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Do both feet need to be on the ground at the same time for a touchdown?
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When an object is lifted 12 feet off the ground it gains a certain amount of potential energy if the same object is lifted 36 feet off the ground its potential energy is?
The potential energy of an object can be calculated using the simple formula Potential Energy = mass*acceleration due to gravity*distance above ground. For simplification, we can call the mass m and the acceleration g. Using these values, the object will have a potential energy of 12m*g when it is 12 feet off the ground. When it is 24 feet off the ground, it will have an energy of 24*m*g. This is nothing more than twice the value we calculated before, so we can say that the object's potential energy at 24 feet is twice its potential energy at 12 feet. In order to give an exact value, we would need to know the mass of the object as well.
What is force in regards to physical science?
Force is a description for an interaction between bodies. Usually a pull and/or push. To figure out how much force it would take to move a 50lb box you need: box weight, gravity, friction on the ground and an angle that your pushing. Even when you stand still on earth there are forces pushing or pulling to keep your feet on the ground.
Gravitational potential energy is always measured in relation to?
Relative to some arbitrary reference height. Often the ground is used, but this need not be so.Relative to some arbitrary reference height. Often the ground is used, but this need not be so.Relative to some arbitrary reference height. Often the ground is used, but this need not be so.Relative to some arbitrary reference height. Often the ground is used, but this need not be so.
What ground speed does a 747 need for liftoff?
Between 130 and 180 knots is enough for most (different weights, configurations, etc) Boeing 747 to get off the ground
How friction is useful in pushing a car?
If you are behind a car, about to push it forward from a resting position, you will need to exert a force on the car to accelerate it from resting position. While you are pushing against the car, however, there will be a reaction force pushing back at you. In order to produce a large net force against the car without being pushed backward yourself, you need to increase the friction of your feet against the ground...so that the frictional force between your feet and the ground prevents you from sliding backward. The combinations of the frictional force and your force pushing forward against the car will cause the car to move forward. The frictional force of the car being moved from resting position also has to be overcome, of course.
How many feet do you need on the ground for it to be ruled a complete pass without being forced out?
Both feet must touch the ground for the pass to be complete. Once both feet touch the ground, the offensive player can be forced out and the play is still complete.
Can you lift either foot off the ground in a throw in?
In a throw in both feet need to stay on the ground. You may get a running start and drag one foot behind you, but both feet need to stay on the ground. If a foot is lifted the throw in will go to the other team.
What is a touchdown in pro football?
A touchdown is when you have crossed the plane of the end zone either by running the ball into it (which you only need to make sure the ball passes the plane), by knocking over the orange post in the corner of the end zone while in possession of the ball (which are in the end zone), or by catching the ball in the end zone (both feet must be in the end zone when caught).
How deep in the ground does a garden box need to be?
you could say......2 feet
Does the ground wire on a 200 amp panel need to be looped through both ground rods?
Not looped but connected to both ground rods and then connected to the meter base.
What do you do with a shoe?
what you do is put it on your feet so that your feet may be protected from glass and things on the ground witch can harm your feet and that is why u need shoes onto your feet mostly for safetey
30 feet is how many bag of mulch?
how many bags of mulch will i need 2 inches thick and 30 feet of ground ?
How far do overhead wires need to be from above ground pool?
ten feet or more is a nice distance.
How many gallons of water in a 15 feet above ground swimming pool that is 3 feet deep?
You need to provide information on the area of the pool as well.
How tall do you have to be to ride a 175cc motorcycle?
It is not so much a question of height per cc, it is seat height versus your leg length. When sitting on the seat, you should be able to have both feet firmly planted on the ground. If you need to lean to either side to reach the ground, the motorcycle is too tall.
How high does the fence need to be around an above ground pool?
It has to be six (6) feet with a locked gate. peace out
How can you get a low slung cruiser for yourself you are barely 5.1 your feet barely touch road on a low slung bike you need to rest your feet fully on the road while mount on bike?
On a normal bike, you shouldn't reach the ground with both feet when your butt is in the saddle. If you can put both feet flat on the ground while in the saddle, the saddle is too low. The correct height for the saddle is when your leg is almost entirely straight with your foot on the pedal in its lowest position. Anything else and you will be riding with your legs bent, which is uncomfortable, slow and not good for your knees. If you insist, check out the link for "crank-forward bikes" below.
