Objects absorb and reflect light differently depending on their physical characteristics, such as their shape or composition. Thanks to the reflection we can see the objects. Reflection can be defined as the change of direction of a wave, which, when in contact with the separation surface between two changing means, returns to the point where it originated. When the light illuminates the object, such as the tree, the rays of light will disperse in all directions allowing observation.
The correct answer is A. From every point on the surface of the tree, and in every direction
Elevation would be showing you what height you are at, energy would be like what force your putting into the object.
Answer:
A) True. Voltmeters measure voltages
C) True. They are placed in parallel
E) True ammeters are used to measure current
Explanation:
The devices for voltage measurement are the voltmeter and ammeter
Voltmeters have very high intense resistance and are placed in parallel
The ammeters have very small resist and are placed in series
Based on this establishment, let's analyze the statements
A) True. Voltmeters measure voltages
B) False has high intense resistance
C) True. They are placed in parallel
D) False ammeters are placed in series
E) True ammeters are used to measure current
F) False ammeters have a low internal resistance
Answer:
D. the linear velocity of the point of contact (relative to the inclined surface) is zero
Explanation:
The force of friction emerges only when there is relative velocity between two objects . In case of perfect rolling , there is no sliding so relative velocity between the surface and the point of contact is zero . In other words the velocity of point of contact becomes zero , even though , the whole body is in linear motion . It happens due point of contact having two velocities which are equal and opposite . One of the velocity is in forward direction and the other velocity which is due to rotation is in backward direction . So net velocity of point of contact becomes zero . Due to absence of sliding , displacement due to friction becomes zero . Hence work done by friction becomes zero.