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3 years ago

Explain how a common housecat gets “worms.”explain(science)

Physics

1 answer:

Brilliant_brown [7]3 years ago

8 0

Answer:

Ingenstion

Explanation:

The most common tapeworms that infect cats worldwide are Dipylidium caninum and Taenia taeniaeformis. Dipylidium caninum is transmitted to cats by fleas. The immature fleas larvae ingest the eggs of the worm, but infection is then passed on to a cat when it swallows an infected flea during grooming.

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what is the property of an object due to its mass by which it resists any change in its position unless overcome by force ?

UkoKoshka [18]

Answer:

Mass as a Measure of the Amount of Inertia

All objects resist changes in their state of motion. All objects have this tendency - they have inertia.

Explanation:

hope this helps

5 0

3 years ago

The temperature of a heat engine is 500 K. Some of the heat generated by the engine flows to the surroundings, which are

Naddik [55]

Answer:

The efficiency of the engine is 75% under given conditions.

<u>Explanation: </u>

<em>Efficiency is defined as the ratio of work done by the engine to the total heat supplied to a heat engine</em>. We know work done by the heat engine be difference between total heat supplied $\left(Q_{h}\right)$ by total heat utilized $\left(Q_{c}\right)$ . We can derive formula for efficiency by considering the above factors, $\text { efficiency }=\frac{\text { work done }}{\text { heat suplied }}=\frac{Q_{h}-Q_{c}}{Q_{h}}=1-\frac{Q_{c}}{Q_{h}}=1-\frac{T_{1}}{T_{2}} \therefore \text { efficiency }=1-\frac{T_{1}}{T_{2}}$

Now consider a heat engine is at a temperature of 500K and the heat produced by the engine released to the surroundings at a temperature of 125K. The efficiency is calculated by using the above formula, $\text { efficiency }=1-\frac{T_{1}}{T_{2}}=1-\frac{125}{500}=1-0.25=0.75$

∴ Efficiency of the engine is 75%

8 0

3 years ago

When unpolarized light is incident on a sheet of polarizing material with a transmission axis oriented vertically, what percenta

yulyashka [42]

Answer:

If the light were incident upon two polarizers at right angles, no light would get thru - thus each polarizer must block 50% of the light.

One polarizer would allow 50% of the light to pass.

4 0

2 years ago

Under some circumstances, a star can collapse into an extremely dense object made mostly of neutrons and called a neutron star.

Andrews [41]

Answer:

The question is incomplete however this kind of questions about determinate the angular speed and taking a reference of days rotating the first star.

w=0.11312 rad/s

Explanation:

The situation is about a two star the question is incomplete, miss the time rotate one star so we assume the first star rotated once in 30 days so:

Angular momentum

$P_{m}=I*w$

The inertia

$I=\frac{3}{5}*m*r^2$

The momentum must be conserved so

$P_{m1}=P_{m2}$

$I_{1}*w_{1}=I_{2}*w_{2}$

$\frac{2}{5}*m*r_{1}^2*w_{1}=\frac{2}{5}*m*r_{2}^2*w_{2}$

notice don't have to know the mass or use the density however at the end can determinate

$w_{2}=\frac{r_{1}*w_{1}}{r_{2}}$

Time can determinate the frequency so determinate angular speed of the first star

$w_{1}=2\pi*f_{1}$

$t_{1}=30days*\frac{24hr}{1day}*\frac{60minute}{1hr}*\frac{60s}{1minute}=2592000s$

$f_{1}=\frac{1}{t_{1}}=\frac{1}{2592000}=3.858x10^-7Hz$

$w_{1}=2.424x10^{-6}\frac{rad}{s}$

$w_{2}=\frac{7.0x10^8m}{15x10^3m}*2592000$

$w_{2}=0.11312 rad/s$

4 0

3 years ago

Does thermal energy flow from warmer objects to cooler objects

jolli1 [7]

Answer:yes

Explanation:

Thermal energy is the sum of all kinetic and potential energy in a substance. He is the thermal energy that flows from a warmer object to a cooler object.

8 0

3 years ago

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