All categories

3 years ago

The contribution of Tycho Brahe was primarily his

1 answer:

mihalych1998 [28]3 years ago

3 0

Tycho Brahe ( 1546 - 1601 ) was a Danish astronomer known for his accurate astronomical and planetary observations. Tycho tried to produce a model with the best of both Ptolemy ( earth-centered solar system ) and Copernicus ( sun-centered solar system ).
Answer: B ) observation.

You might be interested in

A 5 kg mass is oscillating on a spring with a time period of 2.8 seconds. What is the spring constant k of the spring?

katrin [286]

Answer:

Explanation:

<u>Simple Harmonic Oscillator</u>

It consists of a weight attached to one end of a spring being allowed to move forth and back.

If m is the mass of the weight and k is the constant of the spring, the period of the oscillation is given by:

$\displaystyle T=2\pi {\sqrt {\frac {m}{k}}}$

If the period is known, we can find the value of the constant by solving for k:

$\displaystyle k=m\left(\frac{2\pi}{T}\right)^2$

Substituting the given values m=5 Kg and T=2.8 seconds:

$\displaystyle k=5 \left(\frac{2\pi}{2.8}\right)^2$

k = 25.18 N/m

5 0

3 years ago

Cross section of a solid circular rod is subject to a torque of t = 2.7 kn⋅m . if the diameter of the rod is d = 8 cm , what is

polet [3.4K]

Shear Stress= Force along the tangent/ Area
= 2700/π*r^2
=2700/3.14*16
=54

3 0

3 years ago

Periodic waves spread out over the surface of a lake where two women, Jenny and Melissa, are fishing in separate boats 46 meters

Tatiana [17]

Answer:

The wavelength of the water is $\lambda = 10.22 m$

Explanation:

From the question awe are told that

The distance between the two boats are 46 m

Now we are told that a the time the Jenny's boat is at a crest,Melissa's boat is at its lowest point, and there are 4 additional crests between them which can be mathematically represented as

Number of wavelength = 4 + 0.5(this accounts for the difference in position crest and lowest point)

= 4.5

Now the wavelength of the water is $\lambda = \frac{Distance }{Number \ of \ division }$

$= \frac{46}{4.5} =10.22m$

8 0

3 years ago

What is the volume? density is 1g/mL or 1.0g/cm3 and mass 6g

trapecia [35]

Answer:

6cm^3

Explanation:

$6g\frac{1cm^{3} }{1.0g} = 6cm^{3}$

8 0

3 years ago

It is a cool winter evening, and you are feelinga little chilled. To warm yourself up, you sipsome warm tea. As you swallow, you

frosja888 [35]

Answer:

The tea is warming up us is because of process of convection.

Explanation:

The conduction is the process in which the heat transfers within the material like heating up metal rod.

The radiation can be defined transfer of energy from body in the form of particles or wave like radiation from nuclear bomb.

The convection is the process of heat transfer by the movement of warm gas or liquid in which warm air rise and cool air sink.

Here when tea when we swallow tea the motion of molecules in the tea rise and there is transfer of heat.

6 0

3 years ago