![jadenpmoore2008](/avatars/48585.jpg)
jadenpmoore2008
12.12.2020 •
Physics
Manu took a pebble and a sheet of paper both weigh one gram. His friend told that if we drop both at the same time, the pebble will fall straight to the floor, while the paper will slowly drift to the ground. Do you think friction have any role in this case? How can we relate that to the topic which we are learning today?
Solved
Show answers
More tips
- B Business and Finance How to Get Your Money Back When Lending? Top 7 Ways...
- S Sport How to Learn Swimming? Simple Tips for Beginners...
- P Photography and Videography Understanding HDR: How It Works and Why You Need It...
- G Goods and services Which TV is better - LCD or Plasma?...
- S Sport How to Learn to Pull Up on Monkey Bars?...
- L Leisure and Entertainment Scrapbooking: What is it and Why is it Becoming More Popular?...
- C Computers and Internet Where did torrents.ru move to?...
- B Business and Finance Understanding Cash Flow: What It Is and How It Works...
- C Computers and Internet What Are Peers and Seeds in Torrenting?...
- H Health and Medicine 10 Simple Techniques on How to Boost Your Mood...
Answers on questions: Physics
- P Physics The system is released from rest with no slack in the cable and with the spring stretched 160 mm. Determine the distance s traveled by the 16-kg cart before it comes...
- P Physics A rhinestone is made of flint glass with an index of refraction of 1.50. To make it more reflective, it is coated with a thin film of Si0 that has a refractive index...
- P Physics A 50 cm-long spring is suspended from the ceiling. A 250 g mass is connected to the end and held at rest with the spring unstretched. The mass is released and falls,...
- P Physics Little joey jumps into a pool on a cool fall morning. how can we describe the direction of energy transfer and temperature change between joey and the water...
- P Physics An elements atomic number is 88 how many protons would an atom of this element have...
- P Physics A technique for visualizing latent fingerprints on nonporous surfaces by exposing them to cyanoacrylate vapors is: o superglue fuming O iodine fuming O sublimation...
- P Physics A battery-powered set of five patio lanterns is connected in series. An ammeter measures the current through the battery as 0.75 A. The total resistance of the circuit...
- P Physics Two stone artifacts in a museum display are hung from a vertical wall with wires as shown. Find the tension in the vertical wire to which the bottom stone is attached....
- P Physics The first fundamental principle of fingerprints is: fingerprints are an individual characteristic O fingerprints are class characteristics O fingerprints remain unchanged...
- P Physics A 2000-kg truck traveling at a speed of 6.0 m/s slows down to 4.0 m/s along a straight road. What is the magnitude of the impulse?...
Ответ:
friction has no role to play in this case. because friction usually occurs between to parts which come in contacts. examples (a)our joints in the human body (b)two mechanical parts (shafts).
Explanation:
However what this topic relates to is gravity. The pebble and paper both weigh one gram, but have different density this is the sole reason why if both are drop from same height the pebble would reach the ground faster than the paper because it is more denser. unlike the paper with a lesser density which would take a longer time to reach the ground.
Ответ:
acceleration (a)=9.81 m/s^2, this is the acceleration due to gravity.
initial velocity=0m/s. The skydiver doesn’t start with any speed because she is on the plane or helicopter.
final velocity=16m/s This is the velocity (speed) the skydiver reaches
The equation we use is KE=.5mv^2
Kinetic energy=.5 mass x velocity^2
KE=.5(55kg)(16m/s)^2
KE=.5(55kg)(256m/s)
KE=.5(14080J)
J=Joules
KE=7040J
Kinetic energy is 7040 Joules (J)
Hope this helps