« previous next »

Author Question: The formula mg = kx describes a spring that is stretched by hanging an object on it. The constant k ... (Read 97 times)

rosent76

  • Hero Member
  • *****
  • Posts: 516
on: Jul 27, 2018
The formula mg = kx describes a spring that is stretched by hanging an object on it. The constant k is called the spring constant. What are its units?
 
  A) m s2/kg
  B) kg/s2
  C) kg s2
  D) s/m kg
  E) N m

Question 2

Daisy throws a rock horizontally with a speed of 12.0 m/s from a bridge. It falls 2.28 s before reaching the water below.
 
  (a) When the rock hits the water it is traveling with what horizontal component of velocity?
  (b) What was the total speed just before hitting the water?


efwsefaw

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

(a) 12.0 m/s
(b) 25.4 m/s


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

Did you know?

After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.

Spot the hidden object Spot the hidden object
Ford spring-lock connectors require a special tool for disassembly. Ford spring-lock connectors require a special tool for disassembly.
Determining the order and rate constant of an irreversible first-order reaction Determining the order and rate constant of an irreversible first-order reaction
Slope Formula Slope Formula
How do i calulate an object of that is dropped from (g=9.80m/s2) for 5 s before hitting the ... How do i calulate an object of that is dropped from (g=9.80m/s2) for 5 s before hitting the ...
Americium-243 has a decay constant of 9.39 × 10-5 years-1. How long will it take Americium-243 has a decay constant of 9.39 × 10-5 years-1. How long will it take
Video: Dissociative Disorders (Part 3)

For a complete list of videos, visit our video library