Every object that has mass attracts every other object with a gravitational force. It has been proven that the size of the gravi
2 answers:
Explanation:
The gravitational force increases as the mass of the object increases and it rapidly decreases as the distance between the objects increases. This statement is best classified as the law of universal gravitation.
Two objects having mass attracts every other object with a gravitational force. It is given by :
..........(1)
From equation (1), it is clear that the force is directly proportional to the product of masses and inversely proportional to the distance between them. It is "universal law of gravitation".
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Answer:
B=1.04*10^{-4}T
Explanation:
An infinite wire produces a magnetic field that can be computed with the formula:
where m0 is the magnetic permeability of vacuum (4pi*10^{-7}Tm/A), I is the current of the wire (2.50A) and r is the perpendicular distance to the wire in which B is calculated (3cm=3*10^{-2}m). By replacing we obtain:
hope this helps!!
Answer:
The second snowball hits the ground with a kinetic energy of 100 Joules
Explanation:
Given that,
From the edge of a roof you throw a snowball downward that strikes the ground with 100 J of kinetic energy. It is a case of conservation of energy.
At the highest point,
At lowest point,
From above two equation, we get :
Kinetic energy, K = 100 J
So, the second snowball hits the ground with a kinetic energy of 100 Joules. So, the correct option is (A).