What you wrote in the space under the question is correct, but
you can go a lot farther than that.
The question gives you the mass of the object, and enough information
to calculate its volume.
So go on from where you left off ... take the formula you wrote (correctly),
plug in the numbers for mass and volume, and find the density. You can do it !
because that is the right equation
Calculate them and you will know why the correct answer is D
Answer:
Yes
Explanation:
I've done plenty of research by hitting myself repeatedly. It does hurt after awhile.
Would be a. since KE = 1/2 m*v^2
Answer:
The acceleration of the rattlesnake, a = 126 m/s²
Explanation:
Given,
The initial velocity of the rattlesnake, u = 1.0 m/s
The final velocity of the rattlesnake, v = 20.0 m/s
The time duration to reach the final velocity, t = 0.15 s
The acceleration of a body defined as the rate of change of velocity by time, or simply the difference of final velocity and initial velocity by time.
The formula for acceleration is
a = (v-u)/t m/s²
Substituting the values in the above equation
a = (20 - 1.0 ) / 0.15
= 126 m/s²
Hence, the acceleration of the rattlesnake is, a = 126 m/s²