what is the time that the laser takes to travel from the heart to the moon and come back. knowing that the distance between the earth and the moon is 400000km

In the figure, the weight of the 20 cm long moving edge of a frame in the vertical plane in a magnetic field of B=0.57 out of the paper plane is W=0.1 N. The total of the frame is R=10 Q. What will be the limit velocity of the released edge? - 20cm a) v = 160 m/s b) V = 100 m/s c) V = 220 m/s d) O v= 55 m/s %3! O 0 00 QO 00 © 0 00 0 0 00

Considering electron and proton as two charged particles separated by d = 5.9 × 10-11 m calculate the gravitational force between the proton and electron and find its ratio to the Coulomb force. Take the mass of the proton 1.7 x 10-27 kg, the mass of the electron 9.1 x 10-31 kg, the value of = 9x10⁹ m/F. Give the answer for the universal gravitational constant 6.7 x 10-11 N kg 2m-2, the electron charge -1.6 x 10-¹9 C and the gravitational force in 10-47 N. 1 Απερ Answer:

A