Answer:0.61 m
Explanation:
Given
Initial velocity (u)=7.40 m/s
launch angle
height of fence=0.7 m
Trajectory of Projectile is given by
For x=2.1 m
At x=2.1 m Y=1.31
therefore Fox clear fence by a margin =1.31-0.7=0.61 m
Answer:
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The correct answer is option ( C ) reduced air pressure
Explanation:
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Answer:
Explanation:
A charge Q will create an electric field in the space surrounding it. The strength of an electric field, E in a location in space can be determined by placing a test charge, q in the space and measuring the force (F) which is exerted upon it. The electric field strength is then defined as the amount of force per unit of charge on the test charge.
E = F/q
The electric force, F depends upon the following as described by Coulomb's law:
F = kQq/d2
Here, Q might be the source charge and q might be the test charge. Therefore,
E = k × Q/d2