Answer:
The mass of the receiver is 85 kg.
Explanation:
Given:
Mass of the tackler (M) = 130 kg
Mass of the receiver = 'm' (Assume)
Initial velocity of the receiver (u) = 0 m/s
Initial velocity of the tackler (U) = 3.8 m/s
Final combined velocity (v) = 2.3 m/s
So, as per question, the momentum is conserved. Therefore, the total initial momentum is equal to the total final momentum.
Total initial momentum is given as:
Total final momentum is given as:
Now, as per momentum conservation:
Therefore, the mass of the receiver is 85 kg.
If your body did not digest enough food, you would not have the energy to exercise. Food is like fuel for the body.
Answer:
The atomic number increases by 1.
Explanation:
The beta minus decay is a process in which a neutron decays into a proton, emitting an electron and an anti-neutrino:
If this process occurs inside an unstable nucleus, we notice that:
- a neutron is converted into a proton, therefore
- the number of neutrons decreases by 1 and the number of protons increases by 1
Keep in mind that the atomic number of a nucleus corresponds to the number of protons it contains: therefore, since this number increases by 1, then the atomic number increases by 1.
The net force acting on the center O is 4.495 X 10⁹ N
<u>Explanation:</u>
Given:
Charge-
q₁ = 4C
q₂ = 3C
q₃ = -5C
q₄ = 2C
q₅ = 1C
Side of the square = 4cm
Net force acting on the center, F = ?
Length of the side of the square is 4cm
The length of the diagonal will be 4√2
The length of half diagonal = 4√2 / 2 = 2√2
Force acting on the center of the square is:
Here, k is coulomb's constant and the value is
k = 8.99 x 10⁹ N m2 / C2
On substituting the value, we get:
Therefore, the net force acting on the center O is 4.495 X 10⁹ N
For astronomical objects, the time period can be calculated using:
T² = (4π²a³)/GM
where T is time in Earth years, a is distance in Astronomical units, M is solar mass (1 for the sun)
Thus,
T² = a³
a = ∛(29.46²)
a = 0.67 AU
1 AU = 1.496 × 10⁸ Km
0.67 * 1.496 × 10⁸ Km
= 1.43 × 10⁹ Km