When the speed of the bottle is 4 m/s, the KE is _____ kg m2/s2.
When the speed of the bottle is 5 m/s, the KE is _____ kg m2/s2.
When the speed of the bottle is 6 m/s, the KE is _____ kg m2/s2.
(it dident have the subject so i just picked something that deals with science)
Answer:
umm C i think
Explanation:
16 km north.
11 km west.
6km south.
2 km south
Answer:
The displacement = 2 km south.
Explanation:
Given:
Displacement vectors.
Total displacement :Displacement is the shortest distance from the initial point of any vector.
We have to work this in a Cartesian co-ordinate where we have y axis as North and South (negative y-axis).
Lets move 4 km towards south that is 4 units on negative y-axis.
The points will be .
Now move 2 km upward (towards north) that is toward positive y-axis.
So the points are .
From here again 5 km downward (towards south).
Points of the co-ordinates are .
Finally move 5 km upwards (towards north).
Points of the Cartesian are .
So (0,-2) means that the displacement vector is toward south and is 2 km way from the origin that is .
Total displacement is of 2 km in south.
Answer:
All wind is caused by the uneven heating of Earth's surface, which sets convection currents in motion. Convection currents on a large scale cause global winds; convection currents on a small scale cause local winds.
Explanation:
B.This is true because weight is the amount of matter in an object. Because gravity is a force, and force is proportional to weight, both gravity and weight vary in different places in the universe.
C. This is true because gravitational force is the magnitude of weight acting on an object and since weight varies in different places in the universe, gravitational force also varies.
D. This is true because weight is the magnitude of gravitational force acting on an object, and since gravitational force varies in different places in the universe, weight also varies.
Explanation :
We know that the weight of an object is given by :
Where,
m is the mass
g is the acceleration due to gravity.
The value of g changes from one location to another.
An object's weight is dependent upon its location in the universe. This statement is true. This is because g varies in different places so the weight also varies.
Hence, the correct option is (D) " This is true because weight is the magnitude of gravitational force acting on an object, and since gravitational force varies in different places in the universe, weight also varies ".