Imagine that current is flowing couterclockwise around a squre loop of wire in front of you
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Answer: The loop's right side approaches you.
Related Questions
Eric is walking forwards at 0.5 m/s and then hears a blackbear charging from behind. He continues to move forwardand increases his speed to 10 m/s within 3 seconds. What wasEric's acceleration?0 3.2 m/sO 3.2 m/s^20 -3.2 m/s^2O 10 m/s^2O Other:
6. What makes an object float rather than sink?
1. A rifle with a longer barrel can fire bullets with a larger velocity than a rifle with a shorter barrel.
Justin is standing in the tee box and swings the golf club. As he swings, the end of the golf club gains speed and _____________. A. Chemical energy B. Kinetic energy C. Potential energys he swings,
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Answer:
More experimental.
Explanation:
A hypothesis is formulated on the basis of some observed, but unexplained behavior. It is usually preceded by an exclamation from the researcher of "What the heck? Did you see that? It went up and turned blue, when it should have gone sideways and turned red."
The observed behavior was unexpected, so the researcher wants to know why. The first place to start is with an hypothesis: an explanation of what might be happening. It must be a "testable" hypothesis - an explanation that provides an avenue for testing whether the hypothesis may contain some truth. E.g., the lab tech created sufficient momentum in the sample to make it react when he/she moved it from the table to the cabinet.
This can be tested. Just do the same experiment but control movement of the sample. If the reaction does NOT occur under the new conditions, then one might advace the observation as a theory. Ni=ot proven, but the data are consistent with the hypothesis. A theory is based on some level of experimental results, to move it up from an hypothesis.
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The velocity a stroller is pushed from rest, accelerating at 500m/s is 7.5 m/s.
To find the final velocity of the stroller after it has traveled a certain distance while accelerating, one can calculate it using the third equation of motion:
v²-u² = 2as
The third equation of motion is one of the equations used in classical physics to describe the motion of an object with constant acceleration.
Given:
Acceleration, a = 500 m/s²
Distance, s = 6.32 m
The velocity is computed as:
v² - 0² = 2 × 500 × 6.32
v² = 6320
v = 79.5 m/s
Hence, the velocity a stroller is pushed from rest, accelerating at 500m/s is 7.5 m/s.
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B. Metals tend to have a negative valence and tend to be electron borrowers.
C. Nonmetallic elements tend to have a positive valence and tend to be electron borrowers.
D. The smaller the number of electrons an atom has to borrow or to lend, the greater the activity of the atom.
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Answer: Option (D) is the correct answer.
Explanation:
According to the octet rule, in order to attain stability every atom requires to complete its octet by gaining or losing valence electrons.
The reactivity of an atom depends on the number of valence electrons. Smaller is the number of valence electrons to be gained or lose, the greater will be the activity of atom.
For example, atomic number of chlorine is 17 so, it just needs to gain one more electron to completely fill its shell. Whereas atomic number of aluminium is 13 so, it needs to lose 3 electrons in order to gain stability.
Thus, activity of chlorine atom will be more as compared to aluminium atom.
Thus, we can conclude that smaller the number of electrons an atom has to borrow or to lend, the greater the activity of the atom.
Answer: Option (D) is the correct answer.
Explanation:
Valence electrons are the electrons present in the outermost shell of an element.
For example, fluorine is a non-metal with atomic number 9. It contains 7 valence electrons and in order to attain stability it needs to gain only one electron.
Therefore, it is very reactive in nature. This also means that smaller is the electrons an atom needs to borrow or lend higher will be its reactivity.
Thus, we can conclude that the statement smaller the number of electrons an atom has to borrow or to lend, the greater the activity of the atom, accurately describes properties of valence.
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Explanation:
Acceleration is defined as change in velocity with respect to change in time.
Mathematically, Acceleration = \frac{\Delta v}{\Delta t}[/tex]
where = change in velocity
= change in time
When Islas and Hazel both has change in velocity as 30 m/s but still their acceleration is different then it means that change in time for both of them is different.
Thus, they have different acceleration.
Acceleration = (change in velocity) / (time for the change) .
They may have had the same change in velocity, but if the changes
happened in different lengths of time, then their accelerations were
not the same.