All categories

2 years ago

Science question: How do humans use the magnetic field for navigation?

Physics

1 answer:

I am Lyosha [343]2 years ago

4 0

Answer:

Magnetoreception (also magnetoception) is a sense which allows an organism to detect a magnetic field to perceive direction, altitude, or location. This sensory modality is used by a range of animals for orientation and navigation, and as a method for animals to develop regional maps.

Explanation:

You might be interested in

Convection is the rising of

Ad libitum [116K]

Since the outer plumage of the penguin can resist the flow of heat in the cold antarctic air they might gain a little of this heat to keep them warm by thermal convection.

<u>Explanation:</u>

Convection is the circular movement that happens when hot air/liquid moves with molecules that were fast, making it less dense rises while the cold air/liquid drops down.

Also, they follow the technique of standing together always in a group which further helps them to decrease the loss of heat between them.

The plumage of penguin provides 80 percent of total insulation and is highly resistant to wind penetration.

8 0

2 years ago

What happens to the standing wave frequencies if you quadruple the tension in the string?

kramer

Answer:

. A standing wave on a string (fixed at both ends) has a fundamental frequency f. If you quadruple the tension in the string, how can you change the length of the string so that the fundamental frequency remains the same? ... double the length.

8 0

3 years ago

The burner on an electric stove has a power output of 2.0 kW. A 650 g stainless steel tea kettle is filled with 20∘C water and p

True [87]

Answer:

The value is $V = 900 \ cm^3$

Explanation:

From the question we are told that

The power output is $P_{out} = 2.0 \ kW = 2.0 *10^{3} \ W$

The mass of the steel is $m= 650 \ g = \frac{650}{1000} = 0.650 \ kg$

The temperature of the water is $T = 20^o C$

The time take is $t = 2.70 \ minutes = 2.70 *60 = 162 \ s$

Generally the quantity of heat energy given out by the electric stove is mathematically represented as

$Q = P * t$

=> $Q = 2.0 *10^{3} * 162$

=> $Q = 324000 \ J$

This energy can also be mathematically represented as

$Q = \Delta T * m c_s * + m_w * c_w * \Delta T$

Here $c_s$ is the specific heat of stainless steel with value $c_s = 450\ J/C/kg$

tex]c_s[/tex] is the specific heat of water with value $c_s = 4180\ J/C/kg$

m_w is the mass of water which is mathematically represented as

$m_w = \rho_w * V$

=> $m_w = 1000 * V$

$324000 = (100 -20 ) * 0.650 * 450 * + 1000V * 4180 * (100-20)$

$V = 0.0008989 \ m^3$

converting to $cm^3$

$V = 900 \ cm^3$

8 0

3 years ago

Professional research telescopes should be large enough to gather sufficient radiation from space. Which of these statements bes

Llana [10]

Answer:

Bigger lenses are easier to manufacture and they produce less distortion.

Explanation:

A reflecting telescope is best used as a professional research telescope because " Bigger lenses are easier to manufacture and they produce less distortion."

This is evident in the fact that the mirror of a reflecting telescope is simpler and inexpensive to be manufactured.

Also reflecting telescope is known not to support chromatic distortion, which often is a byproduct of dispersion.

6 0

2 years ago

Read 2 more answers

The energy of a certain charged capacitor is 7 J. What is the new energy stored in that capacitor if its charge is decreased to

poizon [28]

Answer:

The new energy is 1/16 of the original energy

Explanation:

A capacitor is an electric device which is able to store charge when it is connected to a power supply.

The energy stored in a capacitor is given by the equation