Answer:
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Answer:
<em>Timing Belts </em>are components of internal combustion engines sinchronizing the handles and cranks rotation with the camshaft when operating its valves.
Internal combustion systems such as the ones found in cars for example, need a method to get the heat away from the system; the mechanical device set for that purpose is the <em>water pump</em>, which pushes coolant over the radiator, the hoses and engine block; that <em>water pump </em>is generally joint with the crankshaft pulley through those <em>timing belts</em>. Thereyby (A.)
Explanation:
Answer:
a
The mass is
b
The velocity is
Explanation:
From the question we are told that
The speed of the protons is
The mass of the protons is
The speed of the rebounding protons are
The negative sign shows that it is moving in the opposite direction
Now according to the law of energy conservation mass of one nucleus of the unknown element. is mathematically represented as
Where is the mass of a single proton
So substituting values
The mass of on proton is
So
Now according to the law of linear momentum conservation the speed of the unknown nucleus immediately after such a collision is mathematically evaluated as
Now because before collision the the nucleus was at rest
So
=>
Recall that
So
=>
substituting values
Answer:
20% of the human body float above the surface in the dead sea.
Explanation:
Given data,
The human density after inhaling, d₁ = 945 kg/m³
The human density after exhaling, d₂ = 1020 kg/m³
Therefore the average human density, d = 982.5 kg/m³
The density of the dead sea, D = 1230 kg/m³
The percentage of density of human body to the dead sea is,
P % = (982.5 / 1230) x 100 %
= 80 %
Therefore, the human body has 80% of dead sea density.
Hence, 20% of the human body float above the surface in the dead sea.
Answer:
139.4 N
Explanation:
from the question we are given the following
distance (s) = 1 m
time (t) = 1.7 s
power (p) = 82 W
force (f) = ?
we can get the force by applying the formula below
power = work done / time
where work done = force x distance
therefore power = (force x distance ) / time
82 = (f x 1) / 1.7
f = (82 x 1.7) / 1 = 139.4 N