0
Add your answer:
Earn +20 pts
How does Newton's law apply to Pulling a tablecloth from under a set table?
Newton's first law statesAn object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.There are forces acting on the table setting. In particular there is gravity, approximately perpendicular to the plane of the table holding the silver, plates and glassware in place. These gravitational forces are balanced by the integrity of the table itself. These forces are applied on opposite sides of the tablecloth. Inherent in the system are the coefficients of friction between tablecloth and table as well as the various coefficients of friction between tablecloth and set pieces. These coefficients will give the amount of force that will be applied should the tablecloth be moved - either slowly or rapidly.If the table cloth is moved, the aforesaid forces will be brought to act on each item. The total impulse on the objects would be the acceleration due to friction times the duration of the movement. The net velocity imparted to the place setting would by the acceleration from the force of friction time the time of acceleration.By reducing the amount of time that the force is applied, it is possible to reduce the impulse and resulting velocity of the table setting pieces. Also, by choosing a tablecloth with a low coefficient of friction the impulse imparted would be reduced. The moving pieces are then slowed by the friction of the table-set piece coefficient of friction.In the limit then the table cloth can be removed leaving the place setting minimally disturbed.
What are trials in an experiment?
Trials are the amount of times a certain experiment is repeated.
The wave question says that a wave speed is equal to its wavelength times its?
Frequency.
Why does it take more force to accelerate a more massive object?
A force will not increase or decrease an acceleration. If the force is constant, it will cause a constant acceleration. It may increase or decrease the speed. The change of velocity - for the same force - is the same, whether the speed is increasing, decreasing, or just changing direction.
How many times donating platelets equal a gallon?
The donation of the platelets to equal a gallon usually takes one hour. This usually takes place after every three months.
What does the amount of force times the time applied equal?
impulse
What has to happen in order for work to be done on an object?
Work is done on an object when a force is applied to move the object through a distance in the direction of the force. The amount of work done is equal to the force applied times the distance the object moves.
What does the amout of force times the time applied equal?
It is the impulse which equals the change in momentum.
What is the difference between force and energy?
Force is equal to mass times acceleration. Energy can be calculated in several ways. A force applied for a given displacement is equal to energy in the form of work.
Does ceramic get harder the more times it is hit?
It will not get harder on hitting it but crack and even tend to break depending on the amount of force applied on it It will not get harder on hitting it but crack and even tend to break depending on the amount of force applied on it
What the magnitude of resultant vector of two equal forces each of magnitude F is?
the resultant magnitude is 2 times the magnitude of F as the two forces are equal, Resultant R= F + F = 2F and the magnitude of 2F is 2F.
What are some interesting facts about inclined planes?
The purpose is to reduce the force that must be applied to raise a load. The inclined plane and rollers were used in building the pyramids in Egypt. To raise a body vertically a force must be applied that is equal to the weight of the body. The amount of work done in raising the body is equal to its weigt times the distance through which it is raised. If friction is ignored, the work done using the inclined plane will be exactly equal to the work done in lifting the body directly.
What are facts about inclined planes?
The purpose is to reduce the force that must be applied to raise a load. The inclined plane and rollers were used in building the pyramids in Egypt. To raise a body vertically a force must be applied that is equal to the weight of the body. The amount of work done in raising the body is equal to its weigt times the distance through which it is raised. If friction is ignored, the work done using the inclined plane will be exactly equal to the work done in lifting the body directly.
Is it possible that no transformation of energy may take place even when a force is applied to a body?
Yes, it is possible for no transformation of energy to take place even when a force is applied to a body if the body does not move in the direction of the force or if the force is cancelled out by an equal and opposite force. In such cases, the energy remains constant.
If a constant force is applied for double the amount of time What happens to the impulse applied?
If a constant force is applied for double the amount of time, the impulse applied will also double. Impulse is equal to force multiplied by time, so if either the force or the time doubles, the impulse will also double.
How many gallons does 5 oz equal?
640 ounces equal 5 gallons or you can just multiply 128 ounces 5 times and it will equal an amount of 640 ounces
What is work equal to force times?
Work is equal to the force applied to an object multiplied by the distance the object moves in the direction of the force. Mathematically, work = force × distance (W = F × d).
