What equation?
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Answer:
Explanation:
Option C is the correct answer
Answer:
R=2.5 ohm
Explanation:
Given that :
Voltage difference = 9 V
Current ,I= 3.6 A
As we know that from Ohm's law
V= I R
V =Voltage difference
I=Current
R=Resistance of the wire
Now by putting the values in the above equation we get
9 = 3.6 R
R=2.5 ohm
Therefore the resistance of the wire will be 2.5 ohm.
A convex mirror has a radius of curvature of 30 cm. an object is placed at a distance of 30 cm in front of the mirror. compute the location of the shadows and shadow enlargement!
c. II and III only (the object has 0 acceleration and the object has constant velocity.)
Why?
Let's discard each of the given options to find the correct one(s).
<h3>
- There are no forces acting on the object:</h3>
False, if an object has a constant speed, it does not mean that there are no forces acting on it, in fact, there will be always acting forces, like frictional force, gravity force, air resistance, and others.
<h3>
- The object has a 0 acceleration:</h3>
True, in an object is moving at constant speed, it means that there is no acceleration, the speed will be the same all the time during motion.
<h3>
- The object has constant velocity:</h3>
True, <u>if an object is moving in a straight line at constant speed</u> the velocity will be also constant. The velocity of an object is referring to its speed and its direction, if the object is moving in a straight line, the direction will be the same, so, if the speed is constant, the velocity will be also constant.
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