Answer:
the required speed/velocity of the stunt double is 13.633 km/h
Explanation:
Given the data in the question;
velocity of train V = 150 km/h
distance = length of train + distance between the tunnel and the end
= 2 km + 20 km = 22 km
first we calculate time t taken by the train to reach the tunnel;
t = distance / velocity
we substitute
t = 22 km / 250 km/h
t = 0.1467 hr
so the velocity of the of the stunt double will be;
velocity = distance / time
we substitute
velocity = 2 km / 0.1467 hr
velocity = 13.633 km/h
Therefore, the required speed/velocity of the stunt double is 13.633 km/h
Answer:
Inverse
Explanation:
The force of gravity between two objects follows an <u>inverse</u> square law with regard to the distance between them.
<em>The inverse square law refers to any law that stipulates that a particular quantity varies inversely to the square of the distance to its source and according to the law of universal gravitation, the gravitational force of attraction between two objects is </em><em>inversely proportional to the square of the distance separating the two objects. </em>
Hence, the law of universal gravitation obeys the inverse square law.
Answer:
Electric force, 
Explanation:
It is given that,
Magnitude of electric field, 
Charge, 
The electric field is directed parallel to the positive y axis. We need to find the force on the charge particle. It is given by :
So, the electric force on the charge is 
. Hence, this is the required solution.
Answer:
Bb
Explanation:
If the fish is brown, it had the dominant genotype.
Conductivity would be the property.
