As you brake your bicycle, your velocity changes from 20 east m/s to 10 east m/s in 5 seconds.

What is your acceleration?

Which of the following statements is the best definition of weather? Weather is the current conditions in the atmosphere. Weather is the usual conditions in the atmosphere. Weather is the average conditions in the atmosphere.

Does fire use energy?

220V is applied to two different conductors made of the same material. One conductor is twice as long and twice as thick as the second. What is the ratio of the power transformed in the first relative to the second?

When sunlight strikes oil on the surface of water, a variety of colors are observed. What is the best explanation for this observation? A) Oil reflects the light and the lens of our eyes break it into component colors.

Why did the color of the peppered moth change?

What is wind or wind currents? I'm on that subject and don't get what it is. for the subject, I chose "Physics" because I don't know what it was. Is this subject physics?

An aircraft with a landing speed of 295 km/h lands on an aircraft carrier with a landing area 205 m long. Find the minimum constant deceleration require for a safe landing.

What is the formula for calculating wave speed?

Where is the error in this sentence? A great place to visit on a sunny afternoon is Golden Gate park in San Francisco.

a family backpacking at Yosemite national park took 5 hours to climb a mountain trail 7.5 km long. what was the family's average speed