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RUDIKE [14]
3 years ago
9

You can fill a bucket from a downstairs tap quicker than upstairs tap.why?

Physics
1 answer:
Zinaida [17]3 years ago
5 0
For filling a bucket from a tap you entirly depend on pressure higher the ground more pressure is needed so slower the flow of water
You might be interested in
All Sections
Korolek [52]

Answer:

7.5 m/s2

Explanation:

F = ma

300 = 40 kg (a)

divide both sides by 40 to single out the variable a (acceleration)

300/40 = 7.5 m/s2

6 0
3 years ago
Which statements describe the results of the effect of angle of insolation on absorption experiment? Check all that apply.
lilavasa [31]

Answer:

At 6 minutes, the soil temperature at a 45° angle of insolation is higher than at 0°.

At 15 minutes, the soil temperature at a 90° angle of insolation is higher than at 45°

Explanation:

5 0
3 years ago
Read 2 more answers
How long does it take a rocket traveling at a constant velocity of 100 m/s to climb from 200m to 1200m
neonofarm [45]

Answer:

10 seconds

Explanation:

you multiply 100 by 10 in order to get 1000m

you add 200m to 1000m to get to the maximum of 1200m

since you travel at 100 per second, it took 10 seconds

7 0
3 years ago
A balloon filled with helium gas has an average density of rhob = 0.22 kg/m3. The density of the air is about rhoa = 1.23 kg/m3.
MissTica

Answer:

a=g\left(\frac{\rho_a}{\rho_b}-1\right)

45.03681 m/s²

Explanation:

F_b = Buoyant force

W = Weight of the balloon

\rho_a = Density of air = 1.23 kg/m³

\rho_b = Density of balloon = 0.22 kg/m³

v_a = Volume of air

v_b = Volume of balloon

F_b=\rho_av_bg

W=\rho_bv_bg

g = Acceleration due to gravity = 9.81 m/s²

The net force acting on the balloon is

F=F_b-W\\\Rightarrow F=\rho_av_bg-\rho_bv_bg\\\Rightarrow \rho_bv_ba=\rho_av_bg-\rho_bv_bg\\\Rightarrow \rho_bv_ba=v_bg(\rho_a-\rho_b)\\\Rightarrow a=\frac{g}{\rho_b}(\rho_a-\rho_b)\\\Rightarrow a=g\left(\frac{\rho_a}{\rho_b}-1\right)

The equation is a=g\left(\frac{\rho_a}{\rho_b}-1\right)

a=g\left(\frac{\rho_a}{\rho_b}-1\right)\\\Rightarrow a=9.81\times \left(\frac{1.23}{0.22}-1\right)\\\Rightarrow a=45.03681\ m/s^2

The acceleration of the balloon is 45.03681 m/s²

8 0
3 years ago
El extremo de una cuerda se mueve de tal manera que las partículas de la cuerda emplean 0.25 segundos para producir una vibració
insens350 [35]

Responder:

T = 0.25 segundos

f = 4 Hz

Explicación:

Paso uno:

datos dados

se nos dice que las partículas tardan 0,25 segundos en completar una vibración

por lo tanto, el período es de 0,25 segundos

¿Qué es un período de vibración?

Un período T es el tiempo necesario para que un ciclo completo de vibración pase por un punto determinado.

la expresión para el período se da a continuación.

T = 1 / f

¿Cuál es la frecuencia de vibración?

Básicamente, se refiere a la frecuencia con la que ocurren las vibraciones.

la frecuencia es una tasa, se expresa como la inversa del período

f = 1 / T

t = 1 / 0.25

f = 4 Hz

6 0
3 years ago
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