You can drive a car with it
Assuming that the collision is inelastic that is they are stuck together after the collision, momentum is conserved. We can determine the final velocity of the final mass as follows:
m1v1 + m2v2 = m3v3
100(4) + (200)(-3) = (300)v3
v3 = -0.6667 m/s
Therefore, the final mass moves at 0.6667 m/s to the left.
Options:
a) 10 m/s²
b) 8 m/s²
c) 4.4 m/s²
d) More information is needed
Answer:
d) More information is needed
Explanation:
The acceleration due to gravity at an altitude h above the surface of a planet is given by the equation:
.................(1)
where the altitude above the surface of the planet X, h = 3000 km
Acceleration due to gravity at the surface of the planet, g₀ = 10 m/s²
To be able to get the acceleration due to gravity, g, at an altitude h above the surface of the planet, all parameters must be substituted into equation (1).
Unfortunately, the radius, R, of the planet, X, is not given. This means that there are no sufficient parameters(information) to find the acceleration due to gravity at an altitude h above the surface of the planet.
<span>Since a frictional force is created between the hand and the knob of the door, which led to opening the door. If there is no friction between the hand and the door, then we can’t open the door. It can be proved by applying some lotion on hands and then trying to open the door by turning the knob. The friction will be less in this case and it will not be possible to open the door.</span>
Answer:
Pam
Explanation:
Pam is correct because energy is never created neither destroyed. Energy doesn't disappear, it simply is transformed into something else. In this case, some energy was transformed into sound and heat, because of that there isnt enough kinetic energy for the roller coaster to have another hill as high as the first one.