F = 10 N
d = 20 m
θ = 0°
W = F (dot product) D = F * D * cos(angle between them)
W = FDcosθ
W = 10 * 20 * cos0 = 200 J
Answer: 8.33m/s²
Explanation:
Mass of the airplane pilot = 80kg
The speed of plane v = 180km/h = 50m/s
The radius of circle r = 300 m
The acceleration of the plane will be calculated as:
a = v²/r
a = 50²/300
a = 2500/300
a = 8.33m/s²
Note that 180km/h was converted to m/s by
= (180 × 1000)/(60 × 60)
= 180000/3600
= 50m/s
1000 meters = 1 kilometer
60 minutes = 1 hour
60 seconds = 1 minute
3600 seconds = 1 hour
Answer:
Explained
Explanation:
The most dense planet in our solar system is Earth. Earth is most dense planet because
- Earth is made of dense material like rocks, core is made of metals, soil and water. The average density of earth is 5.5 gram/cm^3.
- The overall mass of Earth is higher than those of other rocky planets. This heaviness accounts for higher density of earth.
The least dense planet of the solar system is Saturn because Saturn is mostly made of gases and its size is smaller than the Jupiter. Jupiter has more gravity hence its density is higher to Saturn. Moreover, Uranus and Neptune are ice giants. Although they are also made of gases but due their distance from sun most of these gases have solidified. Hence making them more dense than Saturn and Jupiter.