Momentum of an object is defined as product of mass and velocity
so it is given as

here it is given that
mass = 0.15 kg
momentum = 6 kg m/s
so by plug in values in the above equation



so its speed will be 40 m/s
Answer:
I only really know the "How do we use these EM waves in our lives?" part srry
Explanation:
EM waves are used to make sure you cellphone, radio, TV, and etc. have service/ connection.
Answer:
c) mutation and natural selection both cause changes in a population
Explanation:
Hope it help
Mark me as brainliest
Answer:
to see the beautiful world
to focus the light onto the retina
Answer:
The correct answer is part 'c' 160 dB
Explanation:
When noise levels of different intensities are superimposed the resultant intensity is given by the equation

where,
is the intensity of a general sound level
Since we have 10000 fans each producing sound of 80dB thus the resultant intensity is given using the above formula as

