a heavenly body has a mass equal to half of the mass of the earth and its radious is half is half as that of the earth. if a stone weighs 100N on thr surface of the earth, what is the weight of the stone on the heavenly body?

Anybody wanna ? (picture included? )

Two charged particles, q1 and q2, are located on the x-axis, with q1 at the origin and q2 initially at x1 = 12.2 mm. in this configuration, q1 exerts a repulsive force of 2.62 µn on q2. particle q2 is then moved to x2 = 18.0 mm. what is the force (magnitude and direction) that q2 exerts on q1 at this new location? (give the magnitude in µn.)

Which property is expressed in distance units? o a. period o b. wavelength o c. speed o d. frequency