i saw 2 wireless mini camera one is 1.2 ghz and the other 2.4 ghz, i dont know what that means, all i want is good picture quaility and distance, which one is a better choice and what do they mean? i want to use it for my RC car
Tag Archives: distance
Whats the difference between a 1.2 GHz and 2.4 GHz wireless mini video camera?
Posted in RC Cars
Tagged camera, camera one, difference, distance, dont, Ghz, mini, mini camera, picture, quaility, saw 2, video, video camera, Whats
At what horizontal distance between the target and the rocket should you launch?
As a science fair project, you want to launch an 850 g model rocket straight up and hit a horizontally moving target as it passes 31 m above the launch point. The rocket engine provides a constant thrust of 15.0 N. The target is approaching at a speed of 15 m/s. At what horizontal distance between the target and the rocket should you launch?
I was trying to use some of the kinematic equations to figure this one out, but I’m always missing some part to the problem or at least that’s what I’m thinking. Got any ideas?
Posted in Model Rockets
Tagged distance, Engine, horizontal, launch, launch point, model, model rocket, moving target, N. The, point, project, Rocket, rocket engine, Science, science fair project, target, thrust
does anyone know the current long distance record for rc plane flight?
does anyone know the current long distance record for rc plane flight?
Posted in RC Planes
Tagged anyone, distance, Flight, long distance, plane, plane flight, record
Is there a restriction on how far an RC plane can fly?
If I build an RC plane to fly a distance of 10 KM and back, can I fly it?
To prevent someone creating and RC plane to fly too far and hurt someone, is there a written law or regulation on it?
I need to know how to scale time. Can anyone help?
I am modeling HO (1:87) scale trains. A scale mile is approximately 60.68 feet. How long, in real time, should the model take to traverse this distance to cover the distance at a scale 10 MPH, or 30 MPH, and so on. I know there has to be a simple formula for making these calculations, but, I really didn’t pay much attention in math class. Help me out here, please.
Posted in Model Trains
Tagged anyone, attention, distance, formula, HO, math class, mile, modeling, mph, real time, scale, scale mile, scale trains, time, traverse
please help! im so stressed with these 3 problems?
1. A worker pulls a sled with a force of 80 N directed at an angle of 60 degrees above the horizontal over a level distance of 6 m. If a frictional force of 24 N acts on the sled in a direction opposite to that of the worker, what net work is done on the sled?
a. 240 J, b. 216 J, c. 144 J, d. 96 J
2. A model rocket sits on the launch pad until its fuel is ignited, blasting the rocket upward. During the short time of blast-off, as the ignited fuel goes down, the rocket goes up because:
a. momentum is conserved in this process
b. the fuel pushes on the ground
c. air friction pushes on the escaping fuel
d. the downward force of gravity is less than the downward momentum of the fuel
please explain why you believe the answers are what they are just in case yours are different than mine. thanks a lot guys!
3. A 10 g bullet with an initial speed of 100 m/s is fired horizontally into a 90 g wodden block initially at rest on a frictionless horizontal surface. The bullet passes completely through the block and emerges with a final speed of 20 m/s in the horizontal direction. How much mechanical energy is lost in this process?
a. 44.4 J
b. 50 J
c. 26.4 J
d. 20 J
Posted in Model Rockets
Tagged acts, angle, direction, distance, Force, frictional, frictional force, horizontal, level, sled, work, worker
Physics problems, just want to double check my answers?
1. A worker pulls a sled with a force of 80 N directed at an angle of 60 degrees above the horizontal over a level distance of 6 m. If a frictional force of 24 N acts on the sled in a direction opposite to that of the worker, what net work is done on the sled?
a. 240 J, b. 216 J, c. 144 J, d. 96 J
2. A model rocket sits on the launch pad until its fuel is ignited, blasting the rocket upward. During the short time of blast-off, as the ignited fuel goes down, the rocket goes up because:
a. momentum is conserved in this process
b. the fuel pushes on the ground
c. air friction pushes on the escaping fuel
d. the downward force of gravity is less than the downward momentum of the fuel
please explain why you believe the answers are what they are just in case yours are different than mine. thanks a lot guys!
3. A 10 g bullet with an initial speed of 100 m/s is fired horizontally into a 90 g wodden block initially at rest on a frictionless horizontal surface. The bullet passes completely through the block and emerges with a final speed of 20 m/s in the horizontal direction. How much mechanical energy is lost in this process?
a. 44.4 J
b. 50 J
c. 26.4 J
d. 20 J
Posted in Model Rockets
Tagged acts, angle, check, direction, distance, Force, frictional, frictional force, horizontal, level, physics, physics problems, sled, worker