Answer:
does work have to be done to hold the object in place
Answer:
50 N
4.2 N
Explanation:
i) The force needed to balance the boom is 2400 N. If the weight of the counterbalance is 2350 N, then the downward force the park attendant must apply is 50 N.
ii) When the boom is resting on the end support, the normal force is:
∑τ = Iα
-W (0.50) + F (3.0) − N (6.0) = 0
-0.50 W + 3.0 F = 6.0 N
N = (-0.50 W + 3.0 F) / 6.0
N = (-0.50 × 2350 + 3.0 × 400) / 6.0
N ≈ 4.2
Milky way doesnt have planets oribting arount the sun like our solarsystem.
Answer:
Aufbau Principle
Explanation:
According to the The Aufbau Principle, the electrons will initialize the filling process of the orbital by filling the available orbitals with the lowest energy first prior to the filling the available orbitals of higher energies.
Since, in order to gain stability, each and every electron in an atom tends to minimize its energy, therefore, the energy of the atom as a whole is also minimum.
Answer:
angular velocity
Explanation:
In physics the quantity represented by is the <u>angular velocity, </u>the units of the angular velocity are radians/second.
This is a quantity that represents the speed when the movement of an object follows a circular path.
Mathematically defined as follows:
Where is the period, the time it takes to complete a lap.