Linear motion (also called rectilinear motion) is a motion along a straight line, and can therefore be described mathematically using only one spatial dimension.
Answer:
Weight = 6.919 n
Buoyant force = 4.397 N
Apparent weight = 2.522 N
Explanation:
radius, r = 0.0199 m
density of platinum = 2.14 x 1064 kg/m^3
density of mercury = 1.36 x 1064 kg/m^3
Weight of sphere= volume of sphere x density of platinum x g
= 4/3 x 3.14 x (0.0199)^3 x 2.14 x 10^4 x 9.8 = 6.919 N
Buoyant force acting on sphere = Volume of sphere x density of mercury x g
= 4/3 x 3.14 x (0.0199)^3 x 1.36 x 10^4 x 9.8 = 4.397 N
Apparent weight = True weight - Buoyant force = 6.919 - 4.397 = 2.522 N
Answer:
125.66 R/s
Explanation:
First 1200 r / min = 20 r/sec
20 r/s * 2pi Radians / r = 40 pi Radians / sec = 125.66 R/s
Answer:20000m/s
Explanation:
Frequency=10khz
Frequency=10x1000
Frequency=10000hz
Wavelength=2m
Speed= frequency x wavelength
Speed=10000 x 2
Speed=20000
speed=20000m/s
