The mass of Mars, 6.40 × 1023 kg, is about one-tenth that of Earth, and its radius, 3395 km, is about half that of Earth. What is the mean density (mass divided by volume) of Mars in kilograms per cubic meter?

The number 0.00325 × 10-8 cm can be expressed in millimeters as

The magnitude of is 5.5 m, and this vector lies in the second quadrant and makes an angle of 34° with the +y-axis. The components of are closest to

A plane flying horizontally at a speed of 50 m/s and at an elevation of 160 m drops a package, and 2.0 s later it drops a second package. How far apart will the two packages land on the ground if air resistance is negligible?

A plane flying horizontally at a speed of 50 m/s and at an elevation of 160 m drops a package, and 2.0 s later it drops a second package. How far apart will the two packages land on the ground if air resistance is negligible?

The number 0.00325 × 10-8 cm can be expressed in millimeters as

A hobbyist launches a projectile from ground level on a horizontal plain. It reaches a maximum height of 72.3 m and lands 111 m from the launch point, with no appreciable air resistance. What was the angle of launch if g = 9.80 m/s2?

What is 56 + written with the correct number of significant figures?

Which one of the following is not a basic ratio technique used to conduct financial analysis?

Listen to the recording.  Copy/paste the questions and write the answers in a complete sentence in the answer space. Use these special characters when necessary.  á  é  í   ó   ú   ñ 1. ¿ Quién ensena la clase de arqueologia 2.  ¿Cuántos dias a la semena hay clase de arquelogía? 3.  ¿Qué dias es la clase? 4.  ¿A qué hora es la clase los viernes? 5.  ¿Qué necesitan los estudiantes para el curso?