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April 20, 2014

Search: phsc

Number of results: 20

PHSC
Which part of a wave relates to its energy ?
Thursday, July 5, 2012 at 7:17pm by brandy

PHSC
Explain how you could move an object and still do no work.
Tuesday, June 26, 2012 at 11:25am by brandy

PHSC
As the wavelength of a wave in a uniform medium increases, its speed will ?
Thursday, July 5, 2012 at 7:19pm by brandy

PHSC
Please learn to follow directions and type your school Subject in the appropriate box.
Thursday, July 5, 2012 at 7:19pm by Ms. Sue

phsc
Since momentum in each case is the same, the damage will be identical. Both the options are equally bad.
Tuesday, June 26, 2012 at 1:39am by ajayb

phsc
I wonder how you are standing on a totally frictionless surface, much less how you would throw something, or swing a hockey stick.
Sunday, June 24, 2012 at 6:30pm by bobpursley

PHSC
Four times as far, 60 m. The mass does not matter. The kinetic energy was increased by a factor of 4. The skidding friction force stays the same.
Wednesday, July 20, 2011 at 2:51pm by drwls

phsc
Haha, it's all hypothetical. We're supposed to be playing hockey on a totally frictionless ice rink! I think crutches with sharp ends would help.
Sunday, June 24, 2012 at 6:30pm by MathMate

phsc
Suppose you are playing ice hockey in the middle of a totally frictionless frozen pond.How can you move youself to the edge of the pond ?
Sunday, June 24, 2012 at 6:30pm by brandy

phsc
No, because their velocity is NOT identical. The velocities are identical only when direction AND magnitude are identical.
Tuesday, June 26, 2012 at 1:35am by Henry

PHSC
In a simulation on earth,an astronaut in his space suit climbs up a vertical ladder.On the moon,the same astronaut makes the same climb.In which case does the gravitational potential energy of the astronaut change by a greater amount?
Tuesday, June 26, 2012 at 11:33am by brandy

phsc
If the external force on the satellite is zero, the linear momentum will be conserved. This would be the case for a satellite out in the space where the gravitational pull of earth is nearly zero. In such a situation the fragments will fly off in all the directions obeying the...
Tuesday, June 26, 2012 at 1:49am by ajayb

phsc
You have a choice,you may get hit head-on by either an adult moving slowly on a bicycle or by a child that is moving twice as fast on a bicycle.The mass of the child is-one-half that of the adult on the bicycle.Which collision do you prefer ?
Tuesday, June 26, 2012 at 1:39am by brandy

phsc
If it is totally frictionless, you only need to throw the hockey stick to one side and wait for yourself to move slowly to the other side. This will happen by the law of conservation of momentum, and Newton's first law (continues to move in a uniform velocity without external...
Sunday, June 24, 2012 at 6:30pm by MathMate

phsc
When you are driving a golf ball,a good follow-through helps to increase the distance of the drive. A good follow-through means that the club head is kept incontact with the ball as long as possible.Why does this technique allow you to hit the ball farther ?
Tuesday, June 26, 2012 at 1:44am by brandy

PHSC
Explain the difference between the everyday use of the word "work" and the physical (physics related)use of the word "work".How is energy related to work?
Tuesday, June 26, 2012 at 11:28am by brandy

PHSC
Hello, i need help. This is Work-Energy Theorum A car moving at 50km/hr skids 15m with locked brakes. How far will the car skid (with locked brakes if the car moves at 100km/hr assume that the mass of the car is 500kg
Wednesday, July 20, 2011 at 2:51pm by latrice

phsc
Two identical cars have the same speef one traveling east and one traveling west.Do the cars have the same momentum ?
Tuesday, June 26, 2012 at 1:35am by brandy

phsc
The larger contact time means longer duration of the impulse imparted to the golf ball. (Impulse I = F*t) Largere impulse causes larger change in the momentum of the ball. And the distance covered is directly proportional to the momentum imparted.
Tuesday, June 26, 2012 at 1:44am by ajayb

phsc
A satellite explodes in outer space, far from any other body,sending thousand of pieces in all direction.How does the linear momentum of the satellite before the explosion compare with the total linear momentum of all the pieces after the explosion ?
Tuesday, June 26, 2012 at 1:49am by brandy

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