Answer:
False
Explanation:
Let the Young's modulus of two different material is Y and Y'
Let F is the force applied, L is the initial length and A is the area of crossection.
By the formula of Young's modulus
Increase in length is inversely proportional to the Young's modulus, so more is the value of Young's modulus lesser be the extension in the length of rod.
Thus, the given statement is false.
The observation point on Earth and the two stars form a triangle. The two sides of the triangle are 23.3 ly and 34.76 ly and their included angle is 76.04°. We can use the cos rule to find the third side, which is the distance between the two stars.
c² = a² + b² - 2abCos(C)
c² = (23.3)² + (34.76)² - 2(23.3)(34.76)Cos(76.04)
c = 36.88 light years.
Answer: magnitude = 5 and angle = 160°
Explanation:
A vector has magnitude 5 and angle -20°
A vector can be written in terms of its components as :
using trigonometry identity:
sin θ = -sin ( 180 + θ )
cos θ = - cos (180 + θ)
Thus, we can write the same vector as:
Magnitude
Thus, the magnitude would be A = 5 and angle = 180+θ= 180-20 = 160°
Answer: I’m not sure but the time and distance will be increasing while they required the distance time so my answer is ((A))
Explanation:
At the speed of light wich is approx 3 x 108 meters/ second