Explain in terms of Newton's laws each of the following: How does beating a rug clean...
Explain in terms of Newton's laws each of the following: How does beating a rug clean it? How does a hummingbird or a helicopter hover in midair? What are the external forces acting when an automobile is traveling on a level road at a constant speed?
Homework Answers
newtons 1st law explains the 1st question .when we beat the rug we set the rug in motion while the dust particles due to their property of inertia tend to remain at rest (since initially they were at rest),and get separated from the carpet.
By newtons Third law, the bird or humming bird pushes the air downward creates an equal and opposing force pushing the helicopter or bird allowing it to hover.
The net external forces acting are friction, air resistance , normal force from road which cancel out the the driving force provided by engine giving net force zero
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Explain in terms of Newton's laws each of the following: How
does beating a rug clean...
Now let's consider forces and Newton's Laws. Discuss the following. A box with a mass of...
Now let's consider forces and Newton's Laws. Discuss the following. A box with a mass of 100 kg is on a frozen lake (no friction). A force of 200 N to the left, and another force of 200 N to the right act on the box. Describe the motion of the box. Also, if a car with a constant speed is turning a level corner, is there a net force acting on the car?
Mech Newton's second and third laws HW-40 2. Two crates, A and B, are in an...
Mech Newton's second and third laws HW-40 2. Two crates, A and B, are in an elevator as shown. The mass of crate A is Cable greater than the mass of crate B. a. The elevator moves downward at constant speed. Elevator i. How does the acceleration of crate A compare to that of crate B? Explain. A MA Constant ii. In the spaces provided below, draw and label separate free-body speed diagrams for the crates. Free-body diagram for Free-body...
Th e purpose is to refresh your memory on force diagrams and Newton's laws and to...
Th e purpose is to refresh your memory on force diagrams and Newton's laws and to generate ideas about fluids. Suppose that you carefully inject some oil into the middle of a beaker of water that is at rest on a table. As you may know from experience, the oil subsequently rises to the top of the water. Individually or with a partner, as directed by your instructor, do the following, in order to explain why the oil rises Consider...
The purpose is to refresh your memory on force diagrams and Newton's laws and to generate...
The purpose is to refresh your memory on force diagrams and Newton's laws and to generate ideas about fluids. Activity 1 Suppose that you carefully inject some oil into the middle of a beaker of water that is at rest on a table. As you may know from experience, the oil subsequently rises to the top of the water. Individually or with a partner, as directed by your instructor, do the following, in order to explain why the oil rises:...
1. Write Newton's 2nd Law in terms of momentum, p. 2. Why is momentum a more...
1. Write Newton's 2nd Law in terms of momentum, p. 2. Why is momentum a more physically fundamental quantity than velocity? 3. In terms of forces, what would the universe be like, qualitatively if, instead, momentum were p=>? 4. A finite collection of particles is contained in a box. The particles collide elastically with one another and the interior of the box. If we consider only the particles, then what, if any, forces are External Forces? 5. Determine the total...
Question 2 According to Newton's Laws of Motion, if I throw a baseball in outer space...
Question 2 According to Newton's Laws of Motion, if I throw a baseball in outer space - far from any other object- how will that ball move over time? (For the sake of this problem, let's neglect my mass) After the force of my hand no longer acts on the ball: Question 2 options: the ball will move forward, but it will gradually slow down and come to a stop once the force of my hand no longer acts on...
Explain the influence of each of the following on the production of lift on an airfoil....
Explain the influence of each of the following on the production of lift on an airfoil. a. Bernoulli's Principle (How does air speed up over the top of the airfoil?) b. Newton's Third Law c. Coanda Effect d. Magnus Effect
Instructions: Answer the following questions on separate paper OR within the Word document or Libre office...
Instructions: Answer the following questions on separate paper OR within the Word document or Libre office by adding space in between the questions. 1. If the acceleration of a system is zero, are no external forces acting on it? What about internal forces? Explain your answers. 2. If a constant, nonzero force is applied to an object, what can you say about the velocity and acceleration of the object? 3. When you take off in a jet aircraft, there is...
PLEASE PLEASE PLEASE Explain each part of the solution process. I'm trying to learn this and...
PLEASE PLEASE PLEASE Explain each part of the solution process. I'm trying to learn this and not just get an answer. I appreciate the help!! A new speedboat with mass m is traveling at v0 at some zero time when its engine is shut off. The magnitude of the frictional force fk between the boat and water is proportional to the speed v of the boat. As an equation, the magnitude of fk is equal to v, where v is...
Two forces of 200 N each are applied to an object, such that they are at...
Two forces of 200 N each are applied to an object, such that they are at 140 degree from each other. what is the magnitude of the third force necessary to keep the object stationary? A satellite in a stable circular orbit around the Earth, travelling at 2.3 Times 10^2 km above the ocean has a period of The planet Venus has a period of 225 days in its orbit around the sun. The mean radius of its orbit is:...
Mech Newton's second and third laws HW-40 2. Two crates, A and B, are in an elevator as shown. The mass of crate A is Cable greater than the mass of crate B. a. The elevator moves downward at constant speed. Elevator i. How does the acceleration of crate A compare to that of crate B? Explain. A MA Constant ii. In the spaces provided below, draw and label separate free-body speed diagrams for the crates. Free-body diagram for Free-body...
Th e purpose is to refresh your memory on force diagrams and Newton's laws and to generate ideas about fluids. Suppose that you carefully inject some oil into the middle of a beaker of water that is at rest on a table. As you may know from experience, the oil subsequently rises to the top of the water. Individually or with a partner, as directed by your instructor, do the following, in order to explain why the oil rises Consider...
The purpose is to refresh your memory on force diagrams and Newton's laws and to generate ideas about fluids. Activity 1 Suppose that you carefully inject some oil into the middle of a beaker of water that is at rest on a table. As you may know from experience, the oil subsequently rises to the top of the water. Individually or with a partner, as directed by your instructor, do the following, in order to explain why the oil rises:...
1. Write Newton's 2nd Law in terms of momentum, p. 2. Why is momentum a more physically fundamental quantity than velocity? 3. In terms of forces, what would the universe be like, qualitatively if, instead, momentum were p=>? 4. A finite collection of particles is contained in a box. The particles collide elastically with one another and the interior of the box. If we consider only the particles, then what, if any, forces are External Forces? 5. Determine the total...
Instructions: Answer the following questions on separate paper OR within the Word document or Libre office by adding space in between the questions. 1. If the acceleration of a system is zero, are no external forces acting on it? What about internal forces? Explain your answers. 2. If a constant, nonzero force is applied to an object, what can you say about the velocity and acceleration of the object? 3. When you take off in a jet aircraft, there is...
Two forces of 200 N each are applied to an object, such that they are at 140 degree from each other. what is the magnitude of the third force necessary to keep the object stationary? A satellite in a stable circular orbit around the Earth, travelling at 2.3 Times 10^2 km above the ocean has a period of The planet Venus has a period of 225 days in its orbit around the sun. The mean radius of its orbit is:...
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