Certain point in time the total energy of a closed system

Reference no: EM13671630

At a certain point in time, the total energy of a closed system is observed to be 90 J. Which one of the following statements is TRUE?

1. Twelve hours later the energy of the system is 90J

2. Three hours later the energy of the system is 180J.

3. Some of the energy should be potential

4. Twelve hours later the energy of the system is 45J

5. All of the energy should be kinetic if the objects are moving.

Reference no: EM13671630

Questions Cloud

What is the highest height of the object : An object is thrown straight up. Two seconds later it is still going upward and at that time its speed is 10m/s. What was the initial speed of the object? What is the highest height of the object?

Two diamonds begin free fall from rest from the same height : Two diamonds begin a free fall from rest from the same height, 1.1 s apart. How long after the first diamond begins to fall will the two diamonds be 18 m apart?

Technician first measures the resistance among terminals : An underground telephone cable, consisting of a pair of wires, has suffered a short somewhere along its length (at point P in the Figure). The telephone cable is 4.00 km long, and in order to decide where the short is, a technician first measures the..

Neither volume of submarine nor the density of water change : For a submarine, identify when it will have the LEAST buoyant force acting on it. Suppose that neither the volume of the submarine nor the density of the water change.

Certain point in time the total energy of a closed system : At a certain point in time, the total energy of a closed system is observed to be 90 J. Which one of the following statements is TRUE?

Cylinder-head bolts in an automobile engine are tightened : When cylinder-head bolts in an automobile engine are tightened, the critical quantity is the torque applied to the bolts. Why is the torque more significant than the actual force applied to the wrench handle?

Describe using lorentz force equation why charged particle : Describe using the Lorentz force equation why a charged particle moving at a constant speed in a direction perpendicular to a uniform magnetic field moves in a circle.

Differences between magnetic and electric fields lines : Explain 2 similarities and 2 differences between magnetic and electric fields’ lines. (Consider such things as where they terminate and originate,, how they are related to the direction and strength of the field, whether they are closed curves or lin..

What will the volume of the can be at ambient temperature : A cold aluminium soft drink can by a capacity of 354 ml is filled to the brim with methanol at a temp of 4.0 degrees Celsius and is then allowed to reach the ambient temperature of 35.4degrees Celsius. (βAl= 75* 10 ^-6 Celsius β methanol= 1100 * ..

User Account

All Pages