This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A 7.0-kg block on a horizontal frictionless surface is attached to a light spring (force constant = ... (Read 1118 times)

V@ndy87

  • Hero Member
  • *****
  • Posts: 571
on: Aug 1, 2020

Question 1

A 6.0-kg block slides along a horizontal surface. If µk = 0.20 for the block and surface, at what rate is the friction force changing the mechanical energy of the block at an instant when its speed is 4.0 m/s?

◦
−59 W

◦
−47 W

◦
−71 W

◦
−82 W

◦
+71 W


Question 2

A 7.0-kg block on a horizontal frictionless surface is attached to a light spring (force constant = 1.2 kN/m). The block is initially at rest at its equilibrium position when a force of magnitude P acting parallel to the surface is applied to the block, as shown. When the block is 8.0 cm from the equilibrium position, it has a speed of 0.80 m/s. How much work is done on the block by the force P as the block moves the 8.0 cm?



◦
7.4 J

◦
5.4 J

◦
6.1 J

◦
6.7 J

◦
4.9 J
Physics for Scientists and Engineers ¦ Serway, Jewett ¦ 9th Edition
Buy Test-Bank


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by V@ndy87 on Aug 1, 2020

ebenov

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Aug 1, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 25% of students answer this correctly


V@ndy87

  • Member
  • Posts: 571
Reply 2 on: Aug 1, 2020
:D TYSM

aliotak

  • Member
  • Posts: 326
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

A biofilm composed of a community of microorganisms glued by mucilage to a surface. A biofilm composed of a community of microorganisms glued by mucilage to a surface.
Schematic of an automated external defibrillator (AED) attached to a patient. Schematic of an automated external defibrillator (AED) attached to a patient.
Water vapor is supplied to the atmosphere by local evaporation or horizontal transport (advection). Water vapor is supplied to the atmosphere by local evaporation or horizontal transport (advection).
Sliding effleurage with a thumb between metatarsals on the dorsal foot surface. Slide from web to ... Sliding effleurage with a thumb between metatarsals on the dorsal foot surface. Slide from web to ...
Pediatric Nomogram Used for Determining Body Surface Area Pediatric Nomogram Used for Determining Body Surface Area
A laser emits a pulse of light that lasts 10 ns. The light has a wavelength of 690 nm, and each ... A laser emits a pulse of light that lasts 10 ns. The light has a wavelength of 690 nm, and each ...
Video: Mendel's Principles of Inheritance (Father of Genetics)

For a complete list of videos, visit our video library