A. microscopes !!!!!!!!!!
Answer:
a.6.5025 J
b.6.5025 J
Explanation:
We are given that
Mass of pellet,m=0.27 g=
1 kg=1000 g
Spring constant,k=1800 N/m
x=8.5 cm=
1m=100 cm
a.Potential energy stored in the compressed spring is given by
P.E=


b.By using law of conservation of energy
P.E of spring=K.E of the pellet
K.E of the pellet=6.5025 J
Rod is 450mm and disk has a radius of 75mm So there is a pin holding the assembly upwards which is when Θ=0 and at the pin there is a torsional spring with constant of k=20N m/rad. One end of the rod is attached to the pin and the other is attached to the disk.
The amount of velocity and time in an object causes acceleration to increase or decrease.
Answer:
2.59 Kg, 3.25 Kg
Explanation:
Acceleration can be found using equation
where s is the release distance, a is acceleration and t is time
Making a the subject of the formula

Substituting 0.28 for s and time for 1 second

Acceleration formula for the Atwood machine is given by
where m1 and m2 are first and second masses respectively
Two situations are possible
When m1>m2
Assuming m1 is 3.7kg which is heavier than m2
Substituting a for
and m1 as 2.9Kg and taking acceleration due to gravity as
10.37m2=28.449-1.624
10.37m2=26.825
m2=2.59 Kg
<u>When m1<m2</u>
Then m1=2.9Kg hence


-9.25m2=-28.449-1.624=-30.073
9.25m2=30.073

m2=3.25 Kg