A train travels 57 kilometers in 3 hours, and then 87 kilometers in 2 hours. What is its average speed? km/hr

Electromagnetic technology becomes more advanced to fill ever more complex roles. Which of these is an application of electromagnets? A. car brake systems B. refrigerator coils C. speaker and microphone technology D. all of these

The average mass of a rhinoceros calf is 45 kg. What is its weight in newtons? Round your answer to the nearest whole number. A. 5N B. 45N C. 250 N D. 441 N I will mark brainliest for whoever gets this right in the first 5 min

If the voltage across a circuit of constant resistance is doubled, how is the current in the circuit affected?

A baseball travels 50 meters in 4 seconds what is the average velocity of the baseball?

The atomic number of a nucleus decreases during which nuclear reactions?

What can we say about the rock as it falls to Earth? A) It accelerates as it falls. B) It falls at a constant rate of speed. C) It is at a constant velocity as it falls. D) It accelerates until it reaches a peak velocity, then decelerates.

What is true about the nodes and antinodes of a standing wave?

A large truck loaded with scrap Stella weights 14 metric tons and is traveling north on the interstate heading for Chicago. It has been averaging 48km/h for the journey and has traveled over the 1450 km so far. It has just stopped to refuel.

Which interaction of nature binds neutrons and protons into nuclei? A. strong B. weak C. electromagnetic D. gravitational

Why does icing sugar dissolve more rapidly than granular sugar?