Answer:
5.43 x 10^-3 Nm
Explanation:
N = 52.5, radius, r = 5.35 cm = 0.0535 m, B = 0.455 T, I = 25.3 mA = 0.0253 A
Torque = N I A B Sin theta
Here, theta = 90 degree
Torque = 52.5 x 0.0253 x 3.14 x 0.0535 x 0.0535 x 0.455
Torque = 5.43 x 10^-3 Nm
Answer: It is our need for company that urges us to make friends. So we make friends for companionship.
<u>Explanation:</u>
The kind of reward that we want from friendship is companionship.
- We make friends for a company. It is our need for a company that urges us to make friends.
- We enjoy when we have a friend. Life becomes relaxed.
- Our friend is our companion so we can easily share our problems with him or her.
The positive way that we can get this reward of companionship is
- Man is a social animal. He needs a company to live, otherwise, he cannot survive. So companionship satisfies our social needs.
- Human beings are emotional too. They need to share their feelings. So they can share it with their companion. We are emotionally satisfied.
Refer to the diagram shown below.
Still-water speed = 9.5 m/s
River speed = 3.75 m/s down stream.
The velocity of the swimmer relative to the bank is the vector sum of his still-water speed and the speed of the river.
The velocity relative to the bank is
V = √(9.5² + 3.75²) = 10.21 m/s
The downstream angle is
θ = tan⁻¹ 3.75/9.5 = 21.5°
Answer: 10.2 m/s at 21.5° downstream.
The answer is C. Infrared Rays.
<span>Yes, the law of conservation of momentum is satisfied. The total momentum before the collision is 1.5 kg • m/s and the total momentum after the collision is 1.5 kg • m/s. The momentum before and after the collision is the same.</span>