Uma particula de carga eletrica q= 2,0.10^-6c é lançada num campo magnético uniforme de intensidade B =4,0.10^ com velocidade v=20 m/s, sendo v perpendicular a B, conforme a figura. Determine a intensidade, a direção e o sentido da força magnética que atua na particula

The pressure proportional to the area a- inversely b- directly c- increase d-decrease

Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600