Answer:

Explanation:
As we know that the distance moved by the car is given 300 km
first it move for 120 km with speed
v = 100 km/h
so the time taken by car to move this distance is



Now it moves next 43.0 km with speed 42 km/h
so the time taken by it is given as


now total time of journey is

time remaining to cover the last part of journey is

now the remaining distance is

so the speed of the car is given as


Science is a process that involves the collection of information and ideas supported by evidence. Pseudoscience on the other hand, is a process that involves the collection of information and ideas supported by belief or opinion.
What an object is made of and the color of light that strikes it determine the apparent color of the object. The correct option among all the options that are given in the question is the first option or option "A". I hope that this is the answer that you were looking for and it has come to your help.
Answer:
Electric field will remain same.
Explanation:
Given that
At initial condition ,charge q = +3μ C
Electric field E = 4106 N/c
As we know that
Electric field due to charge q
Now when charge is replaced by new charge q'= -3μ C
From the expression of electric field we can say that electric field will remain same from same quantity of electric charge.
So we can say that electric field will remain same.
Use Newton's second law to determine the acceleration being applied to the sled. There are three forces at work on the sled (its weight, the force normal to the ground, and friction) but two of them cancel, leaving friction as the only effective force. This vector is pointed in the opposite direction of the sled's movement, so if we take the direction of its movement to be the positive axis, we would find the acceleration due to the friction to be

Now we use the formula

to find the distance it travels. The sled comes to a rest, so
, and let's take the starting position
to be the origin. Then the distance traveled
is
