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7) Two comets of different mass were observed entering the Earth's atmosphere and gravity at an...
6. Angular Momentum and Torque on a Meteor A meteor enters Earth's atmosphere and is observed...
6. Angular Momentum and Torque on a Meteor A meteor enters Earth's atmosphere and is observed by someone on the ground before it burns up in the atmosphere. The vector 25 m i +25 m j gives the position of the meteor with respect to observer. At the instant the observer sees the meteor, it has linear momentum p 1.5 kg -2.0) m/s 3 and it is accelerating at a constant rate of 2.0 m/s(-3) along its path, which for...
igh. Neglect air resistance. (A computer algebra system A bal with mass 0.11 kg is thrown...
igh. Neglect air resistance. (A computer algebra system A bal with mass 0.11 kg is thrown upward with iniial velocity 10 m's rom the roof o a building 40 m h to one decimal place.) is recommended. Use g9.8m/s for the acceleration due to gravity. Round your enswers (a) Find the maximum height above the ground that the ball reaches (b) Assuming that the ball misses the building on the way down, tind the time that it hits the ground.
A parachutist whose mass is 60 kg drops from a helicopter hovering 1000 m above the...
A parachutist whose mass is 60 kg drops from a helicopter hovering 1000 m above the ground and falls toward the ground under the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportionality constant b 30 N-sec/m when the chute is closed and b2 100 N-sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 15 m/sec, after...
A parachutist whose mass is 80 kg drops from a helicopter hovering 2500 m above the...
A parachutist whose mass is 80 kg drops from a helicopter hovering 2500 m above the ground and falls toward the ground under the influence of grevity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportonality constant b,-30 N secim when the chute is closed and b2 100 N sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 20 m/sec,...
Two people jump out of an airplane, one considerably heavier than the other. If air resistance...
Two people jump out of an airplane, one considerably heavier than the other. If air resistance is taken into consideration, what are the differences in both their flights down? Please explain. (MY ANSWER) If air resistance is taken into consideration, the lighter person will accelerate faster because he/she is not as heavy as the other person. On the other hand, the heavier person will reach the ground first because he/she is able to get through the air resistance faster due...
1. If a sky-diver jumps out of a plane, two forces will act on him, gravity...
1. If a sky-diver jumps out of a plane, two forces will act on him, gravity and air resistance. If we assume air resistance is proportional to the velocity, we get the total force on the sky diver will be F = −gm − kv, where g is a acceleration due to gravity on the surface of the earth, m is the mass of the sky-diver, v is the velocity of the sky-diver, and k is constant of proportionality for...
ans is C Two long, fixed, parallel, thick rails are lying in a region having uniform...
ans
is C
Two long, fixed, parallel, thick rails are lying in a region having uniform magnetic field, perpendicular to the plane of the rails. Two identical sliders of mass m and resistance Reach (initially at rest) can slide over the rails. If one of the slider is given velocity Vo, the velocity of the other slider after considerably long time will be [Neglect friction) (A) Vo (B) zero (C) vd2 (D) 1/4
1) The missing mass problem is a) starlight is observed, but there is no evidence of...
1) The missing mass problem is a) starlight is observed, but there is no evidence of mass b) the amount of mass measured is less than the amount of light measured c) starlight follows the same distribution as mass d) there are indications of mass from motion but no light e) spacetime is warped by mass 2) The rotation curve of the Galaxy is a) flat in the core, planet-like in the disk b) wheel-like in the core, flat in...
Dr. C. #1: Exploding Projectile: A projectile of mass 9.6 kg is shot from the ground with an init...
Dr. C. #1: Exploding Projectile: A projectile of mass 9.6 kg is shot from the ground with an initial velocity of 12.4 m/s at an angle of 54° above the horizontal. A. Assuming the ground underneath the projectile's path is flat, what is the maximum height h the projectile reaches, its horizontal range R, and the time it spends in the air? Suppose that, at the peak of the projectile's motion, an explosion splits the projectile in half and one...
Can anyone explains all the answers? Two balls, A and B are thrown at the same...
Can anyone explains all the answers? Two balls, A and B are thrown at the same angle above horizontal, but initial velocity of ball A is two times greater than initial velocity of ball B. Ignore air resistance. we can conclude that horizontal range covered by ball A is same as range covered by ball B twice the range covered by ball B four times the range covered by ball B. greater than horizontal range covered by ball b, but...
6. Angular Momentum and Torque on a Meteor A meteor enters Earth's atmosphere and is observed by someone on the ground before it burns up in the atmosphere. The vector 25 m i +25 m j gives the position of the meteor with respect to observer. At the instant the observer sees the meteor, it has linear momentum p 1.5 kg -2.0) m/s 3 and it is accelerating at a constant rate of 2.0 m/s(-3) along its path, which for...
igh. Neglect air resistance. (A computer algebra system A bal with mass 0.11 kg is thrown upward with iniial velocity 10 m's rom the roof o a building 40 m h to one decimal place.) is recommended. Use g9.8m/s for the acceleration due to gravity. Round your enswers (a) Find the maximum height above the ground that the ball reaches (b) Assuming that the ball misses the building on the way down, tind the time that it hits the ground.
A parachutist whose mass is 60 kg drops from a helicopter hovering 1000 m above the ground and falls toward the ground under the influence of gravity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportionality constant b 30 N-sec/m when the chute is closed and b2 100 N-sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 15 m/sec, after...
A parachutist whose mass is 80 kg drops from a helicopter hovering 2500 m above the ground and falls toward the ground under the influence of grevity. Assume that the force due to air resistance is proportional to the velocity of the parachutist, with the proportonality constant b,-30 N secim when the chute is closed and b2 100 N sec/m when the chute is open. If the chute does not open until the velocity of the parachutist reaches 20 m/sec,...
ans
is C
Two long, fixed, parallel, thick rails are lying in a region having uniform magnetic field, perpendicular to the plane of the rails. Two identical sliders of mass m and resistance Reach (initially at rest) can slide over the rails. If one of the slider is given velocity Vo, the velocity of the other slider after considerably long time will be [Neglect friction) (A) Vo (B) zero (C) vd2 (D) 1/4
Dr. C. #1: Exploding Projectile: A projectile of mass 9.6 kg is shot from the ground with an initial velocity of 12.4 m/s at an angle of 54° above the horizontal. A. Assuming the ground underneath the projectile's path is flat, what is the maximum height h the projectile reaches, its horizontal range R, and the time it spends in the air? Suppose that, at the peak of the projectile's motion, an explosion splits the projectile in half and one...
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