Answer:
That's essentially how objects in orbits work as they move closer to the body they orbit, they accelerate faster and faster. Our penny will get so fast that, once it comes around the planet, it will be flung very far away, which will then slow it down. This is what creates an elliptical orbit.
Explanation:
Answer:
0.2695/s
Explanation:
Using the formula for calculating impulse
Impulse = m(v-u) = Ft
M is the mass
v is the final velocity.
u is the initial velocity
F is the force
t is the time
Get the time;
t = m(v-u)/F
t = 0.0055(220)/40
t = 0.0275s
Get the speed of the rifle
v = u+gt.
v = 0+9.8(0.0275).
v = 0.2695m/s
Hence the speed of the rifle is 0.2695m/s
Answer:
The required power is 
Explanation:
From the question we are told that
The temperature of the water entering ice machine is 
The temperature of the water leaving is 
The COP of the ice machine is 
The production rate of an ice 
The energy that needs to removed from each lbm of water at 55 F is 
Generally the cooling load of the ice machine is mathematically represented as
=> 
Generally the COP of the ice machine is mathematically represented as
Here 
is the net power input needed to successfully run the ice machine
So
=> 
Converting to horsepower
=>
Answer: Atoms are electrically neutral because they have equal numbers of protons (positively charged) and electrons (negatively charged). If an atom gains or loses one or more electrons, it becomes an ion.
Answer:
We know that loudness is directly proportional to amplitude and SI unit of amplitude is Decibel So unit of loudness is decibel
