operation is
(1) 5.67 × 10^5 J (3) 1.05 × 10^1 J
(2) 9.45 × 10^3 J (4) 1.75 × 10^1 J
The amount of electrical energy used by the television is given by:
where P is the power of the device and t is the time.
The power of the television is P=315 W, while the total time is
If we substitute these numbers into the formula, we find the energy:
so, the correct answer is
(1) 5.67 × 10^5 J
positive
negative
neutral
unknown
Note that rubidium has 48 neutrons.
Compare the number of protons in cesium (Ce) and xenon (Xe).
Count the number of neutrons in an atom of helium.
Comparing the reactivities of lithium (Li) and krypton (Kr) will best disprove this student's idea.
This is defined as a subatomic particle which has a positive charge present in it.
To disprove the claims of the student that you need more protons to have more reactivity, option A was chosen because Krypton has more protons than Lithium, but it is less reactive because it is a noble gas.
Read more about Protons here brainly.com/question/14790671
#SPJ5
The catcher experiences more force in her glove during a softball game than the outfielder during a softball game.
The definition of force in physics is: The push or pull on a massed object changes its velocity. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. A spring balance can be used to calculate the Force. The Newton is the SI unit of force.
Given that: the equation of motion is: FΔT=mΔv
Hence, Force = mass × change in velocity/time interval.
Now, during a softball game, the ball is in air more for the outfielder than the catcher. Hence, from the given equation, the catcher experiences more force in her glove during a softball game than the outfielder.
Learn more about force here:
#SPJ3
Rich
duPont Manual Highschool
Proffit
True or false