Answer:
r = 78.95 m
Explanation:
given,
Person Walk in east, r₁ = 45 m
Then he walk, r₂= 39 m in the direction of 40◦ North of East.
writing the total displacement in x- direction
r₁ₓ = 45 m
r₂ₓ = 39 cos 40°
r₂ₓ = 29.87 m
total displacement in x-direction
rₓ = r₁ₓ + r₂ₓ
rₓ = 45 + 29.87
rₓ = 74.87 m
displacement in y-direction
r_{1y} = 0 m
r_{2y} = 39 sin 40°
r_{2y} = 25.07 m
total displacement in y- direction
r_y = 25.07 m
using Pythagoras theorem for the magnitude calculation
r = 78.95 m
The magnitude of total displacement is equal to 78.95 m.
Answer:
Yes, they do have the same internal energy.
Explanation:
The thermal balance refers to when there is no heat transfer between the bodies and their surroundings i.e. the bodies and the environment are at the same temperature.
Suppose two bodies of different masses and different materials, each one of them is at a temperature of 25(° C), which is the same temperature as the temperature of the environment, if these two bodies are close to each other, there is also heat transfer as they are at the same temperature, in the absence of any type of energy that enter or exit in these bodies, the amount of internal energy will be equal in both bodies.
Note: when the internal energy of one of these bodies is increased, heat transfer will happen, always looking for the thermal balance.
A. supplies energy to make charge flow
Accuracy is a general concept while precision is more of a mathematical concept.
Answer:
Tge Rhododendrob is the national flower of Nepal. The hills and mountain sides ranges of Nepal are decorated with diff colours and shapes
