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Nadya [2.5K]
3 years ago
10

Explain why we have seasons on earth?

Physics
1 answer:
almond37 [142]3 years ago
5 0
It’s because of the tilt of the earth’s axis, it means that w he n the earth leans towards the sun it’s summer, when it leans away from the sun it’s winter and in between the 2 spring and autumn (fall) occur.
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Kenitic Energy (KE)<br> 1.doubled
astra-53 [7]

Answer:

mass

Explanation:

This energy of motion is what we call kinetic energy. ... In fact, kinetic energy is directly proportional to mass: if you double the mass, then you double the kinetic energy. Second, the faster something is moving, the greater the force it is capable of exerting and the greater energy it possesses.

pls make as brainlieast

3 0
3 years ago
A trough is filled with a liquid of density 835 kg/m3. The ends of the trough are equilateral triangles with sides 4 m long and
Allushta [10]

Answer:

F=523712 N

Explanation:

density=mass/volume

and shape is cubic so

volume=(4)^3

volume=64 m^3

mass=835*64

mass=53440 Kg

Hydrostatic force=53440*9.8=523712 N

4 0
4 years ago
a crane lifts a 75 kg mass at a height of 8m. calculate the gravitational potential energy gained by the mass (g= 10N)
Leno4ka [110]

Answer:

6000 J

Explanation:

Potential energy = mass*gravity*height (U = m*g*h)

In this case g = 10 so

U = 75*10*8 = 6000 J (joules) [kg * m^2/s^2]

7 0
3 years ago
How often must you check the temperature of food that is being held with temperature control?.
loris [4]

You need to check the temperature of food being stored in a temperature-controlled environment every four hours. The process of changing a space's temperature is called temperature control.

Cooking food alone may not be enough to avoid food poisoning, though, if the bacteria in food are allowed to grow to large numbers. When the temperature is between 5°C and 63°C, bacteria can grow. The risk zone is the range between 5°C and 63°C.

Temperature control is a process where the passage of heat energy into or out of a space or substance is adjusted to achieve the desired temperature. This process involves measuring or otherwise detecting changes in the temperature of the space (and all of the objects contained therein) or of the substance.

Learn more about temperature here

brainly.com/question/11244611

#SPJ4

6 0
1 year ago
A 2.0-Coulomb bead is given 20 Joules of electric potential energy by lifting it from the "ground" to point A. If a second bead
Katen [24]

Answer:

40 J

Explanation:

c_1 = 4 C

c_2 = 2 C

U_1 = 20 J

The potential energy is directly proportional to the charge of the particle

U\propto c

\dfrac{U_2}{U_1}=\dfrac{c_2}{c_1}\\\Rightarrow U_2=\dfrac{U_1c_2}{c_1}\\\Rightarrow U_2=\dfrac{20\times 4}{2}\\\Rightarrow U_2=40\ J

The potential energy expected is 40 J

4 0
3 years ago
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