Voyager 1 space probe transmits to Earth at a frequency of 6.2 GHz. At some point the intensity of the wave was I = 2.95e-25 W / m2.
a) What will be the intensity of the wave at half the distance from the space probe?

b) What is the wavelength of the transmitted signal?

If the power of the sun is 3.87e + 26 W.

c) At what distance from the sun, the radiation intensity will be 0.393 W / m2?

e) If we consider the previous distance as the Voyager 1 distance to the earth. And that the power of the antenna is 18 W. What will be the intensity of the wave transmitted by Voyager 1 that reaches the earth?

f) How many times farther is the Voyager 1 probe from the beginning of the problem?

Need a,b,c,d,e and f. Thanks!

Members of the astronomy club just posted an article about the discovery of a small comet which orbit is in the same orbit plane as the Earth. In the article it is reported that the observation took place when the comet was eclipsed by the sun just passing the aphelion, in a relative distance at that moment of 3.82 UA and an orbit with eccentricity of e=0.777.

They are calling you to form part of the group of immediate reaction to determine if the comet is a risck to planet Earth. Do the calculation.

Windows 10 Inside Out:

In the Search box on the Taskbar, type WordPad and press “Enter”.

Type some text into WordPad.

A) What keyboard shortcuts would you use to select all of this text and copy it to the Clipboard? (See Table 3-2 on page 103.)

B) Go the end of the text in WordPad. What keyboard shortcut would you use to paste what you copied into WordPad?

C) What keyboard shortcut would you use to Undo what you just pasted into WordPad?

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How would you change the primary mouse button to right?

Adjust the size of text in the Display setting.

What size did you decide works best for you?

calculate the doppler shift in the frequency of photon traveling along y axis with respect to moving observer along x axis with velocity v ,explain brielfy how does doppler effect of light in relativistic approach differ from non relativistic approach .

1.Describe the two-step process by which extrinsic semiconductors are created by doping impurities into intrinsic semiconductors.

2.Compare and contrast the two mechanisms of atomic diffusion and comment on which of these occurs more rapidly and why it occurs more rapidly.

I have two Biophysical chem questions that I have no idea how to get the answer. Please help and show work. Thank you.

1. The unit millimeters of mercury (mmHg) has been replaced by the unit torr: 1mmHg is defined as the pressure at the base of a column of mercury exactly 1 mm high when its density is 13.5951 g/cm³ and the acceleration of free fall is 9.806 m/s². What is the relation between the two units?

The answer to this question is 1.000 000 143 Torr.

2. Use the Maxwell distribution of speeds to find an expression for the most probable speed of molecules of molar mass M at a temperature T. Hint: look for the maximum in the Maxwell distribution (the maximum occurs as df/ds = 0).

The answer to this question is c= (2RT/M)^(1/2)

1. In the Reggio Emilia Approach, the teacher is a/n ____ of learning rather than the dictator of what will be learned, when it will be learned and for how long the topic will be explored.

A. Observer

B. Initiator

C. Contributor

D. Facilitator

2. Informal assessments are the best described as

A. planned, pre made assessments developed for a specific purpose.

B. Unreliable observation that only appropriate in infant and toddler settings.

C. scheduled observations used to gather data in preschool settings.

D. nonstandardized forms of assessment used to gather information on childrens behaviors and characteristics.

3. Without effective assessment methods, teachers have no documented proof of childrens specific ____ and _____.

A. Wants, needs

B. Culture, heritage

C. Likes, dislikes

D. strengths, weaknesses

4. According to the Creative Curriculum model, the _____ sets the context for teaching and learning

A. structure of the classroom

B. children

C. Centers used in the classroom

D. teacher

5.The creative Curriculum classroom should include all of the following indoor interest areas except

A. art, library, discovery, computers

B. mechanical, free play, and guided movement.

C. blocks, dramatic play, toys and games

D. sand and water, music and movment, cooking

6. The creative curriculum model claims to be guided by all of the following researchers except

A. Maria Montessori

B. Jean Piaget

C. Howard Gardner

D. Erik Erikson

A projectile is launched horizontally with an initial speed of v0 = 38.5 m/s at the top of a cliff in a lake (h = 80 m) What is the speed of the projectile when its height from the water is y = 30 m?

Carlos takes a 16 kg bag of ice at -5 ∘C from a freezer and puts it in the back of his truck. Unfortunately, he forgets about it and the ice melts.

How much heat energy did it take to melt the ice completely? The specific heat of ice is 2090 J/(kg⋅K) and its heat of transformation from solid to liquid is 3.33×1053.33×105 J/kg

A curve of radius 69 m is banked for a design speed of 80 km/h . if the coefficient of static friction is 0.33 (wet pavement) at what range of speeds can a car safely make the curve?

what are advantages and diadvantages of eddy current?

A 5ft tall 50kg gymnast is walking along a 7m long solid wooden beam supported but two legs on either side set 1m from the ends. If she is carrying a hollow metal cylinder of uniform density 2.7 g/cm3 and 1m length under her arm such that 20% of its length is in front of her center of mass how close to the edge can she walk before equilibrium is lost? The inner radius of the cylinder is 3cm and the outer radius is 7cm.

I need to calculate if I'm going to gain or lose weight in next 6 moths,based on energy intake and consumption. Which formulas do I need to use?

A 900-kg car traveling east at 20.0 m/s collides with a 750-kg car traveling north at 15.o m/s. The cars stick together. Assume that any otherunbalanced forces are negligible. (Draw Diagrams)

(a) What is the speed of the wreckage just after the collision?

(b) In what directions does the wreckage move just after the collision?

(c) What is the total Kinetick Energy before the collision?

(d) What is the total Kinetic Energy after?