Answer:
The acceleration due to gravity of that planet is, gₐ = 1.25 m/s²
Explanation:
Given that,
Mass of the planet, m = 1/2M
Radius of the planet, r = 2R
Where M and R is the mass and radius of the Earth respectively.
The acceleration due to gravity of Earth, g = 10 m/s²
The acceleration due to gravity of Earth is given by the relation,
g = GM/R²
Similarly, the acceleration due to gravity of that planet is
gₐ = Gm/r²
where G is the Universal gravitational constant
On substituting the values in the above equation
gₐ = G (1/2 M)/4 R²
= GM/8R²
= 1/8 ( 10 m/s²)
= 1.25 m/s²
Hence, the acceleration due to gravity of that planet is, gₐ = 1.25 m/s²
The correct answer is :
B. the value of q is positive.
Hope this helps,
Davinia.
A heat engine would be less efficient due to many factors
For instance, a heat engine is more efficient when it uses in cold weather because there is a greater temperature difference ( Carnot Efficient )
A heat engine could be less efficient because of friction
Hope it helps I am a beginner
Answer:
340 meters
Explanation:
For this we have to use the formula of constant velocity motion:
![d=v*t\\where:\\d=distance\\v=velocity\\t=time](https://tex.z-dn.net/?f=d%3Dv%2At%5C%5Cwhere%3A%5C%5Cd%3Ddistance%5C%5Cv%3Dvelocity%5C%5Ct%3Dtime)
Because you hear the blows exactly 1 per second. And you hear only one blow after she finished, the sound takes one second to get to you.
![d=340(m/s)*(1(s))=340m](https://tex.z-dn.net/?f=d%3D340%28m%2Fs%29%2A%281%28s%29%29%3D340m)
Answer:
Yes
Explanation:
A position describes the position of an object relative to the x/y-axis (or the four cardinal directions). A velocity is a vector quantity, defining speed with direction.
So if an object is in a positive position, it means they are in the positive x-axis direction (or wherever on the scale the positive values are stated to be) and if it has a negative velocity, it means said object is moving in the opposite direction of the positive x-axis. It is possible for the object to still be in the positive position as it's moving with a negative velocity