Answer:
The other two small angles are 45° each
Explanation:
Given data in the problem:
The triangle is a right triangle
thus,
one of the angle is 90°
now,
let the other two angles be x and y
thus,
it is given that:
x = 2y - 45°
also in a triangle
sum of all the angles = 180°
thus,
x + y + 90° = 180°
or
x + y = 90°
now, substituting the value of x from the above relation between x and y, we get
2y - 45° + y = 90°
or
3y = 135°
or
y = 45°
also,
x = 2y - 45°
or
x = 2 × (45°) - 45°
or
x = 45°
hence, <u>the other two small angles are 45° each</u>
T=Vf-Vi/s
25m/s -15m/s/ 125m
10m/s /125m
=0.08s
I hope it’s correct !
Answer:
E. Some charges in the region are positive, and some are negative.
Explanation:
Electric potential is given as;

where;
W is the work done in moving a charge between two points which have a difference in potential
Q is quantity of charge in the given region
If the electric potential at a given point in the region is zero, then sum of the charges in the given region must be equal to zero. For the charges to sum to zero, some will be positive while some will be negative,.
Therefore, the correct statement in the given options is "E"
E. Some charges in the region are positive, and some are negative.
It is symbols to make it easier and to save space!
The woman on the platform is correct because it is the pace of the man moving on the train not walking.