Answer:
False
Explanation:
No. The buoyant force on an object is the portion of its weight that appears to vanish
when the object is in any fluid (could be either a liquid or a gas).
If the object happens to float in a particular fluid, then the buoyant force at that moment
is equal to the object's weight.
Notice that the buoyant force on an object will be different in different fluids.
The initial angular speed of the fan will be 55.0 rad/sec. The angular speed of the fan decreases to 84.7 rad/s in 2.96 s.
<h3>What is angular acceleration?</h3>
Angular acceleration is defined as the pace of change of angular velocity with reference to time.
Given data;
Final angular speed,
Initial angular speed, 
Time period,t= 2.96 s
Angular deceleration = 47.2 rad/s²
Hence the initial angular speed of the fan will be 55.0 rad/sec.
To know more about angular acceleration refer to the link ;
brainly.com/question/408236
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Answer:
City A will have a higher temperature overall than City B (D)
Explanation:
If all factors other than elevation are the same for both cities, then City A will have a higher temperature overall than City B. This is because there are fewer air molecules at higher elevations. Fewer air molecules mean less heat is absorbed by the atmosphere, and temperatures are lower. This is why areas high in the mountains are often much cooler than areas down on the plains.
Answer:
Calcium sulphide
Explanation:
If we look at the compound, we will discover that it is an ionic compound. The compound is comprised of Ca^2+ and S^2-.
The cation Ca^2+ is the calcium ion while the anion S^2- is the sulphide ion hence the compound is rightly named calcium sulphide.
Acceleration due to gravity is different in every location, because gravity itself is different in every location.
Here are a few values of gravitational acceleration in various places:
-- Surface of Jupiter . . . 24.8 m/s²
-- Surface of Mars . . . 3.7 m/s²
-- Surface of the Sun . . . 274 m/s²
-- Surface of Earth . . . 9.8 m/s²
-- In orbit 300 miles above the Earth's surface . . . 8.5 m/s²
-- Surface of Earth's Moon . . . 1.6 m/s²
