Salutations!
When fossil fuels are burnt, what 2 gases are given off?
When fossil fuels are burnt, the following are one of the two gases when they are given off:
→ Carbon dioxide: Carbon dioxide is a green house gas, and plays a major role in the global warming.
→ Carbon Monoxide: Carbon monoxide is a gas that is dangerous to human beings when released.
Hope I helped (:
Have a great day!
Answer:
25N
Explanation:
formula=> Frictional force= coefficient of friction x normal reaction
normal reaction is mass x gravity(10N/kg)
so Frictional force= 0.5x5x10
=25N
but that is the Frictional force not the constant force
to get the constant force, subtract the Frictional force from the weight of the block
weight= mass x gravity
= 5x10
= 50N
50N-25N
=25N
Answer:
Explanation:
As we projected the balloon at speed vo at an angle of 29 degree
so the two component of velocity is given as
now we know that in x direction we have
in y direction we have
now we have
Given data :
Velocity of radar
signal, v = Velocity of light = 3 x 10^8 m/s
Greatest distance
between Venus and Earth d1 = 0.47 AU = 0.47 AU (a.5 x 10^11 m / 1 AU) =
7.1x10^10 m
Closest distance between
Venus and Earth, d2 = 0.28 AU = 0.28 AU (1.5 x 10^11 m / 1 AU)= 4.2 x 10^10 m
The time take by radar signal
to travel from Earth to Venus and back when Venus is brightest is calculated as
T1 = 2d1/v = 2(7.a x
10^10 m / 3 x10^8 m/s) = 473 s
The time taken by radar
signal to travel from Earth to Venus and back when Venus is closest is
calculated as
<span>T2 = 2d1/v = 2 (4.2 x
10^10 m) / 3 x 10^8 m/s = 280 s</span>
Weather can be forecasted (meterologists) , climate can be forecasted scientists use computer programs called climate models. sorry im not sure about the other ones though :) Good luck on your assignments!
