All categories

3 years ago

Help quick! Plz dont add an answer if you dont know

Physics

1 answer:

Bezzdna [24]3 years ago

8 0

Answer:

One reason is the positioning of the earth on its axis. The sun doesn't hit where we live in winter because we are pushed upwards more so we don't get the suns heat. The sun goes down earlier... so we don't have as much sunlight.

In winter the sun is father away from earth and in Summer it is closer...

Explanation:

You might be interested in

A bat, flying at 7.00 m/s toward a wall, emits a chirp at 50.0 kHz. If the wall reflects this sound pulse, what is the frequency

777dan777 [17]

Answer:

Explanation:

Given

Velocity of bat $v_o=7\ m/s$

Frequency of sound $f=50\ kHz$

velocity of sound $v=340\ m/s$

using Doppler Effect apparent frequency is given by

$f'=f\cdot \frac{v-v_o}{v+v_s}$

where

$f'=$ apparent frequency

v=velocity of sound in the given media

$v_s=$ velocity of source

$v_o=$ velocity of observer

here velocity of source is zero

as source is travelling towards source thus

$f'=50\cdot (\frac{340+7}{340})$

$f'=51.029\ Hz$

3 0

3 years ago

HELP ASAP!<br> Everything on screenshot.

kompoz [17]

Answer:

I believe the answer is sea floor spreading

8 0

4 years ago

The density of helium gas at 0.0 ◦C is 0.16 kg/m3 kg/m3. The temperature is then raised to 100.6 ◦C, but the pressure is kept co

Svetach [21]

Answer:

0.11694 kg/m³

Explanation:

T₁ = 0.0 °C = 273.15 K

ρ₁ = Density = 0.16 kg/m³

T₂ = 100.6 °C = 373.72 °C

PV = mRT

Realtion with density

$Pm=\rho RT\\\Rightarrow \rho =\frac{Pm}{RT}\\\Rightarrow \rho T= \frac{Pm}{R}$

P, m and R are constants, so

$\rho_1 T_1=\rho_2 T_2\\\Rightarrow \rho_2=\frac{\rho_1 T_1}{T_2}\\\Rightarrow \rho_2=\frac{0.16\times 273.15}{373.72}\\\Rightarrow \rho_2=0.11694\ kg/m^3$

∴ New density of the gas is 0.11694 kg/m³

6 0

4 years ago

DUE TODAY BEST ANSWER GET BRAINLIE

SCORPION-xisa [38]

Kinetic energy decreases if either the mass or the velocity of the object decreases or if both decrease. and Kinetic energy increases if either the mass or the velocity of the object increases or if both increase.

Explanation:

6 0

3 years ago

Explain how pressure can be used to<br> change the state of matter

mestny [16]

Answer:

Physical conditions like temperature and pressure affect state of matter. ... When the pressure exerted on a substance increases, it can cause the substance to condense. Decreasing pressure can cause it to vaporize. For some types of rock, decreasing pressure can also cause them to melt.

7 0

3 years ago