A 1.9-kg rock is released from rest at the surface of a pond 1.8 m deep. As
Question:
A 1.9-kg rock is released from rest at the surface of a pond 1.8 m deep. As the rock falls, a constant upward force of 4.6 N is exerted on it by water resistance. Calculate the nonconservative work, Wnc, done by water resistance on the rock, the gravitational potential energy of the system, U, the kinetic energy of the rock, K, and the total mechanical energy of the system, E, when the depth of the rock below the water's surface is
(a) 0 m,
(b) 0.50 m,
(c) 1.0 m. Let y = 0 be at the bottom of the pond.
Step by Step Answer:
The nonconservative work done by water resistance equals minus the f...View the full answer
Related Video
In Physics, a force is an influence that can change the motion of an object. A force can cause an object with mass to change its velocity, i.e., to accelerate. Force can also be described intuitively as a push or a pull. A force has both magnitude and direction, making it a vector quantity. In this video, the concept of force and torque is demonstrated with the practical application of changing the flat tire of the car.
Students also viewed these Mechanics questions
-
A 2.00-kg rock is released from rest at a height of 20.0 m. Ignore air resistance and determine the kinetic energy, gravitational potential energy, and total mechanical energy at each of the...
-
A 2.00-kg rock is released from rest at a height of 20.0 m. Ignore air resistance and determine the kinetic energy, gravitational potential energy, and total mechanical energy at each of the...
-
A uniform electric field exists in a region between two oppositely charged plates. An electron is released from rest at the surface of the negatively charged plate and strikes the surface of the...
-
ABC Corporation earned $300,000 in profit in the current tax year, which is significantly higher than its previous year's earnings. Thus, its shareholders expected large dividends in the current...
-
Efficient Markets Hypothesis For each of the following scenarios, discuss whether profit opportunities exist from trading in the stock of the firm under the conditions that (1) the market is not weak...
-
Think about someone you know who recently suffered a significant losse.g., a job, a health issue, a divorce, or a death. Write a message that you can send as a handwritten note or in an email. Will...
-
To check on an ambulance service's claim that at least \(40 \%\) of its calls are life-threatening emergencies, a random sample was taken from its files, and it was found that only 49 of 150 calls...
-
Classify the following costs of activity inputs as variable, fixed, or mixed. Identify the activity and the associated activity driver that allow you to define the cost behavior. For example, assume...
-
Because of its high dielectric strength, SF6 (sulfur hexafluo-ride) gas is widely used as an insulator and a dielectric in HV applications such as HV transform-ers, switches, circuit breakers,...
-
Sulphur dioxide is emitted at a rate of 2kg/s from the top of a chimney that is 120m high. The plume initially rises vertically a further 10m above the chimney exit, before being convected...
-
A 111-kg seal at an amusement park slides from rest down a ramp into the pool below. The top of the ramp is 1.75 m higher than the surface of the water, and the ramp is inclined at an angle of 26.5...
-
A 1250-kg car drives up a hill that is 16.2 m high. During the drive, two nonconservative forces do work on the car: (i) The force of friction, (ii) The force generated by the car's engine. The work...
-
In 1965, Intel cofounder Gordon Moore initiated what has since become known as Moore's law: the number of transistors per square inch on integrated circuits will double approximately every 18 months....
-
Which of the following statements is true? A. All OCI regions have three availability domains. B. HADR is not possible in a region with only one AD. C. Each AD has three fault domains. D. All OCI...
-
The manager repeated again his warning that we must use strong passwords. Your Task . Revise the following sentences to avoid redundancies.
-
Zakat is payable only on growing capital. Growing capital is a. a fixed asset that can be expanded. b. the realised gains on fixed assets. c. the realised and unrealised gains on fixed assets. d. the...
-
Orange Furniture Inc. (Orange) imports pine furniture from factories around the world for sale to retailers in Canada. On October 31, 2004, Orange bought a bedroom furniture set from a supplier in...
-
What proportion of Canadian employment is in non-profit organizations?
-
Rockwell Corporation issued $2 million of 5-year, 3% bonds dated January 1, 2021, at 100. Interest is payable annually on January 1 and July 1. Rockwell has a December 31 year end. a. Prepare the...
-
Compare and contrast debt financing and equity financing as ways of starting a new business. Does one have an overall advantage over the other? What situation is more favorable to the use of debt...
-
A fish maintains its depth in fresh water by adjusting the air content of porous bone or air sacs to make its average density the same as that of the water. Suppose that with its air sacs collapsed,...
-
A partially evacuated airtight container has a tight fitting lid of surface area 77 m2 and negligible mass. If the force required to remove the lid is 480 N and the atmospheric pressure is 1.0 x 105...
-
In 1654 Otto von Guericke, inventor of the air pump gave a demonstration before the noblemen of the Holy Roman Empire in which two teams of eight horses could not pull apart two evacuated brass...
-
What advantage does the private resident buying oce (store-owned offices) aord its stores that independent buying oces do not? Describe two functions of an independent buying office. Describe the 4...
-
10. Consider the following data - == - -5 1 3 4 -1 0 1 1 (a) Find the Least Squares Regression Line. (b) Find the coefficient of correlation and determination. (c) Find a 90% confidence interval for...
-
Which point on the graph y=4x are closest to the point (0, 2)? (Hint: consider the distance formula between two points)
Study smarter with the SolutionInn App