Carbon-14 has a half-life of 5,730 years. If scientists discover a mummified Cro-Magnon specimen, they will first want to determine its age. When examining a sample from the bone remains, the scientists discover the specimen is composed of 12.5% carbon-14 and 87.5% nitrogen-14. How old is this mummy? A. 5730 yrs old
B. 22920 yrs old
C. 11460 yrs old
D. 17190 yrs old

An astronaut floating in space is trying to use her jetpack to get back to her space station, but she is being pulled away by a nearby planet, as shown in the image below. her jetpack provides a constant thrust of 310 n. if she angles her jetpack in such a way that it cancels out the vertical force due to the planet's gravity, what is her net horizontal force? thaud 487 o a. 54.8 n toward the space station o b. 212.9 n toward the space station o c. 185.2 n toward the space station o d 956 n toward the space station