Homework Answers
Add Answer to:
A 56g rock was dropped from a height of 12 m. A) What is the force...
You dropped a 56 g tennis ball from a height of 12 m. A) What is...
You dropped a 56 g tennis ball from a height of 12 m. A) What is the force of gravity acting on the ball? Air resistance on the ball during the fall is a constant upward force of 0.10 N. B) What is the net force acting on the ball? C) What is the net work done on the ball? Ignore negative signs in final answers (pick downwards as the positive direction) round all answers to 3 sig figs
A storeho use worker pushes a box with a refrigerator (mass:96.0-kg) at constant velocity for a distance of 11.0 m. He pushes in the direction parallel to the horizontal floor. A 250.0-N friction...
A storeho use worker pushes a box with a refrigerator (mass:96.0-kg) at constant velocity for a distance of 11.0 m. He pushes in the direction parallel to the horizontal floor. A 250.0-N frictional force opposes the motion of the box. Use Newtons second law and definition of work to answer the questions below. (a) (1 point) What is the acceleration of the box? as (b) (2 points) What is the net force, acting on the box? Write down Newtons second...
Laika is pushing a box up an incline of 30?. Laika exerts a force of 20N...
Laika is pushing a box up an incline of 30?. Laika exerts a
force of 20N in the positive x direction (not striaght up the
incline, but into the incline, as shown). Given that the box
started at rest (initial velocity = 0m/s), has a mass of 2kg, and
is accelerating up the incline at a constant rate of 0.5m/s2 for 4
seconds, what is the net Work done on the box? what is the work
done by gravity?
You throw a 0.5 kg rock upward from your hand (which is 1 m off the...
You throw a 0.5 kg rock upward from your hand (which is 1 m off the ground when the rock leaves it). The rock rises to a maximum height of 2.5 m and then falls past your hand to the ground. From the moment you let it go until the moment just before it lands, what can you say about the work that gravity does on the rock? Group of answer choices a. Gravity does negative net work on the...
A 40 kg crate is pulled 50 m along a horizontal floor by a constant force...
A 40 kg crate is pulled 50 m along a horizontal floor by a constant force exerted by a person, Fp = 150 N, which acts as 30 degree angle. The floor is rough and exerts a friction for Ff = 40 N. Determine: a) the work done by each force acting on the crate b) the net work done on the crate
Question 21 5 pts A small space rock of mass m is released from rest a...
Question 21 5 pts A small space rock of mass m is released from rest a very long distance away ("infinity from a planet of mass M and radius R. The rock falls to the planet's surface. What is the network done on the rock by the force of gravity from the initial moment of release to just before it hits the surface of the planet? You can ignore air resistance and assume that the rock falls in along a...
Work from a Constant Force
Learning Goal: To understand how to compute thework done by a constant force acting on a particle that moves in astraight line.In this problem, you will calculate the work done by a constantforce. A force is considered constant if is independent of . This is the most frequently encountered situation inelementary Newtonian mechanics.part AConsider a particle moving in a straight linefrom initial point B to final point A, acted upon by a constantforce .The force (think of it as a...
13) A block of mass 2.0 Ag is pushed 2.5 m along a frictionless horizontal table...
13) A block of mass 2.0 Ag is pushed 2.5 m along a frictionless horizontal table by a constant 1o N force directed 28° above the horizontal. The work done on the block by the applied force is. A) 25.0J B) 11.7J C22.0J D) zero What is the total 14) A 0.5 Ag particle has a speed of 4.0 m/s at point A and 6.0 m/s at point B. work done on the particle as it moves from A to...
WUrR to receive maximum credit. etY, a rock of mass 3.00 kg dropped from a height...
WUrR to receive maximum credit. etY, a rock of mass 3.00 kg dropped from a height of 70.0 meters takes 5.00 seconds to land. The force of air resistance was 6.00 N. a) Draw a picture representing the physical situation and make a chart outlining the pertinent information (20) L b) Determine the acceleration of the rock (20) c) D etermine the acceleration due to gravity on Planet Y (20) d) Draw the free-body diagram for the rock (20) e)...
Pls help Three students converge on the last textbook in the store. All three it and...
Pls help
Three students converge on the last textbook in the store. All three it and begin to pull in the directions shown in the above figure. Student A exerts a force of 51.43 N, student B pulls with a force of 24.06 N, and student C pulls with a force of 74.15 N at an angle theta (theta) 80.55 degrees above the -x axis. Considering these three forces (ignore the force of gravity on the book), what is the...
A storeho use worker pushes a box with a refrigerator (mass:96.0-kg) at constant velocity for a distance of 11.0 m. He pushes in the direction parallel to the horizontal floor. A 250.0-N frictional force opposes the motion of the box. Use Newtons second law and definition of work to answer the questions below. (a) (1 point) What is the acceleration of the box? as (b) (2 points) What is the net force, acting on the box? Write down Newtons second...
Laika is pushing a box up an incline of 30?. Laika exerts a
force of 20N in the positive x direction (not striaght up the
incline, but into the incline, as shown). Given that the box
started at rest (initial velocity = 0m/s), has a mass of 2kg, and
is accelerating up the incline at a constant rate of 0.5m/s2 for 4
seconds, what is the net Work done on the box? what is the work
done by gravity?
Question 21 5 pts A small space rock of mass m is released from rest a very long distance away ("infinity from a planet of mass M and radius R. The rock falls to the planet's surface. What is the network done on the rock by the force of gravity from the initial moment of release to just before it hits the surface of the planet? You can ignore air resistance and assume that the rock falls in along a...
13) A block of mass 2.0 Ag is pushed 2.5 m along a frictionless horizontal table by a constant 1o N force directed 28° above the horizontal. The work done on the block by the applied force is. A) 25.0J B) 11.7J C22.0J D) zero What is the total 14) A 0.5 Ag particle has a speed of 4.0 m/s at point A and 6.0 m/s at point B. work done on the particle as it moves from A to...
WUrR to receive maximum credit. etY, a rock of mass 3.00 kg dropped from a height of 70.0 meters takes 5.00 seconds to land. The force of air resistance was 6.00 N. a) Draw a picture representing the physical situation and make a chart outlining the pertinent information (20) L b) Determine the acceleration of the rock (20) c) D etermine the acceleration due to gravity on Planet Y (20) d) Draw the free-body diagram for the rock (20) e)...
Pls help
Three students converge on the last textbook in the store. All three it and begin to pull in the directions shown in the above figure. Student A exerts a force of 51.43 N, student B pulls with a force of 24.06 N, and student C pulls with a force of 74.15 N at an angle theta (theta) 80.55 degrees above the -x axis. Considering these three forces (ignore the force of gravity on the book), what is the...
Most questions answered within 3 hours.
-
Why do men earn more money than women in America?
asked 1 minute from now -
Sales of tablet computers at Ted Glickman's electronics store
in Washington, D.C., over the past 10...
asked 8 minutes ago -
Short essay question:
First, discuss the anatomical differences between Paleocene
pro-primates and Eocene eu-primates and explain...
asked 7 minutes ago -
Suppose we have a binomial experiment in which success is
defined to be a particular quality...
asked 29 minutes ago -
march the type of cellular control with the description: enzyme
induction and the enzyme repression. How...
asked 39 minutes ago -
Brief Exercise 5-09 (Part Level Submission)
The following information relates to Blue Spruce Corp. for the...
asked 39 minutes ago -
An unknown amount of a compound with a molecular mass of 284.04
g/mol is dissolved in...
asked 44 minutes ago -
You are at rest at a stop sign. There is another stop sign that
is 100...
asked 45 minutes ago -
Calculate the equilibrium electrode potential for Fe3+/Fe2+
redox system, if the initial concentration of Fe2+ is...
asked 49 minutes ago -
Describe in detail with graph and diagram how bonding force,
bonding curves and bonding energy at...
asked 1 hour ago -
Gingerbread cookies become inedible if not eaten quickly enough.
Clarence is trying to determine how many...
asked 1 hour ago -
A
crane lifts a 200 kg block a height of 10 m in 18 seconds. What...
asked 1 hour ago