Answer:
0.91 g/cm³
Explanation:
Density: This can be defined as the ratio of mass of an object to its volume.
The mathematical expression for density is given as,
D = m/v .............................. Equation 1
Where D = Density of the ice cube, m = mass of the ice cube, v = volume of the ice cube.
v = l³
Where l = length of each side of the cube.
l = 1.38 in = (1.38×2.54) cm = 3.51 cm
v = 3.51³
v = 43.24 cm³
Given: m = 1.39 oz = (1.39×28.35) g = 39.41 g
Substitute into equation 1
D = 39.41/43.24
D = 0.91 g/cm³
Hence the density of the ice cube = 0.91 g/cm³
Thanks answer to the question is b
The watch hand covers an angular displacement of 2π radians in 60 seconds.
ω = 2π/60
ω = 0.1 rad/s
v = ωr
v = 0.1 x 0.08
v = 8 x 10⁻³ m/s
Answer:
b
Explanation:
basic knowledge on properties of different forms of matter
Answer:
Things that have the same charge push each other away (they repel each other). This is called the Law of Charges. … Things that have more electrons than protons are negatively charged, while things with fewer electrons than protons are positively charged. Things with the same charge repel each other.
Explanation:
