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3 years ago

Which statement would be true about a water molecule if it has a linear shape

Physics

1 answer:

mihalych1998 [28]3 years ago

5 0

It would be easily bond with other water molecules.

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A Ferris wheel has a diameter of 60 m and a period of rotation of 70 s. A passenger weighs 500 N. What is her apparent weight at

andrew11 [14]

Answer:

Explanation:

Hopefully this helps.

8 0

3 years ago

Suppose the electrostatic force between two electrons is F. What is the electrostatic force between an electron and a proton

mars1129 [50]

Answer:

D. −F

Explanation:

the rest of the answers are

2/3F

The force is represented as a positive quantity and is repulsive.

Electrostatic force is inversely proportional to the square of the distance.

The direction of the force changes, and the magnitude of the force quadruples.

hope this helps sorry if i was too late! :)

8 0

3 years ago

Suppose you stand with one foot on ceramic flooring and one on a wool carpet, making contact over a 77.2 cm2 area with each foot

Finger [1]

Answer:

$P_{c$ = 5.74W

$P_{w}$ =0.27 W

Explanation:

d= 2.6cm =>0.026m (for both the ceramic and the carpet )

Thermal conductivity of wool ' $k_{w}$ '= $k_{carpet}$ = $k_{wool}$ = 0.04J/(sm °C)

Thermal conducticity of carpet ' $k_c}$ ' = 0.84 J/(sm °C)

Area 'A'= $A_{carpet}$ = $A_{ceramic}$ = 77.2cm²=> 77.2 x $10^{-4}$ m²

$T_h}$ =33.0°C

$T_c}$ =10.0°C

Average Power $P_{avg}$ is determined by dividing amount of energy'Q' by time taken for the transfer't':

$P_{avg}$ = Q/Δt

Due to conductivity, heat of flow rate will be P= dQ/dt

P= $\frac{dQ}{dt}$ = $\frac{kA[T_{h}-T_{c} ]}{d}$

For CERAMIC:

$P_{c$ = $\frac{k_{c} A[T_{h}-T_{c} ]}{d}$ => [0.84 x 77.2 x $10^{-4}$ (33-10) ]/0.026

$P_{c$ = 5.74W

For WOOL CARPET:

$P_{w}$ = $\frac{k_{w} A[T_{h}-T_{c} ]}{d}$ => [0.04 x 77.2 x $10^{-4}$ (33-10) ]/0.026

$P_{w}$ =0.27 W

8 0

3 years ago

After landing aeroplanes momentum becomes 0. Explain how the law of conservation holds here.

Otrada [13]

Answer:

4 the best for ur next movie update and the other side is baar namaste

Explanation:

Reyeyyrygafsbrv namaste Dada ji namaste Dada and you are not coming today to meet u in a while back and forth in the film is about a year 6

3 6 3 7 namaste Dada ji ka kya haal namaste namaste

6 0

3 years ago

A champion athlete can produce one horsepower (746 W) for a short period of time. If a 70-kg athlete were to bicycle to the summ

Sindrei [870]

Answer:

343000 J

Explanation:

P = Power produced by champion = 756 W

h = height gained by the athlete = 500 m

m = mass of the athlete = 70 kg

E = Least amount of energy

Least amount of energy is same as the potential energy gained , So using conservation of energy

Energy spent by athlete = Gravitational potential energy

$E = mgh$

E = (70) (9.8) (500)

E = 343000 J

6 0

3 years ago