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2 years ago

Which of the following terms describes the primary core of a comet?

Physics

1 answer:

Naddik [55]2 years ago

8 0

I would say that the nucleus is the best choice because it is the main solid part of the comet. Hope This Helped!

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The center of mass of a 0.30-kg (non-uniform) meter stick is located at its 45-cm mark. What is the magnitude of the torque (in

lbvjy [14]

Answer:

The magnitude of the torque due to gravity if it is supported at the 28-cm mark is 0.5 N-m.

Explanation:

Given that,

Mass of the meter stick, m = 0.3 kg

Center of mass is located at its 45 cm mark.

We need to find the magnitude of the torque due to gravity if it is supported at the 28-cm mark. Torque acting on the object is given by :

$\tau=r\times F\\\\\tau=(45-28)\times 10^{-2}\times 0.3\times 9.79\\\\\tau=0.499\ N-m$

$\tau=0.5\ N-m$

So, the magnitude of the torque due to gravity if it is supported at the 28-cm mark is 0.5 N-m.

6 0

2 years ago

What decibel reading corresponds to a pressure amplitude of 0.2 W/m^2?

horsena [70]

I = pressure amplitude given = 0.2 W/m²

dB = decibel reading

decibel reading from the pressure amplitude is given as

dB = 10 log₁₀ (I/10⁻¹²)

inserting the values in the above equation

dB = 10 log₁₀ (0.2/10⁻¹²)

dB = 10 log₁₀ (2 x 10⁻¹/10⁻¹²)

dB = 10 log₁₀ (2 x 10⁻¹.10¹²)

dB = 10 log₁₀ (2 x 10¹²⁻¹)

dB = 10 log₁₀ (2 x 10¹¹)

dB = 113.01 db

hence the decibel reading comes out to be 113.01 db

4 0

2 years ago

Which gland controls the workings of other endocrine glands? Thyroid, pituitary, adrenal, or thymus

oksano4ka [1.4K]

Answer is pituitary gland.

In order to stimulate or inhibit the hormones produced by the endocrine glands, signals are sent to these endocrine glands by the hormones secreted by the pituitary gland.

Consider the following example. When a person is stressed in order to stimulate the production of cortisol, the anterior pituitary lobe will release adrenocorticotropic hormone (ACTH).

8 0

2 years ago

Read 2 more answers

Time period of a simple pendulum if it makes 40 oscillations in 20 seconds.

Hunter-Best [27]

(20 sec)/(40 swings) = 0.5 sec/swing

5 0

2 years ago

A laser beam is incident at an angle of 30.2° to the vertical onto a solution of corn syrup in water. (a) If the beam is refract

mote1985 [20]

Answer:

a) n2 = 1.55