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

Author Question: At the same moment from the top of a building 3.0 102 m tall, one rock is dropped and one is thrown ... (Read 101 times)

strangeaffliction

  • Hero Member
  • *****
  • Posts: 660
on: Jul 29, 2018
At the same moment from the top of a building 3.0  102 m tall, one rock is dropped and one is thrown downward with an initial velocity of 10 m/s. Both of them experience negligible air resistance.
 
  How much EARLIER does the thrown rock strike the ground? A) 0.95 s
  B) 0.86 s
  C) 0.67 s
  D) They land at exactly the same time.

Question 2

An electron is moving with the speed of 1780 m/s. What is its de Broglie wavelength?
 
  A) 409 nm
  B) 302 nm
  C) 205 nm
  D) 420 nm
  E) 502 nm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

parshano

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

A


strangeaffliction

  • Member
  • Posts: 660
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

apple

  • Member
  • Posts: 352
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Atlatl mammoth ivory "creeping hyena", found in La Madeleine rock shelter, dated back to c Atlatl mammoth ivory "creeping hyena", found in La Madeleine rock shelter, dated back to c
Volcanoes Are Rock Factories Volcanoes Are Rock Factories
Louis H. Sullivan, Bayard-Condict Building (detail), New York. Louis H. Sullivan, Bayard-Condict Building (detail), New York.
Building a Client Base Cont. Building a Client Base Cont.
The drum shown in the figure has a radius of 0.40 m and a moment of inertia of 2.3 kg m2about ... The drum shown in the figure has a radius of 0.40 m and a moment of inertia of 2.3 kg m2about ...
LiH has an experimental dipole moment, μ = 6.00 D. If LiH were 100% ionic, the distance ... LiH has an experimental dipole moment, μ = 6.00 D. If LiH were 100% ionic, the distance ...
Video: Anatomy and Chemical Makeup of a Single Hair (Animation)

For a complete list of videos, visit our video library