Science is the strategy to make your friends complain and die because of your low iq. True or False?

An object moves 15.0 m north and then 11.0 m south. Find both the distance traveled and the magnitude of the displacement vector

Nataliya [291]

Answer:

Distance = 26.0m Displacement = 4.0m

Explanation:

Distance specifies only how far an object has traveled while displacement is the distance traveled in a specified direction.

Total distance traveled by the object will be distance travelled through north + distance travelled through south i.e 15.0m + 11.0m = 26.0m

Displacement is gotten by using the Pythagoras theorem. Since the object traveled in the same vertical direction (15.0m through north which is upward i.e positive y direction and 11.0m through south i.e in the negative y direction), the displacement will be 15.0m - 11.0m = 4.0m

6 0

2 years ago

300kg of water are lifted 10m vertically in 5s show the work done in 30kj and that power is 6kw . Please help me

Mandarinka [93]

Answer:

6KW

Explanation:

The computation is shown below:

We know that

Work done= m ×g× h

Here

W= 300×10×10

= 30000 J

= 30 KJ

And

Power= Work done ÷time taken

P = 30000 ÷ 5

= 6000W

= 6KW

The above represent the answer

3 0

2 years ago

Which of the social sciences strikes you as closest to sociology? Most distinct? Why?

Ghella [55]

Academic psychology is the social science that I would say is closest to sociology.

It conduct research into animal behavior and physiology the brain. and even though psychology takes a broader aspect it also deals with the understanding of the thoughts and behavior of man.

8 0

2 years ago

A ball is thrown downward; and its speed is v just before it strikes the ground. After the collision with the earth, it heads up

d1i1m1o1n [39]

For this case it is necessary to consider the assessments made between collisions of 'immovable' objects. In this case the earth is the immovable object or at least, it is approached by its mass. Considering the case of an inflatable ball of mass m that travels at a speed v towards the ground, it hits the floor and bounces with speed -v (Negative). The earth does not move, however, the momentum of the ball has changed by 2mv since the speed went from positive to negative. Applying the conservation of the momentum we know that the change of the momentum on the fly would be given under the function

$p = m\Delta V$