Answer: 0.5 HZ
Explanation: Frequency refers to the number of occurrences of a periodic event per time and is measured in cycles/second. In this case, there is 1 cycle per 2 seconds. So the frequency is 1 cycles/2 s
Answer:
A Pulsar
Explanation:
Such white dwarf is a Pulsar (from pulsating star). Three main features we find in this kind of celestial body
1. Incredibly high density, in a pulsar there is not what we can define as free interspace. Everything is mass
2.- Huge rotational speed (more than hundreds of kilometer) spinning at more than hundreds of kilometer per second
3.-Intense magnetic field
Combinations of thse features make pulsar emits important amount of energies with pricese periods of time. And if on earth we look a jet of electromagnetic radiation with a precise rigurosity (at pricese period of time) is because we are looking a pulsar spinning and each time the radiation appears is a turn of the pulsar
Answer:
v₀ = 50.46 m / s
Explanation:
This is a projectile launch exercise where the scope is given by
R = v₀² sin 2 θ / g
Let's clear the initial speed
v₀ = √(G R / sin 2θ
)
Let's reduce the distance
R = 0.3 km (1000m / 1km)
R = 300 m
Let's calculate
v₀ = √ (9.8 300 / sin2 π / 6)
Let's calculate the breast in radians
sin π / 3 = 0.8660
v₀ = √ (2546.11)
v₀ = 50.46 m / s