The object falling near the Earth's surface is rarely under free fall because of the air resistance experienced by the body.
Explanation:
According to the Newton's law of gravitation, each and every body applies an attractive force on another body kept at a particular distance. This force experienced by the body is directly proportional to the product of the masses of the body and inversely proportional to the square of distance between them.
The Earth also pulls the body towards it by the action of the attractive gravitational force. When a body falls towards the Earth under the action of the gravitational force, it moves with an acceleration. The acceleration of the body when it falls freely under the action of gravity is termed as the free fall.
The earth's atmosphere plays a significant role in the motion of the object as it falls under the gravity. The air resistance experienced by the object reduces the acceleration of the object and therefore, the object is no longer under the free fall.
Thus, The object falling near the Earth's surface is rarely under free fall because of the air resistance experienced by the body.
Learn More:
1. A 30kg block being pulled across a carpeted floor brainly.com/question/7031524
2. Net force acting on a 200kg refrigerator brainly.com/question/7031524
3. Max and Maya are riding on a merry-go-round brainly.com/question/8444623
Answer Details:
Grade: High School
Subject: Physics
Chapter: Acceleration
Keywords:
object, acceleration, gravitation, rarely, free, fall, gravitation, newton's, air, resistance, atmosphere, object.
Answer:
776
Explanation:
A trough with an amplitude of 1 will form.
A crest with an amplitude of 9 will form.
A trough with an amplitude of 9 will form.
Answer: A crest with an amplitude of 9 will form.
Explanation:
From super position principle, we know that when two waves move in same medium meet, then the net amplitude of the super imposed waves is sum of amplitudes of individual waves.
A constructive superposition takes place when crest meets crest and crest is formed of higher amplitude or trough meets trough and forms trough of higher amplitude. A destructive superposition takes place when crest of one meets trough of other -a crest or trough can form depending on the larger amplitude of either.
In the given situation, crest of wave X meets crest of wave Y. The amplitude of the super imposed wave would be = 5 + 4 = 9 and a crest would form.
Answer:
C. The facial feedback theory
Explanation:
The facial feedback theory as postulated by William James and connects back to the famous Charles Darwin talks about how facial expressions stimulate our emotional state of being. Based on this theory, the emotional experiences we have are determined by the looks on our faces.
According to the question, smiling at an event makes you enjoy it is an example of what the The facial feedback theory is explaining. Furthermore, smiling, which is a facial expression causes or stimulates an emotional state of enjoyment in that event.
A snail can move approximately 0.30 meters per minute then it would cover 4.5 meters in 15 minutes.
The total distance covered by any object per unit of time is known as speed. It depends only on the magnitude of the moving object. The unit of speed is a meter/second. The generally considered unit for speed is a meter per second.
As given in the problem a snail can move approximately 0.30 meters per minute and we have to calculate the distance covered in 15 minutes.
speed of the snail = 0.30 meters per minute
time = 15 minutes
distance covered by the snail = speed ×time
distance covered by the snail = 0.30 ×15
distance covered by the snail = 4.5 meters
Thus, the distance covered by the snail in the 15 minutes would be 4.5 meters.
Learn more about speed from here,refer to the link ;
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walk on the moon
orbit the earth
do a spacewalk
Answer: orbit the earth
Explanation:
In 1962, with three orbits around the Earth, John Glenn is the first American Astronaut to do so.
John Glen was selected in NASA in 1959. He flew Friendship 7 mission on 20th February, 1962. He was the first American to orbit the Earth. He took three rounds about the Earth.
Answer: Projectiles travel with a parabolic trajectory due to the influence of gravity. There are no horizontal forces acting upon projectiles and thus no horizontal acceleration, The horizontal velocity of a projectile is constant (a never changing in value.
Explanation: I hoped that helped yall !!