Explanation:
Gravity is the force of attraction between two objects. It depends upon the mass of the objects and the distance between the objects. Mathematically, the force of gravity is given by :
Where
G is the universal gravitational constant
are masses
d is the distance between two masses
So, statement (2) describes gravity "Gravity is the force of attraction between two objects; it is dependent upon the mass of the objects and the distance between the objects".
Answer:
a few of the positive particles aimed at a gold foil seemed to bounce back.
Answer:
Explanation:
<h3>a and b</h3>
We can use the following formula, from kinematics:
where is the final speed, is the initial speed, a is the acceleration and d the distance traveled.
Knowing that the final speed is zero, and the initial speed is
we obtain
Now, knowing that
then
<h3>c</h3>
We can use the following formula
so
<h3>d</h3>
Jennifer is able to drag her brother out of the zoo due to an applied net force of 15 N.
<h3>What is force?</h3>
Force refers to any agent which tends to cause a change in the motion or state of an object.
Forces are of two types;
- contact forces, and
- Non-contact forces
The net force is the difference between two forces which causes a change in the motion of an object.
The net force that Jennifer applies = 35 N - 20 N = 15 N
Therefore, Jennifer is able to drag her brother out of the zoo due to an applied net force of 15 N.
Learn more about Net force at: brainly.com/question/141439
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Answer:
R = 0.6 ohms
Explanation:
We have,
Voltage of the circuit is 12 V
Current flowing in the circuit is 20 A
It is required to find the resistance of the circuit. Ohm'slaw gives the relationship between voltage, current and resistance. It is given by :
R = resistance
so, the resistance of the circuit is 0.6 ohms.