement of how much matter an object has, while weight deals with the pull of gravity. For example, an astronaut floating in space is weightless, due to the limited influence of gravity. But he will still have mass, that is because mass and weight are different :)
Answer:
Option 3 and 6
Explanation:
If the particle is under the action of only one external force, both its kinetic energy and the velocity must vary.
When the particle is exerted by an external force, then this external force tends to accelerate the particle.
When the particle accelerates, its velocity must vary for that acceleration to occur.
When the velocity of the particle changes then its Kinetic energy must vary with the velocity of the particle.
Answer:
plz mark brainliest again lol :)
Explanation:
When you drop a ball from a greater height, it has more kinetic energy just before it hits the floor and stores more energy during the bounce—it dents farther as it comes to a stop.
Complete Question
The diagram for this question is shown on the first uploaded image
Answer:
a
The lens to be used is a positive converging lens with focal length of f = 33.33 cm
b
The lens to be used is a positive converging lens with focal length of f = 27.3 cm
Explanation:
a
From the question and the diagram we are told that
The image distance is in front of the eye
The object distance is
According to the Lens formula the focal length of the lens to be used to correct the hyperopic eye is
Since the focal length is positive it means that the lens to use is a positive
converging lens
b
From the question we are told
The image distance is in front of the eye
The object distance is
According to the Lens formula the focal length of the lens to be used to correct the hyperopic eye is
Since the focal length is positive it means that the lens to use is a converging lens
Answer:
The gravitational force is much larger than the electrical force for any distance between the particles.
Explanation: