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What two variables does weight include?
Weight includes two main variables: mass and gravitational force. Mass is the amount of matter in an object, while gravitational force is the pull exerted by a planet or celestial body on that mass. The weight of an object can vary depending on the strength of the gravitational field it is in, such as on different planets.
Which forces have infinite range?
The gravitational force and the electromagnetic force have infinite range. Gravitational force acts between any two masses, regardless of the distance separating them, while electromagnetic force operates between charged particles over any distance as well. Both forces diminish with distance but never completely vanish, allowing them to influence objects even at vast separations. In contrast, the strong and weak nuclear forces have limited ranges, operating only at subatomic scales.
What is the major points of a lever and state what each of them entails?
A lever consists of three major points: the fulcrum, the effort, and the load. The fulcrum is the pivot point around which the lever rotates. The effort is the force applied to move the lever, while the load is the weight or resistance that needs to be overcome. The arrangement and distance between these points determine the lever's mechanical advantage and efficiency in lifting or moving objects.
What is gradient in distance-time graph?
The gradient in a distance-time graph represents the speed or velocity of an object. It is calculated as the change in distance divided by the change in time, indicating how quickly distance changes over time. A steeper gradient indicates a higher speed, while a flat gradient indicates that the object is stationary. If the gradient is negative, it suggests that the object is moving back towards the starting point.
Why does applied torque not change at 90 degrees?
At 90 degrees, the applied torque remains constant because torque is defined as the product of the force and the distance from the pivot point, multiplied by the sine of the angle between the force vector and the lever arm. At 90 degrees, the sine of the angle is 1, meaning that the entire force contributes to the torque. Therefore, while the angle changes, the magnitude of the torque does not, as it is maximized when the force is applied perpendicular to the lever arm.
How much work does an elephant do while moving a circus wagon 20 meters with pulling force?
The work done by the elephant while moving the circus wagon can be calculated using the formula: Work = Force x Distance. If the pulling force exerted by the elephant is known, the work done can be calculated by multiplying the force by the distance of 20 meters.
What two forces act on you while your in a moving elevator?
1). gravitational attraction between you and the earth 2). upward "normal" force exerted by the floor on the bottom of your feet These are the same forces that act on you while you're standing on anything, whether it's moving or not.
What is the up force on a moving car?
The up force on a moving car is the force exerted by the tires on the road in the opposite direction of gravity. This force helps to support the weight of the car and keep it from sinking into the ground. It is crucial for providing traction and stability while the car is in motion.
How the reaction force will act on an object while pulling and pushing the object placed on a table?
When pulling an object on a table, the reaction force will be equal and opposite to the pulling force exerted on the object. When pushing an object on a table, the reaction force will be equal and opposite to the pushing force exerted on the object. In both cases, the table exerts a reaction force to prevent the object from moving.
How much work in joules is performed when a force of 800.0 N is exerted while pushing a crate across a level floor for a distance of 1.5 meters?
We must assume that the force pushes parallel to the floor.Work = (force) x (distance) = (800) x (1.5) = 1,200 newton-meters = 1,200 joules
How do you find the output and input force of a doorknob?
The output force is the force applied by your hand to the doorknob, while the input force is the force exerted by the doorknob on the door. To find these forces, you can measure the distance from the point where your hand touches the doorknob to the center of the doorknob for input force, and the distance from the same point to where the force is applied by your hand for output force, and then apply the principle of moments.
What is a effort force vs effort distance trade off?
The trade-off between effort force and effort distance refers to the relationship where increasing the distance over which a force is applied (effort distance) can reduce the amount of force (effort force) needed to accomplish a task. This trade-off occurs in simple machines such as levers, where adjusting the distance from the pivot point affects the amount of force required to move an object. A longer effort distance allows for less force to be exerted, while a shorter distance requires more force.
What are two types of ellastic force?
Two types of elastic forces are spring force and tension force. Spring force is the force exerted by a stretched or compressed spring, while tension force is the force exerted by a string or rope when it is pulled taut.
What is the disadvantage of a force advantage in a machine?
For example: think of the inclined plane- The advantage of gaining force is offset by the disadvantage of losing distance. So, that means... The longer the inclined plane is, the less steep it has to be and the less force a load needs to have exerted on it to move. :) Hope that answers your question. :)
Difference between force output and Work Output?
Force output refers to the amount of force applied to an object, while work output measures the amount of work done by that force in moving the object over a distance. In other words, force output is the strength or intensity of the force, while work output is the result of that force in regards to the distance the object is moved.
What is the normal force exerted by the table on a block when a downward force is applied to the block while it is at rest on the table?
The normal force exerted by the table on a block at rest is equal in magnitude but opposite in direction to the downward force applied to the block.
How much work does an elephant do while moving a circus wagon 20 meters while pulling a force of 200N?
The work done by the elephant can be calculated using the formula: work = force x distance. Therefore, the work done by the elephant in moving the circus wagon 20 meters while pulling a force of 200N would be 4000 Joules.
