Compare the kinetic energy of a 1-kilogram ball falling down from a 14-feet high window (from...
- Compare the kinetic energy of a 1-kilogram ball falling down from a 14-feet high window (from the 2nd floor), to that of a 5.2-gram marble that falls from a 280-feet high (from the 20th floor) window? Which ball has greater impact when it hits the ground? If both balls were dropped from the 5th floor, which ball would hit the ground first?
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Compare the kinetic energy of a 1-kilogram ball falling down
from a 14-feet high window (from...
A 3.00 kg ball is dropped from the roof of a building 176.4 m high
A 3.00 kg ball is dropped from the roof of a building 176.4 m high. While the ball is falling to Earth, a horizontal wind exerts a constant force of 12.0 N on it. a.)How far from the building does the ball hit the ground? b.)How long does it take to hit the ground? c.)What is its speed when it hits the ground?
Young Jeffrey is bored, and decides to throw some things out of the window for fun....
Young Jeffrey is bored, and decides to throw some things out of the window for fun. But since he is also very curious, he decides to do so in a controlled way. Jeffrey takes a rock, his tennis ball, and one of his father\'s golf balls and sets them on the sill of an open window. Then he uses a flat board to carefully push them all out of the window at the same time. The 2nd story window is...
(3 points) A ball is dropped from a height of 14 feet and bounces. Suppose that...
(3 points) A ball is dropped from a height of 14 feet and bounces. Suppose that each bounce is 6/8 of the height of the bounce before. Thus, after the ball hits the floor for the first time, it rises to a height of 14 ) = 8.75 feet, etc. (Assume no air resistance.) A. Find an expression for the height, in feet, to which the ball rises after it hits the floor for the nth time: hm = 14(5/8^n...
(1 point) A ball is dropped from a height of 10 feet and bounces. Suppose that...
(1 point) A ball is dropped from a height of 10 feet and bounces. Suppose that each bounce is 5/8 of the height of the bounce before. Thus, after the ball hits the floor for the first time, it rises to a height of 10 ) = 6.25 feet, etc. (Assume g = 32ft/s and no air resistance.) A. Find an expression for the height, in feet, to which the ball rises after it hits the floor for the nth...
1. Bowling Ball A is dropped from a point halfway up a cliff. A second identical...
1. Bowling Ball A is dropped from a point halfway up a cliff. A second identical bowling ball, B, is dropped simultaneously from the top of the cliff. Comparing the bowling balls at the instant they reach the ground, which of the following are correct? Neglect air resistance. (A) Ball A has half the kinetic energy and takes half the time to hit the ground as Ball B. (B) Ball A has half the kinetic energy and takes one-fourth the...
Liam throws a ball horizontally with a large force at a height of 1 m from...
Liam throws a ball horizontally with a large force at a height of 1 m from the ground. At the same time, Lily drops another identical ball from the same height. Which of the two balls hits the ground first? The ball dropped by Lily Depends on the amount of force used by Liam. Neither - they both hit the ground at the same time. The ball thrown by Liam.
DL6 Physics 7A Activity 2.7 (page 1) Graphically Representing Energy Relationships A) Phenomenon: Falling Ball: Overview:...
DL6 Physics 7A Activity 2.7 (page 1) Graphically Representing Energy Relationships A) Phenomenon: Falling Ball: Overview: Restate energy conservation; practice graphing energies from rest to just before it hits ground. Assume a 1 kg ball is dropped from a height of 2 meters above the floor. ituation I: We will analyze the energies of a dropped ball at any time between when it is dropped 1) Rethinking and restating energy conservation: Our standard expression of energy conservation for this situation...
Due e height y (in feet) of a ball thrown by a child is =--x2 + 2x + 3 14 where c is the horizontal distance in feet from the point at which the ball is thrown. (a) How high is the ball when it...
Due e height y (in feet) of a ball thrown by a child is =--x2 + 2x + 3 14 where c is the horizontal distance in feet from the point at which the ball is thrown. (a) How high is the ball when it leaves the child's hand? Preview feet (b) What is the maximum height of the ball? Preview feet (c) How far from the child does the ball strike the ground? Get help: Vide Points possible: 1...
1. Falling Ball with Air Resistance (15 points) A round bal is dropped from a height for which ai...
1. Falling Ball with Air Resistance (15 points) A round bal is dropped from a height for which air resistance is not negligible by the time the ball hits the ground A. On what dimensional parameters does the ball's impact speed depend? Define al symbols and give their dimensions B. Show at least three different ways that the impact speed may be made dimensionless C. On what dimensionless parameter(s) does the dimensionless speed depend? 2. Laminar Jet Toward Plate (15...
The Green Monster, as shown below, is a wall 37 feet high in left field at...
The Green Monster, as shown below, is a wall 37 feet high in left field at Fenway Park in Boston. The wall is 310 feet from home plate down the third base line. If the batter hits the ball 4 feet above the ground, neglecting air resistance, determine the minimum speed that the bat must impart to the ball that is hit over the Green Monster. COVIDIE CVS. ELABOR The equations of motions for the baseball are x(t) = (u...
(3 points) A ball is dropped from a height of 14 feet and bounces. Suppose that each bounce is 6/8 of the height of the bounce before. Thus, after the ball hits the floor for the first time, it rises to a height of 14 ) = 8.75 feet, etc. (Assume no air resistance.) A. Find an expression for the height, in feet, to which the ball rises after it hits the floor for the nth time: hm = 14(5/8^n...
(1 point) A ball is dropped from a height of 10 feet and bounces. Suppose that each bounce is 5/8 of the height of the bounce before. Thus, after the ball hits the floor for the first time, it rises to a height of 10 ) = 6.25 feet, etc. (Assume g = 32ft/s and no air resistance.) A. Find an expression for the height, in feet, to which the ball rises after it hits the floor for the nth...
1. Bowling Ball A is dropped from a point halfway up a cliff. A second identical bowling ball, B, is dropped simultaneously from the top of the cliff. Comparing the bowling balls at the instant they reach the ground, which of the following are correct? Neglect air resistance. (A) Ball A has half the kinetic energy and takes half the time to hit the ground as Ball B. (B) Ball A has half the kinetic energy and takes one-fourth the...
Liam throws a ball horizontally with a large force at a height of 1 m from the ground. At the same time, Lily drops another identical ball from the same height. Which of the two balls hits the ground first? The ball dropped by Lily Depends on the amount of force used by Liam. Neither - they both hit the ground at the same time. The ball thrown by Liam.
DL6 Physics 7A Activity 2.7 (page 1) Graphically Representing Energy Relationships A) Phenomenon: Falling Ball: Overview: Restate energy conservation; practice graphing energies from rest to just before it hits ground. Assume a 1 kg ball is dropped from a height of 2 meters above the floor. ituation I: We will analyze the energies of a dropped ball at any time between when it is dropped 1) Rethinking and restating energy conservation: Our standard expression of energy conservation for this situation...
Due e height y (in feet) of a ball thrown by a child is =--x2 + 2x + 3 14 where c is the horizontal distance in feet from the point at which the ball is thrown. (a) How high is the ball when it leaves the child's hand? Preview feet (b) What is the maximum height of the ball? Preview feet (c) How far from the child does the ball strike the ground? Get help: Vide Points possible: 1...
1. Falling Ball with Air Resistance (15 points) A round bal is dropped from a height for which air resistance is not negligible by the time the ball hits the ground A. On what dimensional parameters does the ball's impact speed depend? Define al symbols and give their dimensions B. Show at least three different ways that the impact speed may be made dimensionless C. On what dimensionless parameter(s) does the dimensionless speed depend? 2. Laminar Jet Toward Plate (15...
The Green Monster, as shown below, is a wall 37 feet high in left field at Fenway Park in Boston. The wall is 310 feet from home plate down the third base line. If the batter hits the ball 4 feet above the ground, neglecting air resistance, determine the minimum speed that the bat must impart to the ball that is hit over the Green Monster. COVIDIE CVS. ELABOR The equations of motions for the baseball are x(t) = (u...
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