A mass of 2.5 kg lies on a frictionless table, pulled by another mass of 4.1 kg under the
influence of Earth's gravity.
The acceleration of gravity is 9.8 m/s2.
What is the magnitude of the acceleration
a of the two masses?
Answer in units of m/s2.

Gunpowder residue is most likely to show up where on a shooters hands

Which of the following are considered noble gases? a. bromine b. neon c. argon d. chlorine

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?