The answer would be: b. The spring constant is 20 N/m
Answer:
Explanation:
The velocity is 340, but the distance is not. Here's how you do this:
You need to find out the velocity of the that sound in that temp which has a formula of
v = 331.5 + .606T where T is the temp in Celcius. Filling in and using the correct number of sig dig:
v = 331.5 + .606(20) and
v = 331.5 + 10 and
v = 340 m/s. Now we need to use that in d = vt:
d = 340(2.00) so
d = 680 m
Answer:
The ratio of moment of inertia of larger sphere to that of smaller sphere = 4
Explanation:
The moment of inertia of solid sphere is given by I = 2/5MR² where M = mass of sphere and R = radius of sphere.
Radius of smaller sphere = D/2
Radius of larger sphere = 2D/2 = D.
Moment of inertia of smaller sphere I₁ = 2/5M × D²/4 = MD²/10
Moment of inertia of larger sphere I₂ = 2/5M × D² = 2MD²/5
The ratio of moment of inertia of larger sphere to that of smaller sphere = I₂/I₁ = 2MD²/5 ÷ MD²/10 = 10 × 2/5 = 4
Answer:
Because they would naturally dye the test strips in the colors violet and red, regardless of their pH values
(would really appreciate the brainliest)
