Acceleration due to gravity is about 9.8 m/s²
So after every second, the speed increase by 9.8 m/s
After 1 second, the object would fall at a speed of 9.8 m/s
After 2 seconds the object would fall at a speed of 19.6 m/s
So after 4 seconds, the object is going to be at a speed of:
9.8 x 4 = 39.2 m/s
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<u>Answer</u>
39.2 m/s
Answer:
Mechanical advantage=4
Explanation:
Load=1000N
Effort=250N
mechanical advantage=load/effort
Mechanical advantage=1000/250
Mechanical advantage=4
Answer:
Electromagnetic waves are transverse waves, similar to water waves in the ocean or the waves seen on a guitar string. This is as opposed to the compression waves of sound. As you learned in Wave Motion, all waves have amplitude, wavelength, velocity and frequency.Feb 15, 2016
Answer:
Average speed 
meter per second
Explanation:
Given
The total distance walked 
meters
The total time taken to walk 
meters is 
minutes
In one minute there are 
seconds
As we know Average speed is equal to total distance travelled divided by total time taken
Hence,
Average speed
meter per second
The reactants in a chemical reaction are the atoms prior to the chemical reaction, found on the left side of the equation (option D).
<h3>What are reactants in a chemical reaction?</h3>
A chemical reaction is a reaction typically involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.
In a chemical reaction, the atoms of substances called reactants are converted into substances called products.
Reactants are any of the participants present at the start of a chemical reaction. Reactants are present at the left hand side of a chemical reaction.
Therefore, reactants in a chemical reaction are the atoms prior to the chemical reaction, found on the left side of the equation.
Learn more about reactants at: brainly.com/question/17096236
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