Answer:
25m/sec
Explanation:
Speed of car in first 15 minutes = 40 km/h
Distance covered = speed × Time taken
60 minutes = 1 hour
15 minutes =
60
15
hour
Distance covered = 240×
60
15
=10km
Speed of car in next 15 minutes = 60 km/h
Distance covered = 60×
60
15
=15km
∴ Total distance covered = (10+15)km = 25 km
You are going 600 miles per hour.
Igneous rock your welcome
Explanation:
This problem can be solved by using the equation
B = (μ0*I)/(2π*r) ( 1 )
where μ0 is the magnetic permeability, I is the current in the wire and r is the distance to the wire, where the magnetic field B is calculated. The equation (1) says that a current in a wire produce a magnetic field in a distance r from the wire.
Part A
Taking into account that μ0 = 
By replacing in the equation ( 1 ) we have:

Part B
In tis case is only necessary to calculate B/Be (Be is the magnetic field of the earth), but taking into account that tha magnetic field of the earth must be in teslas.
1 gauss = 10^(-4) T
0.50 gauss = 0.50*(10^(-4)) T = 5*10^(-5) T
Hence, the proportion between B and Be:

Thus, it is only 9% of the magnetic field of the earth.
Answer: b. The United States Constitution
Explanation:
Montesquieu argued that the best form of government, was one where the legislative arm, executive arm, and judicial powers were separate. and in doing so helped kept each other in check to prevent any branch from becoming too powerful. Montesquieu’s separation of powers was not accurate when compared the government of England, But this was later adopted by Americans as the foundation of the U.S. Constitution.