Jose wandered for 2 hour with speed at 2 kilometers per hour.
The speed of an item, which is a scalar quantity in everyday usage and kinematics, is the size of the change in that object's position over time or the size of the change in that object's position per unit of time.
The instantaneous speed is the upper limit of the average speed as the duration of the time interval approaches zero. The average speed of an item in a period of time is equal to the distance travelled by the object divided by the duration of the period.
Given parameters:
Distancetravelled by Jose = 4 kilometer.
Speed of Jose = 2 kilometers per hour.
Now from definition of speed:
Total time taken = Distance travelled by Jose ÷ Speed of Jose
= 4 kilometer ÷ 2 kilometers per hour.
= 2 hour.
Hence, Jose wandered for 2 hour.
Learn more about speed here:
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1. A teacher challenges.students to study moon phases to determine if what they have learned from the textbook is accurate. How might a student investigate claims made in a textbook that moo. phases occur in a 28-day cycle?
A. observe the phase of the moon each night until a full moon can be seen.
B. Compare the textbook phases to the actual moon phases seen in the night sky each night in 28 days periods over a three month time frame.
C. Compare diagrams of moon phases from the textbook to diagrams of moon phases on-line
D. Observe the moon phases seen in the night sky as often as possible over a six month period.
2. What causes the apperance of the moon change overtime?
A. The orbit of the Earth around the Moon and its distance from the sun.
B.The Moons position relative to the sun and earth as it revolves around sun.
C. the rotation of the moon on its axis
D. The distance of the moon to the sun
thank you
the answer is A because its in 1.18 i took it
The wave changes direction as it changes its speed. _______
The wave changes direction at an angle equal to the angle of incidence. ________
diffraction
reflection
refraction
PLEASE HELP!!
Answer:
Here is the answer.
Explanation:
The answers are:
1. Diffraction
2. Refraction
3. Reflection
Hope this helps!
T or F