The DJI Mavic Pro may not fly over 30m due to various reasons, such as local regulations or restrictions imposed by the manufacturer. In some areas, there are height restrictions for drone flights to ensure safety and privacy. Additionally, the manufacturer may have programmed the drone to limit its maximum altitude to comply with regulations and to prevent potential safety hazards. It is important for drone operators to be aware of and follow the regulations and guidelines in their area to ensure responsible and legal drone usage. **

The length of the LAN cable is 30m. **

The number of chickens you can keep on 30m² of land will depend on the space requirements per chicken. On average, each chicken needs about 1-2 square meters of space to roam comfortably. Therefore, with 30m² of land, you could keep around 15-30 chickens. It is important to consider not just the space for the chickens to move around but also space for their coop, nesting boxes, and feeding areas. **

The weight of a spherical asteroid with a radius of about 30m can be calculated using the formula for the volume of a sphere (V = 4/3 * π * r^3) and the density of the asteroid. Assuming a typical density of 2,000 kg/m^3 for an asteroid, the weight can be calculated by multiplying the volume by the density and the acceleration due to gravity (W = V * density * g). Therefore, the weight of a spherical asteroid with a radius of about 30m would be approximately 1.41 million kilograms. **

The number of chickens you can keep on a 30m² plot of land will depend on the space requirements for each chicken. On average, a chicken needs about 1-2 square meters of space to roam comfortably. Therefore, you could potentially keep around 15-30 chickens on a 30m² plot of land at most. It is important to consider not only the space needed for the chickens but also their welfare and access to food, water, and shelter. **

Using a 30m long LAN cable can potentially degrade your internet performance. The longer the cable, the more signal degradation and interference can occur, leading to slower internet speeds and potential connection issues. It's important to use high-quality, shielded cables and proper installation techniques to minimize these issues. Additionally, using a longer cable can also increase latency, which can affect online gaming and video streaming. **

To find the acceleration of a body after traveling 45m at a speed of 30m/s, we need to use the equation of motion: \( v^2 = u^2 + 2as \), where \( v \) is the final velocity, \( u \) is the initial velocity, \( a \) is the acceleration, and \( s \) is the distance traveled. Given that \( u = 30m/s \), \( s = 45m \), and the body starts from rest, we can rearrange the equation to solve for acceleration: \( a = \frac{{v^2 - u^2}}{{2s}} \). Substituting the values, we get \( a = \frac{{(0)^2 - (30)^2}}{{2(45)}} = \frac{{-900}}{{90}} = -10m/s^2 \). Therefore, the acceleration of the body after 45m at a speed of 30 **

To find the acceleration of a body after traveling 45m at a velocity of 30m/s, we can use the equation of motion: \( v^2 = u^2 + 2as \), where \( v \) is the final velocity (30m/s), \( u \) is the initial velocity (0m/s as the body starts from rest), \( a \) is the acceleration, and \( s \) is the distance traveled (45m). Rearranging the equation to solve for acceleration, we get \( a = \frac{{v^2 - u^2}}{{2s}} = \frac{{(30m/s)^2 - (0m/s)^2}}{{2 \times 45m}} = \frac{{900m^2/s^2}}{{90m}} = 10m/s^2 \). Therefore, the acceleration of the body is 10m/s². **