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9. A 0.04-kg...
13. A 0.04-kg ball is thrown from the top of a 30-m tall building (point A)...
13. A 0.04-kg ball is thrown from the top of a 30-m tall building (point A) at an unknown angle above the horizontal. As shown in the figure, the ball attains a maximum height of 10 m above the top of the building before striking the ground at point B. If air resistance is negligible, what is the value of the kinetic energy of the ball at B minus the kinetic energy of the ball at A (KB - KA)?...
Q16.A 50 g ball is launched at an unknown angle from point A from the top...
Q16.A 50 g ball is launched at an unknown angle from point A from the top of a 30m tall cliff. The ball reaches a maximum height of 10m above the top of the cliff before falling to the ground at point B Neglecting air resistance, what is the change in kinetic energy from point A to point B? A) 15 J B) 12J C) 20 D)-15J E)-12J 10 30 sa
answer is A, please explain how to get that answer 8. A solid wooden door, 90...
answer is A, please explain how to get that
answer
8. A solid wooden door, 90 cm wide by 2.0 m tall, has a mass of 35 kg. It is open and at rest. A small 500-g ball is thrown perpendicular to the door with a speed of 20 m/s and hits the door 60 cm from the hinged side, causing it to begin turning. The ball rebounds along the same line with a speed of 16.0 m/s relative to...
Q12. Consider the two vectors shown Complete along vector A is A) equal to zero. B)...
Q12. Consider the two vectors shown Complete along vector A is A) equal to zero. B) larger than B C) equal to B. D) smaller than B E) perpendicular to vector B the following statement: The component of vector B equilibrium position, spring constant, k-64 Nm. What will be the imitial speced of the ball when it release from the spring? Q13. In designing a spring loaded cannon, You launch a 1.0 kg ball by compressing a spring 0.15 m...
Explore A baseball is thrown from the top of a tall building with an initial velocity...
Explore A baseball is thrown from the top of a tall building with an initial velocity of 10 m/s from a height of h= 11.5 m above the ground. Find its speed when it reaches the ground (a) if its launch angle is 37°, and (b) if it is launched horizontally. Conceptualize As the baseball moves upward and to the right, the force of gravity accelerates it downward. The vertical component of its velocity decreases in magnitude until the baseball...
PRACTICE IT Use the worked example above to help you solve this problem A ball is...
PRACTICE IT Use the worked example above to help you solve this problem A ball is thrown upward from the top of a building at an angle of 30.0° to the horizontal and with an initial speed of 22.0 m/s. The point of release is h41.0 m above the ground (a) How long does it take for the ball to hit the ground? (b) Find the ball's speed at impact. m/s (c) Find the horizontal range of the ball
Use the worked example above to help you solve this problem. A ball is thrown upward...
Use the worked example above to help you solve this problem. A ball is thrown upward from the top of a building at an angle of 30.0° to the horizontal and with an initial speed of 21.0 m/s. The point of release is h = 49.0 m above the ground. (a) How long does it take for the ball to hit the ground? s (b) Find the ball's speed at impact. m/s (c) Find the horizontal range of the ball.
A 3.2 kg sloth hangs 3.2 m above the ground. (a) What is the gravitational potential...
A 3.2 kg sloth hangs 3.2 m above the ground. (a) What is the gravitational potential energy of the sloth-Earth system if we take the reference point y = 0 to be at the ground? J (b) Assume the sloth drops to the ground and air drag on it is negligible. What is the kinetic energy of the sloth just before it reaches the ground? J (c) What is the speed of the sloth at this time?
O c. 0.20 rad/s O d.0.78 rad/s QUESTION 2 A 8.00-kg bowling ball falls from a...
O c. 0.20 rad/s O d.0.78 rad/s QUESTION 2 A 8.00-kg bowling ball falls from a 3.50-m shelf. Just before hiting the floor, what will be its kinetic energy(g9.0s2 and ssume air resistance is negligible) O a. 280J O b. 490J c, 2.863 O d. 28.0 O e. 274J QUESTION 3 In a problem using esergy considerations so solve for the speed of a ball thrown from the top of a building when it strikes the ground beliow, where sbould...
PLEASE ANSWER STEP BY STEP A thrill-seeking cat with mass 4.00 kg is attached by a...
PLEASE ANSWER STEP BY STEP A thrill-seeking cat with mass 4.00 kg is attached by a harness to an ideal spring of negligible mass and oscillates vertically in SHM. The amplitude is 0.050 m, and at the highest point of the motion the spring has its natural unstretched length. Calculate the elastic potential energy of the spring (take it to be zero for the unstretched spring), the kinetic energy of the cat, the gravitational potential energy of the system relative...
13. A 0.04-kg ball is thrown from the top of a 30-m tall building (point A) at an unknown angle above the horizontal. As shown in the figure, the ball attains a maximum height of 10 m above the top of the building before striking the ground at point B. If air resistance is negligible, what is the value of the kinetic energy of the ball at B minus the kinetic energy of the ball at A (KB - KA)?...
Q16.A 50 g ball is launched at an unknown angle from point A from the top of a 30m tall cliff. The ball reaches a maximum height of 10m above the top of the cliff before falling to the ground at point B Neglecting air resistance, what is the change in kinetic energy from point A to point B? A) 15 J B) 12J C) 20 D)-15J E)-12J 10 30 sa
answer is A, please explain how to get that
answer
8. A solid wooden door, 90 cm wide by 2.0 m tall, has a mass of 35 kg. It is open and at rest. A small 500-g ball is thrown perpendicular to the door with a speed of 20 m/s and hits the door 60 cm from the hinged side, causing it to begin turning. The ball rebounds along the same line with a speed of 16.0 m/s relative to...
Q12. Consider the two vectors shown Complete along vector A is A) equal to zero. B) larger than B C) equal to B. D) smaller than B E) perpendicular to vector B the following statement: The component of vector B equilibrium position, spring constant, k-64 Nm. What will be the imitial speced of the ball when it release from the spring? Q13. In designing a spring loaded cannon, You launch a 1.0 kg ball by compressing a spring 0.15 m...
PRACTICE IT Use the worked example above to help you solve this problem A ball is thrown upward from the top of a building at an angle of 30.0° to the horizontal and with an initial speed of 22.0 m/s. The point of release is h41.0 m above the ground (a) How long does it take for the ball to hit the ground? (b) Find the ball's speed at impact. m/s (c) Find the horizontal range of the ball
O c. 0.20 rad/s O d.0.78 rad/s QUESTION 2 A 8.00-kg bowling ball falls from a 3.50-m shelf. Just before hiting the floor, what will be its kinetic energy(g9.0s2 and ssume air resistance is negligible) O a. 280J O b. 490J c, 2.863 O d. 28.0 O e. 274J QUESTION 3 In a problem using esergy considerations so solve for the speed of a ball thrown from the top of a building when it strikes the ground beliow, where sbould...
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