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A student whose mass is 52kg climbs stairs from the first to the thud...
A student of mass 47.3 kg climbs up the stairs in the Physics Department, with a...
A student of mass 47.3 kg climbs up the stairs in the Physics Department, with a vertical height change 3.2 metres. What is the change in gravitational potential energy? Give your answer in Joules, to 2 significant figures
7.10. Please answer all the questions and show your work. Jane, whose mass is 50.0 kg,...
7.10. Please answer all the
questions and show your work.
Jane, whose mass is 50.0 kg, needs to swing across a river (having width D) filled with person-eating crocodiles to save Tarzan from danger. She must swing into a wind exerting constant horizontal force F vector, on a vine having length L and initially making an angle theta with the vertical (see below figure). Take D = 48.0 m, F vector = 115 N, L = 40.0 m, and theta...
1. A ball is thrown horizontally from the roof of a building 9.4m tall and lands...
1. A ball is thrown horizontally from the roof of a building 9.4m tall and lands 9.7m from the base. What was the balls initial speed? 2. You buy a plastic dart gun, and being a clever physics student you decide to do a quick calculation to find its maximum horizontal range. You shoot the gun straight up, and it takes 3.6s for the dart to land back at the barrel. What is the maximum horizontal range of your gun?...
Suppose the vertical height h that Supergirl can jump after she compresses her tendons a distance...
Suppose the vertical height h that Supergirl can jump after she compresses her tendons a distance x1 (beyond her unstretched length) is 25m. How high would she jump after she has compresses her tendons an additional 10% more than before (that is a distance 1.10x1 beyond her unstretched length)? A block of mass 3kg slides along a horizontal table with speed 10m/s. At x = 0 it hits a spring with spring constant 10N/m and begins to experience a friction...
2. A water balloon is thrown upward from a window 25 m above the ground and...
2. A water balloon is thrown upward from a window 25 m above the ground and hits the ground 2.95 s later. What's the maximum height above the window that the balloon reaches? a) 3.77 m b) 2.59 m c) 2.21 m d ) 1.82 m e) 1.17 m 400 m 3. A student who can swim with a speed of 2.5 m/s in still water wants to get to the other side of a 400 m wide river whose...
Use the worked example above to help you solve this problem. A merry-go-round modeled as a disk of mass M 7.00 x 101 kg and radius R 2.40 m is rotating in a horizontal plane about a frictionless vert...
Use the worked example above to help you solve this problem. A merry-go-round modeled as a disk of mass M 7.00 x 101 kg and radius R 2.40 m is rotating in a horizontal plane about a frictionless vertical axle (see figure). (a) After a student with mass m 86.0 kg jumps onto the merry-go-round, the system's angular speed decreases to 1.95 rad/s. If the student walks slowly from the edge toward the center, find the angular speed of the...
I need help with questions 20 and 21 can someone please solve it? ing & Assess...
I need help with questions 20 and 21 can someone please solve
it?
ing & Assess C PART A) An 18.7 Kg Block is Drag X+ https//quest.cns.utexas.edu/student/instances/show?instance courseuserassignment 38322957 Answer in units of w 1. multiplies distance. 2. multiplies effort force. 3. decreases distance. 4. makes the resistance force smaller. 020 (part 1 of 2) 10.0 points A 19.2 kg block is dragged over a rough, hor- izontal surface by a constant force of 200 N acting at an angle...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
Work out the highlighted questions (3-6) clearly and with units, please. Thanks! 4/5 a the minimum...
Work out the highlighted questions (3-6) clearly and with
units, please. Thanks!
4/5 a the minimum kinetic energy at the apping point? (C) Use conservation of energy to determine the minimum angular velocity of the block just after the collision, (d) then use conservation of angular momentum during the collision to find the initial speed of the bullet vo. (Hint: Ignore the mass of the bullet after the collision. The moment of inertia of the cube about its bottom-right edge...
7.10. Please answer all the
questions and show your work.
Jane, whose mass is 50.0 kg, needs to swing across a river (having width D) filled with person-eating crocodiles to save Tarzan from danger. She must swing into a wind exerting constant horizontal force F vector, on a vine having length L and initially making an angle theta with the vertical (see below figure). Take D = 48.0 m, F vector = 115 N, L = 40.0 m, and theta...
2. A water balloon is thrown upward from a window 25 m above the ground and hits the ground 2.95 s later. What's the maximum height above the window that the balloon reaches? a) 3.77 m b) 2.59 m c) 2.21 m d ) 1.82 m e) 1.17 m 400 m 3. A student who can swim with a speed of 2.5 m/s in still water wants to get to the other side of a 400 m wide river whose...
Use the worked example above to help you solve this problem. A merry-go-round modeled as a disk of mass M 7.00 x 101 kg and radius R 2.40 m is rotating in a horizontal plane about a frictionless vertical axle (see figure). (a) After a student with mass m 86.0 kg jumps onto the merry-go-round, the system's angular speed decreases to 1.95 rad/s. If the student walks slowly from the edge toward the center, find the angular speed of the...
I need help with questions 20 and 21 can someone please solve
it?
ing & Assess C PART A) An 18.7 Kg Block is Drag X+ https//quest.cns.utexas.edu/student/instances/show?instance courseuserassignment 38322957 Answer in units of w 1. multiplies distance. 2. multiplies effort force. 3. decreases distance. 4. makes the resistance force smaller. 020 (part 1 of 2) 10.0 points A 19.2 kg block is dragged over a rough, hor- izontal surface by a constant force of 200 N acting at an angle...
ECE Review Worksheet 1 AP Physics Mr. Marrash 1. A space traveler weighs 980 N on Earth. What will the traveler weight on another planet whose radius is 3 times that of the Earth and whose mass is also 9 times that of the Earth. Do not use any numerical values of the universal gravitational constant G, the mass of Earth, or the radius of Earth to get your answer. 2. Two skaters, a man and a woman, are standing...
Work out the highlighted questions (3-6) clearly and with
units, please. Thanks!
4/5 a the minimum kinetic energy at the apping point? (C) Use conservation of energy to determine the minimum angular velocity of the block just after the collision, (d) then use conservation of angular momentum during the collision to find the initial speed of the bullet vo. (Hint: Ignore the mass of the bullet after the collision. The moment of inertia of the cube about its bottom-right edge...
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