Verifică-ti cunoştinţele Exersează
1. Transcrie enunturile de mai jos pe caiet şi completează spațiile punctate;
a) Corpurile care au proprietatea de a atrage corpuri usoare se află în starem
Corpurile neelectrizate sunt corpuri
b)... caracterizează gradul de electrizare a corpului.
c) Sarcina electrică a unui corp neutru este egală cu
d) în urma frecării cu o bucată de țesătură, tubul de plastic se u
e) Bastonașul de sticlă frecat cu o țesătură de mătase este încărcat cu sarcină
electrică
f) Sarcinile electrice de... se atrag, iar cele de... se resping,​

A900 kg roller coaster car is travelling westward on the track and begins to slow down from 18m/s to 2m/s. how long does it take the roller coaster car to decelerate if the force acting on the car to slow it is 7024n? how far does the roller coaster travel during this time?

Click the game tab at the bottom of the simulation and select level 1. (there is no seesaw balance for this part of the activity.) balance the first equation, and click check to see if you got it right. if you can’t balance it in the first try, you can try again. work through the five equations for level 1. click continue to go on to level 2, and later level 3. each level is more difficult than the one before. keep trying until all the equations are balanced. in one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

In addition to gravity, what is the other predominant force that affects the motion of a pendulum?