[填空题]
What is the weight ofn;4w5rgkvc kx8tho/( a seh xu6q6yk5t5dci0e( 4bck,9 fy8ej$76-\mathrm{kg}$ astronaut
(a) on Earth,
(b) on the Moon $\left(g=1.7 \mathrm{~m} / \mathrm{s}^{2}\right)$ ,
(c) on Mars $\left(g=3.7 \mathrm{~m} / \mathrm{s}^{2}\right)$,
(d) in outer space traveling with constant velocity?
