A train travelling at 50km/h approaches another train moving towards the first at 90km/h. If they are 35km apart (on a straight track) how long does it take before they meet?

Which of the following scientists did not contribute scientific discoveries to physical science? A) Isaac Newton B) Marie Curie C) Gregor Mendel

Select the correct answer. A body travels 10 meters during the first 5 seconds of its travel, and it travels a total of 30 meters over the first 10 seconds of its travel. What Its average speed during the time from t = 5 seconds to t = 10 seconds? A.

In your own words, what is an electrical current?

Why are chemicals and hot objects never placed directly on the balance pan?

A grocery shopper tosses a (n) 8.5 kg bag of rice into a stationary 17.7 kg grocery cart. The bag hits the cart with a horizontal speed of 6.9 m/s toward the front of the cart. What is the final speed of the cart and bag? Answer in units of m/s.

Resistance or opposite to a force refers to a

In tae-kwon-do, a hand is slammed down onto a target at a speed of 10.5 m/s and comes to a stop during the 2.13 ms collision. Assume that during the impact the hand is independent of the arm and has a mass of 0.400 kg.

If you looked at the frequently spectrums of two friends saying the word dog, would they look the same or different ?

Which of the following atoms has the smallest radius? The Periodic Table

When do centromeres split