Answer:
26325 m\s
Explanation:
Data:
v = ?
f = 117 Hz
w = 225
Formula:
v = fw
Solution:
v = ( 117)(225)
v = 26325 m\s <em>A</em><em>n</em><em>s</em><em> </em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
Answer:
605 km
Explanation:
Hello
the same units of measure should be used, then
Step 1
convert 42 m/s ⇒ km/h
1 km =1000 m
1 h = 36000 sec
![42 \frac{m}{s}*\frac{1\ km}{1000\ m}=0.042\ \frac{km}{s}\\ 0.042\ \frac{km}{s}\\](https://tex.z-dn.net/?f=42%20%5Cfrac%7Bm%7D%7Bs%7D%2A%5Cfrac%7B1%5C%20km%7D%7B1000%5C%20m%7D%3D0.042%5C%20%5Cfrac%7Bkm%7D%7Bs%7D%5C%5C%200.042%5C%20%5Cfrac%7Bkm%7D%7Bs%7D%5C%5C)
![0.042\ \frac{km}{s}*\frac{3600\ s}{1\ h} =151.2 \frac{km}{h}\\ \\Velocity =151.2\ \frac{km}{h}](https://tex.z-dn.net/?f=0.042%5C%20%5Cfrac%7Bkm%7D%7Bs%7D%2A%5Cfrac%7B3600%5C%20s%7D%7B1%5C%20h%7D%20%3D151.2%20%5Cfrac%7Bkm%7D%7Bh%7D%5C%5C%20%5C%5CVelocity%20%3D151.2%5C%20%5Cfrac%7Bkm%7D%7Bh%7D)
Step 2
find kilometers traveled after 4 hours
![V=\frac{s}{t}\\ \\](https://tex.z-dn.net/?f=V%3D%5Cfrac%7Bs%7D%7Bt%7D%5C%5C%20%5C%5C)
V,velocity
s, distance traveled
t. time
now, isolating s
![V=\frac{s}{t} \\s=V * t\\](https://tex.z-dn.net/?f=V%3D%5Cfrac%7Bs%7D%7Bt%7D%20%5C%5Cs%3DV%20%2A%20t%5C%5C)
and replacing
![s=V * t\\s=151.2\frac{km}{h}*4 hours\\ s=604.8 km\\](https://tex.z-dn.net/?f=s%3DV%20%2A%20t%5C%5Cs%3D151.2%5Cfrac%7Bkm%7D%7Bh%7D%2A4%20hours%5C%5C%20s%3D604.8%20km%5C%5C)
S=604.8 Km
Have a great day
Input heat, Qin = 4 x 10⁵ J
Output heat, Qout = 3.5 x 10⁵ J
From the first Law of thermodynamics, obtain useful work performed as
W = Qin - Qout
= 0.5 x 10⁵ J
By definition, the efficiency is
η = W/Qin
= 100*(0.5 x 10⁵/4 x 10⁵)
= 12.5%
Answer: The efficiency is 12.5%
Answer:
the average force exerted on the ball by the bat is 11,613.27 N
Explanation:
Given;
mass of the baseball, m = 151 g = 0.151 kg
initial velocity of the baseball, u = 39.5 m/s
final velocity of the baseball, v = 45.1 m/s
time of action, t = 1.10 ms = 1.10 x 10⁻³ s
The average force exerted on the ball by the bat is calculate as;
Therefore, the average force exerted on the ball by the bat is 11,613.27 N
Answer: Examples of nonrenewable resources include crude oil, natural gas, coal, and uranium. These are all resources that are processed into products that can be used commercially. For example, the fossil fuel industry extracts crude oil from the ground and converts it to gasoline.