Q1. The uniform solid block in Figure 1 has mass 0.172 kg and edge
... approximately 2000 MW. How many cubic meters of water must fall from the top of the dam per second to produce this amount of power if 50% of the work done on the water by gravity is converted to electrical energy? (Density of water is 1000 kg/m3) A) B) C) D) E) ...
... approximately 2000 MW. How many cubic meters of water must fall from the top of the dam per second to produce this amount of power if 50% of the work done on the water by gravity is converted to electrical energy? (Density of water is 1000 kg/m3) A) B) C) D) E) ...
Physics Chapter 10
... Energy, Work, and Simple Machines 10.1 Energy and Work -energy is defined as the ability to produce a change in itself or the environment -general equation for work is W = F d (has units of N m) -work is equal to a constant force exerted on an object (in the direction of motion) times the object's d ...
... Energy, Work, and Simple Machines 10.1 Energy and Work -energy is defined as the ability to produce a change in itself or the environment -general equation for work is W = F d (has units of N m) -work is equal to a constant force exerted on an object (in the direction of motion) times the object's d ...
AP free response for last week
... A stick of length 2L and negligible mass has a point mass m affixed to each end. The stick is arranged so that it pivots in a horizontal plane about a frictionless vertical axis through its center. A spring of force constant k is connected to one of the masses as shown above. The system is in equili ...
... A stick of length 2L and negligible mass has a point mass m affixed to each end. The stick is arranged so that it pivots in a horizontal plane about a frictionless vertical axis through its center. A spring of force constant k is connected to one of the masses as shown above. The system is in equili ...
1 Study Guide PS2.A: Forces and Motion Learning Target #A
... person always returns to the original position, the motion would never result in a change in position. Since velocity is defined as the rate at which the position changes, this motion results in zero velocity. If a person in motion wishes to maximize their velocity, then that person must make every ...
... person always returns to the original position, the motion would never result in a change in position. Since velocity is defined as the rate at which the position changes, this motion results in zero velocity. If a person in motion wishes to maximize their velocity, then that person must make every ...
Multiple Choice Conceptual Questions
... 2) A freight train rolls along a track with considerable momentum. If it rolls at the same speed but has twice as much mass, its momentum is (a) zero (b) doubled (c) quadrupled (d) unchanged 3) A moving object on which no forces are acting will continue to move with constant (a) acceleration (b) imp ...
... 2) A freight train rolls along a track with considerable momentum. If it rolls at the same speed but has twice as much mass, its momentum is (a) zero (b) doubled (c) quadrupled (d) unchanged 3) A moving object on which no forces are acting will continue to move with constant (a) acceleration (b) imp ...
Rotational Motion Objectives: After reviewing this section you should
... You will recall that circular motion is the motion of an object in a curved path about an external axis. This week we will explore a similar situation. Rotational motion is motion of an object in a curved path about an internal axis. The word 'angular' is used to describe motion in a circular path. ...
... You will recall that circular motion is the motion of an object in a curved path about an external axis. This week we will explore a similar situation. Rotational motion is motion of an object in a curved path about an internal axis. The word 'angular' is used to describe motion in a circular path. ...
Rotational speed
... center of gravity is A) displaced from its center. B) in the same place as its center of mass. C) stabilized by its structure. D) relatively low for such a tall building. E) above a place of support. ...
... center of gravity is A) displaced from its center. B) in the same place as its center of mass. C) stabilized by its structure. D) relatively low for such a tall building. E) above a place of support. ...
12: Forces
... Zookeepers lift a stretcher that holds a sedated lion. The total mass of the lion and stretcher is 175 kg, and the upward acceleration of the lion and stretcher is 0.657 m/s2. What force is needed to produce this acceleration of the lion and the stretcher? 1. List the given and unknown values. ...
... Zookeepers lift a stretcher that holds a sedated lion. The total mass of the lion and stretcher is 175 kg, and the upward acceleration of the lion and stretcher is 0.657 m/s2. What force is needed to produce this acceleration of the lion and the stretcher? 1. List the given and unknown values. ...
Exercises for Notes IV
... Lets identify the forces on the object: gravity acting at the center of mass, the normal force from the incline and the frictional force from the incline. (Actually the last two forces are really the one force on the object from the incline). We can break up the force of gravity, m~g , into a compo ...
... Lets identify the forces on the object: gravity acting at the center of mass, the normal force from the incline and the frictional force from the incline. (Actually the last two forces are really the one force on the object from the incline). We can break up the force of gravity, m~g , into a compo ...
Rotational Motion 3
... What about the components of L perpendicular to the axis? In general they can behave in a quite complicated way, changing with time as the body rotates. These changes must be brought about by external torques, caused by forces exerted on the body by the fixed axle about which it rotates. But if the ...
... What about the components of L perpendicular to the axis? In general they can behave in a quite complicated way, changing with time as the body rotates. These changes must be brought about by external torques, caused by forces exerted on the body by the fixed axle about which it rotates. But if the ...
VU2 Movement 2008
... It is that current which produces travels, in a vacuum, a force of 2 x 10-7 N between two in 1/299,792,458th of parallel wires which are 1 metre a second. apart in a vacuum. ...
... It is that current which produces travels, in a vacuum, a force of 2 x 10-7 N between two in 1/299,792,458th of parallel wires which are 1 metre a second. apart in a vacuum. ...
Chapter 7 Impulse and Momentum continued
... External forces – Forces exerted on the objects by agents external to the system. Net force changes the velocity (and momentum) of a mass. ...
... External forces – Forces exerted on the objects by agents external to the system. Net force changes the velocity (and momentum) of a mass. ...
Hunting oscillation
Hunting oscillation is a self-oscillation, usually unwanted, about an equilibrium. The expression came into use in the 19th century and describes how a system ""hunts"" for equilibrium. The expression is used to describe phenomena in such diverse fields as electronics, aviation, biology, and railway engineering.