Answer:
(75)(8.5)cos(28)=562.879J
Explanation:
W=Fdcos(theta)
Solution:
To calculate the pressure ratio for a sound for measuring sound, we use the following logarithmic formula of Sound Pressure Level (SPL):
SPL = 
where,
p = pressure to be measured
= reference pressure
= 
= 
pressure ratio is :
= 
Answer:
150.5 m
Explanation:
The motion of the car is a uniformly accelerated motion, so we can use the following suvat equation to find the displacement:

where
s is the displacement
u is the initial velocity
t is the time
a is the acceleration
For the car in this problem,
u = 0

Substituting t = 8.9 s, we find the displacement of the car at that time:

<span>The Convection
currents is a Currents of heat that radiate to the Earth's crust and Caused by
the core. Core is hotter than the mantle
and made of iron which convection currents move the plates is hot stuff up cold
sinks, and its hotness makes the mushrooms reproduce. </span>
What You Need:
Metal spoon
30 inches of kite string (40 inches for an adult)
What You Do:
Tie the handle of the spoon at the midpoint of the string.
Wrap the ends of the string around your index fingers (pointer fingers)
Place your fingers in your ears.
Lean over so that spoon hangs freely and swing the spoon so it taps against a door.
Hit the door again, this time harder.
<span> and you can hear it as a bell ( may be church bell sometimes )</span>