Answer:
Earth's gravity comes from all its mass. All its mass makes a consolidated gravitational draw on all the mass in your body.
Explanation:
Answer:


Explanation:
The speed of sound in the air increases 0.6 m / s for every 1 ° C increase in temperature. An approximate speed can be calculated using the following empirical formula:

Where:

A more exact equation, usually referred to as adiabatic velocity of sound, is given by the following formula:

Where:

Hence:

Now, the Mach number at which an aircraft is flying can be calculated by:

Where:

Therefore:

Answer:
Coefficient of kinetic friction = 0.146
Explanation:
Given:
Mass of sled (m) = 18 kg
Horizontal force (F) = 30 N
FInal speed (v) = 2 m/s
Distance (s) = 8.5 m
Find:
Coefficient of kinetic friction.
Computation:
Initial speed (u) = 0 m/s
v² - u² = 2as
2(8.5)a = 2² - 0²
a = 0.2352 m/s²
Nweton's law of :
F (net) = ma
30N - μf = 18 (0.2352)
30 - 4.2336 = μ(mg)
25.7664 = μ(18)(9.8)
μ = 0.146
Coefficient of kinetic friction = 0.146
Calculate the minimum speed record at the point B in order for the real question to reach the top