Wherever a river loses energy
The energy required to raise the temperature of the air in a room by 5.0°C is 336 kJ
U = m ΔT
U = Energy
= Specific heat
m = Mass
ΔT = Change in temperature
ρ = Density
V = Volume
ρ = 1000 g / m³ (Dry air )
= 1 J / g K
ΔT = 5 °C
V = 4 * 4 * 3
V = 48 m³
m = ρ V
m = 1000 * 48
m = 48000 g
U = 1 * 48000 * 7
U = 336000 J
U = 336 kJ
Therefore, the energy required to raise the temperature of the air in a room by 5.0°C is 336 kJ
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Explanation:
Given that,
Initial length of simple pendulum,
Initial time period,
We need to find the length of the simple pendulum when the period is exactly 1 second.
We know that the time period of simple pendulum is given by :
Put all values and find L₂
So, the length of the pendulum with a period of exactly one second is 25 cm.
In SBc galaxies, both the arms and the bar are highly resolved into star clouds and stellar associations. The arms are open in form and can start either at the ends of the bar or tangent to a ring.
<h3>Is the Milky Way a SBc galaxy?</h3>
Originally thought to be a hubble type Sb or Sc (Sbc), astronomers now believe that the Milky Way is has a central bar and is therefore a loosely wound, barred spiral galaxy – Hubble type SBbc.
<h3>What is the difference between an SBc galaxy and an Sc galaxy?</h3>
Sa (and SBa) galaxy types have tightly wound arms and large central bulges.
Sc's (and SBc's) have loosely wound arms and a small central bulge.
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Answer: force from sun to mars = , force from mars to sun =
Explanation: The force of attraction or repulsion between 2 object ( in this case the sun and mars ) in space is given by newton's law of gravitation which is given mathematically below as
where
G = gravitational constant, = mass of mars, = mass of sun
the mars also exerts the same magnitude of force above on the sun but in the opposite direction, thus the force mars exerts on the sun is