I’m confused but I will answer that small snippet of a question, and it is that nobody knows how many black holes are in space but scientist have estimated that there are 10 million to a billion black holes
Use the formula f=ma
You’re solving for a so a=f/m
421N/530kg and you get
.7943m/s^2
0.75 km = (0.75×100000) cm = 75000 cm
The scientific notation to find this is ---
Kilo-Hecto-Deca-Meter-Deci-Centi-Milli
Answer:
The minimum coefficient of static friction between the road and the car's tires is 0.816
Option "C"
Explanation:
Given;
velocity of the car, v = 40.0 m/s
radius of horizontal curve, r = 200 m
For a minimum coefficient of static friction between the road and the car's tires that will allow the car to travel at the given speed without sliding, centripetal force must equal frictional force.
where;
μ is the minimum coefficient of static friction
Thus, the minimum coefficient of static friction between the road and the car's tires is 0.816
Option "C"
In the formation of mountain ranges and all other landforms, there is always a cycle involved. As one mountain comes up, another land gets pushed down into the hot mantle, where the rock will melt. Due to convection currents, the tectonic plates move and their boundaries cause them to interact with each other. As mountain ranges are formed, other land gets pushed up forming what we know are mountains, with rising magma from other parts of the world solidifying creating new rock to fill the empty space.