If and object accelerates from rest, with a constant acceleration of 5.4m/s2, what will its velocity be after 28s

Ms. Hidalgo opens the door to her classroom. Her classroom is 60 degrees and the air outside is 80. Predict what will happen using your knowledge of how heat flows.

Did the universe begin as matter or energy

When a roller coaster climbs up a hill, its potential energy? Increases or Decreases or its zero

How far, and in what direction, should a cellist move her finger to adjust a string's tone from an out-of-tune 453 Hz to an in-tune 440 Hz? The string is 68.0 cm long, and the finger is 18.3 cm from the nut for the 453-Hz tone.

The charges that are free to move in a metallic conducting wire and that are responsible for the flow of electric current are

After creating a question and forming a hypothesis, what is the next step in the scientific method

Roger sees water balloons fall past his window. He notices that each balloon strikes the sidewalk 0.51 s after passing his window. Roger's room is on the second floor, 10 m above the sidewalk.

Which statements accurately describe the Doppler effect?

Describe how mass and distance affect gravitational force.

a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?