I think you mean for those fractions to be multiplied.
In that case, you get
kg - m / sec² = Newton .
<h3><u>Answer;</u></h3>
B.A heat engine that uses work to move heat
<h3><u>Explanation;</u></h3>
- A heat engine involves a thermodynamic process that converts the heat supply in it into mechanical work.
- A heat engine makes use of the properties of thermodynamics to transform heat into work. Gasoline and diesel engines, jet engines, and steam turbines that generate electricity are all examples of heat engine
Answer:
160m/s
Explanation:
The speed of a wave is related to its frequency and wavelength, according to this equation:
v=f ×λ
Answer:
1800J
Explanation:
Step one:
given data
mass of bullet m= 3g= 0.03kg
initial velocity u = 400m/s
final velocity v= 200 m/s
Step two:
1.The bullet's lost kinetic energy went inside the tree.
2. The energy transferred is computed as
= initial KE- KE final
Initial KE= 1/2mu^2
Initial KE= 1/2*0.03*400^2
Initial KE= 1/2*0.03*160000
Initial KE= 1/2*4800
Initial KE= 2400J
KE final= 1/2mv^2
KE final= 1/2*0.03*200^2
KE final= 1/2*0.03*40000
KE final= 1/2*1200
KE final= 600J
KE transferred = 2400-600
KE transferred= 1800J
To compute for the heat,
needed to be absorbed or released, we need
where
is the mass of the alligator,
is the change in temperature, and
is the specific heat of the alligator's body. Plugging in all the information we have,
Recall that 1 Watt = 1 J/s, thus time needed to absorb radiation from the sun is
That means it takes 4250 seconds for the alligator to warm up to be able to absorb the radiation from the sun.
Answer: 4250 seconds
