Question
In: Physics
Can a system have negative potential energy? No, because a negative potential energy is unphysical. No,...
Can a system have negative potential energy? No, because a negative potential energy is unphysical. No, because the kinetic energy of a system must be equal to its potential energy. Yes, as long as the total energy remains positive. Yes, as long as the total energy remains negative. Yes, because the choice of the zero of potential energy is arbitrary.
Solutions
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genius_generous answered 2 years agoRelated Solutions
How can the gravitational potential energy of something be negative?
How can the gravitational potential energy of something be
negative?
Because this energy is an electric potential energy, it must be associated with a force. For...
Because this energy is an electric potential energy, it
must be associated with a force. For any potential energy: F=-U. In
other words, there is a force in the direction of decreasing
potential energy. What does this mean for the dielectric as it
begins to enter the capacitor?
1) You move a negative charge relative to a positive charge, such that the potential energy...
1) You move a negative charge relative to a positive charge,
such that the potential energy between the two decreases. Gravity
should be ignored. This means you must be:
a)Bringing them closer to one another
b)Moving them apart
c)Either or
d)Cannot be determined
2) The amount of work needed to create a dipole of charge Q and
distance a is:
a) −kQ^2/a
b) kQ2/a
c) None of the above
Energy can be classified as either potential or kinetic energy. Explain how energy follows the first...
Energy can be classified as either potential or kinetic energy.
Explain how energy follows the first law of thermodynamics as it
goes from the sun to glucose. Clearly state when there is a
transition from one form to another.
Energy can be classified as either potential or kinetic energy. Explain how energy follows the first...
Energy can be classified as either potential or kinetic energy.
Explain how energy follows the first law of thermodynamics as it
goes from the sun to glucose. Clearly state when there is a
transition from one form to another.
The stock prices of energy companies have tumbled (mainly because of a collapse in energy prices)...
The stock prices of energy companies have tumbled (mainly
because of a collapse in energy prices) to lows we haven’t seen in
years. As a result the dividend yields of these companies have
skyrocketed. BP, as of today, is paying greater than a 10 percent
dividend to its shareholders. Exxon and some other major oil
companies have similar dividend yields. This can be lure to
investors because of a very low interest rate environment, a risky
stock market (at the...
What is the role of potential energy in changing a system from one state to another?
What is the role of potential energy in changing a system from
one state to another?
Why are the following statements false? The potential energy of a system of interacting particles equals...
Why are the following statements false?
The potential energy of a system of interacting particles equals
the sum of the potential energies of the individual particles.
The value of the integral ( - pdV) is fixed once the values of
the initial and final states(1 and 2) are established.
For a closed system at rest with no fields present, the sum q+w
has the same value forevery process that goes from given state 1 to
given state 2.
For a...
POTENTIAL AND KINETIC ENERGY OBJECTIVES: To determine the potential and kinetic energy of a freely falling...
POTENTIAL AND KINETIC ENERGY
OBJECTIVES:
To determine the potential and kinetic energy of a freely
falling body
To determine the loss in kinetic energy of an inelastic
collision
To calculate the percentage error of the experimental error of
the velocity of a freely falling body using the conservation of
mechanical energy of a body
MATERIALS:
Tennis balls
Digital Timer
Meter stick
THEORY:
Conservation of Mechanical Energy
A body raised to a certain height possesses potential energy
due to its position....
What is the hamiltonian of a system? (and please don’t say its teh total energy because...
What is the hamiltonian of a system? (and please don’t say its
teh total energy because its only the total energy when it’s time
independent.
What is the difference between the momonetum P and the canonical
momentum in the hamiltonian ? from a physical and mathimatical
point of view ?
when is the canonical momentum the same as the mechanical
momentum ?
please explain the connection between the canonical parameter
q and its conanical momemtum p in the hamiltonian.
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