Answer:
d = 1.19 m
Explanation:
Given that,
The force applied by the ball, F = 39.6 N
The work done on the catchers glove is 47.5 J
We need to find the distance traveled by the ball. We know that,
Work done, W = Fd
Where
d is the distance traveled
So, it will cover 1.19 m.
They determine if it has a negative or positive charge
Answer:
Voltage will be 100 volt
Explanation:
We have given current through the circuit i = 0.1 A
Power dissipated P = 10 W
We know that power dissipated through any resistive cirvuit is given by
, here i is current and R is resistance
So 
R =1000 ohm
Now according to ohm's law V = iR
So Voltage V = 0.1×1000 = 100 volt
Answer:
E) d_{2} = 4d_{_{1}}
Explanation:
We know that the range of a projectile is given by:
where:
u = initial velocity of the projectile
angle of projection of projectile
<u>Now, range for ball 1 :</u>
<u>Now, range for ball 2 with double velocity and all the other parameters being the same:</u>
The correct answer to the question is direct current i.e a battery produces direct current which is the current that flows in only one direction.
EXPLANATION:
Before coming into any conclusion, first we have to understand the types of current. There are generally two types of current which are known as direct current and alternating current.
Direct current:
A direct current is the current which moves in one direction only. It may be a steady current or a pulsating direct current.
A steady current is a time independent current i.e its magnitude is constant with time. It is also known as a stationary current. For instance, the current flowing through a battery.
A pulsating dc current is a type of dc current in which the magnitude of the current changes with time, but moves in one direction. For instance, the current produced in a junction diode rectifier.
Alternating current: Alternating current is the type of fluctuating current whose magnitude changes continuously and direction changes periodically.
In the given question, the current produced in a battery is flowing in one direction only.
Hence, the correct answer to the question will be direct current.
