I think one hour, sorry if i'm wrong
Answer: 29.17m/s^2
Explanation:
Given the following :
Velocity = 525 m/s
Time = 18 seconds
Acceleration = change in Velocity with time
Using the motion equation:
v = u + at
Where v = final Velocity
u = Initial Velocity and t = time
Plugging our values
525 = 0 + a × 18
525 = 18(a)
a = 525 / 18
a = 29.166666
a = 29.17 m/s^2
Answer:
See explaination
Explanation:
a) We will simply need a STOPWATCH
b) Just let the pendulum to swing 10 times, record the time and then divide it by 10, we have the time period of the pendulum. Then frequency can be found as
f = 1/T
c) As per the time period equation for simple pendulum, we can change the length of pendulum easily to vary the frequency
d) The temperature of room would slightly increase because mechanical energy will convert to thermal energy
e) Period will increase because with increase in temperature, metal will expand and longer pendulum will have more period.
Below is the solution:
Heat soda=heat melon
<span>m1*cp1*(t-t1)=m2*cp2*(t2-t); cp2=cpwater </span>
<span>12*0.35*3800*(t-5)=6.5*4200*(27-t) </span>
<span>15960(t-5)=27300(27-t) </span>
<span>15960t-136500=737100-27300t </span>
<span>43260t=873600 </span>
<span>t=873600/43260 </span>
<span>t=20.19 deg celcius</span>
Answer:
b) Theorem of equipartition of energy
Explanation:
The equipartition theorem states that energy is shared equally amongst all energetically accessible degrees of freedom of a system.
think of it as another way of saying that a system will generally try to maximise its entropy by distributing the available energy evenly amongst all the accessible modes of motion.