Sobre um bloco atuam duas forças de módulo 150n como mostra a figura a seguir. sendo o cos50º= 0,64 e o sen50º= 0,76 o módulo da força resultante é aproximadamente: A- 82,6
B- 114,0
C- 96,0
D- 102,5
E- 150,0

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

Acar travels 40m in 8 seconds find the car speed

Awave has a wavelength of 7 mm and a frequency of 19 hertz. what is its speed?