Answer:
τ ≈ 0.90 N•m
F =
Explanation:
I = ½mR² = ½(10)0.5² = 1.25 kg•m²
α = ω²/2θ = 3.0² / 4π = 0.716... rad/s²
τ = Iα = 1.25(0.716) = 0.8952... ≈ 0.90 N•m
τ = FR
Now we have the unanswered question of reference frame.
80° from what?
If it's 80° from the radial
F = τ/Rsinθ = 0.90/0.5sin80 = 1.818... ≈ 1.8 N
If it's If it's 80° from the tangential
F = τ/Rcosθ = 0.90/0.5cos80 = 10.311... ≈ 10 N
There are an infinite number of other potential solutions
Answer: depth, shade, fragrance
Explanation:
Use the formula
Heat= mass x specific heat x temperature increase
Answer:
100 g
Explanation:
Let the mass of density 1.2 g/cm³ be x gram and let the mass of density 1.8 g/cm³ be y gram
Applying
Density (D) = mass(m)/Volume (V)
Volume (V) = mass(m)/Density(D)
V = m/D........................... Equation 1
From the question,
x+y = 400...................... Equation 1
Volume of the liquidis
V = 400/1.6 = 250 cm³
(x/1.2)+(y/1.8) = 250
(1.8x/1.2)+y = 450............... Equation 1
Solving both equation simultaneously,
Subtract equation 1 from equation 2
x-(1.8x/1.2)+(y-y) = 400-450
x-1.5x = -50
-0.5x = -50
x = -50/-0.5
x = 100 g.
Hence the mass of the liquid of density 1.2 g/cm³ is 100 g
Answer:
A.
Explanation:
momentum depends on weight and speed