The amount of energy needed to change the phase of a substance is given by

Q: A hair dryer uses 120 V and generates 1875 W.  The resistance in the hair dryer is _____ Ohms.

A: Given: Power (P) = 1875 WVoltage (V) = 120 V

Q: 1. When you lift a book from the ground to your desk, what kind of work do you do, negative or posit...

A: The energy stored in the object due to its position above the ground or reference level, the energy ...

Q: It's All Uphill Conditons for this trial are shown below. Click the Run Trial button to collect data...

A: Draw the free body diagram as below. Here, m is the mass, d is the displacement, g is the accelerat...

Q: 3. To help workers in your project site move dozens of equipment weighing 60 kgs to a height of 2.2m...

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Q: A vector has a horizontal component of -11 and vertical component of 51, what is the magnitude of th...

A: Given data:  Vector A has  Horizontal component (Ax) = -11 Vertical component (Ay) = 51 Required:  T...

Q: A wire of length 0.50m passes over a square magnetic field (0.75m per side) at a speed of 10m/s. The...

A: length of wire (L) = 0.50 m square over which the magnetic field is present = 0.75 m per side speed ...

Q: Question 4 refers to a horizontal massless rope attached to a 23.0 kg box on a horizontal surface as...

A: NOTE: According to the guidelines, we can only solve one question per post. Please post other questi...

Q: help walk me through this question? A vendor at the local art fair ties her tent to the concrete-fi...

A: We know that we have given a concrete filled coffee can show in the figure in the coffee can is conn...

Q: Humans should avoid prolonged exposure to electric fields greater than 614 N/C. At a point where E =...

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Q: 4. The speed for vehicles is typically given in reference to the medium it travels on or through. Fo...

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Q: xplain why an inverted image is seen under a compound microscope.

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Q: For plane progressive waves of height 6 m and length 200 m in deep water, find: a. the phase velocit...

A: In this question we have to answer questions related to plane progressive waves. Please give positiv...

Q: 12 kg skg If Ø =30° and taking g=10 m/s^2. Find the tension of the cable. T=Blank 1 N

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Q: A wave traveling 77m/s has a wavelength of 2.6 m.  What is the frequency of the wave in Hz? _______...

A: Given:  Wavelength (λ) = 2.6m Wave speed (v) = 77 m/s Asked: Frequency (f) ?

Q: A baseball is hit 4 ft above the ground and leaves the bat with an initial speed of 98 ft/s at an an...

A: r→t=r0→+u→t+12g→t2

Q: An open pipe with a length of 0.5 m produces waves with a speed of 350 m/s Fill in the blank. Hz. Th...

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Q: An object is shot upwards from ground level with an initial velocity of 3 meters per second; its sub...

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Q: The a-t curve for a particle having rectilinear motion is shown in the figure. At t=0, the velocity ...

A: Given a(t)=7 for 0≤t<5, mt+n for 5≤t<8, pt+q for 8≤t<10   Since a(5)=7 a(8) = -6 (from left...

Q: (II) The force on a particle, acting along the x axis, varies as shown in Fig. 7–24. Determine the w...

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Q: Given by mass and volume, which of the folloving equation would be best to use to find the density o...

A: Given data:  Mass (m) and volume (V) Required: Equation used to find out density of any fluid 

Q: A car is traveling from rest and attained a speed of 72m/s covering a total of 200m along the path. ...

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Q: A camera has a lens diameter of 0.0444 m. What wavelength of light IN NANOMETERS must it use to reso...

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Q: Why does a man with a large belly or a woman in her last trimester of pregnancy tend to lean backwar...

A: They mainly lean backward to balance their centre of mass.

Q: * Circuit Construction Kit: DC Success Confirmation of Questico x f Facebook x| b Bing Building Seri...

A: Req = R1+R2+R3 = 1+10+5 = 10 Ohm 

Q: A basketball is thrown across the court and covers a distance of 26 meters in only 4 seconds. What i...

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Q: There are many similarities between an image formed using a converging (concave) mirror and an image...

A: Given To compare the similarities and differences between the image formed by concave mirror and and...

Q: Which of the following cases (if any) requires the GREATEST amount of heat? In each case, the materi...

A: Given data:  For a meterial  Mass and rise in temperature is given  Needed:  Which required the grea...

Q: truck traveling at 40.84 m/s skids to a stop in 2.43 s. Determine the skidding distance of the car. ...

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Q: 9. A boy slides down a hill on a sled (total mass of 35 kg) and coasts onto a flat plain with a spee...

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Q: Which statement is incorrect about gases, liquids, and solids? O Gases and liquids flow so they are ...

A: Required: Incorrect statement about the gases, liquids and solids 

Q: the standard speed of sound in normal room temperature 334m/s 344m/s 433m/s 434m/s this refe...

A: Speed of sound is the distance travelled by sound in 1 sec . This depends on the temperature of the ...

Q: The axis shown in Fig 1-5 has the following constants vx=1vx=1 m/s. m=1m=1 kg r=500r=500 mm 12=1000l...

A: Since there is no acceleration in x direction, moving frame is still inertial , the pendulum will os...

Q: 5 moles of an ideal gas expands from 3L to 8L at a constant temperature of 300K. a) What is the chan...

A: Since the temperature is constant throughout the ideal gas expansion.  So change in internal energy ...

Q: The parachute on a drag racing car deploys at the end of a run. If the car has a mass of 900 kg and ...

A: Given mass of car m = 900 kg initial speed of car u = 35.0 m/s distance d = 1000 m  

Q: Vhat is the net force acting on Q1 if the charges are as -500 nanocoulomb; Q3 = 750 nanocoulomb. The...

A: We know that we have three charges that are  Q1= 500nC ,Q2= -500 nC and Q3= 750 nC  The distance bet...

Q: The body of a snorkeler swimming in salt water has a resistance of about 585 2. If the snorkeler is ...

A: Given data:  Voltage (V) = 5.00×102 V Resistance (R) = 585 Ω Required: Current (I) and Power (P)

Q: 5) What is the distance the lower spring is extended from its unstretched length? cm Submit 6) Final...

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Q: Given that a particles motion is described by the position function x(t) = (1.64)t2 + (-0.05)t5 + (-...

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Q: The sun emits white light, and yet we have all noticed that it looks a bit yellow/red when you see i...

A: When white sunlight ( composed of all the seven colours ) reaches our earth and strikes the atmosphe...

Q: A parallel plate capacitor is connected to a 5 V battery until the battery is fully charged. The dis...

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Q: If the length of second pendulum is increased by 21%. How many oscillations it will lose per day (B)...

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Q: true or false. I- The speed of light in vacuum is a universal constant, whose value (without uncert...

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Q: he acceleration of a car is given by a = [ (3t^3 + 4t)i  + 6tj + (8t – 5)k ] m/s^2.  Determine the m...

A: Given: The acceleration of the object is  a=3t3+ti+6tj+8t-5k m/s2                                   ...

Q: An African swallow carrying a very small coconut is flying horizontally with a speed of 18.0 m/s. I...

A: Answer:-  Given  Initial Speed (u) = 0 m/s  Final Speed (V) = 18.0 m/s  Height (H) = - 34.5 m  Accel...

Q: H20 has a much higher latent heat of vaporization than latent heat of fusion. Therefore, Ice at 0° C...

A: Let,  latent heat of fusion is Lf and latent heat of vaporization is Lv. Let, the mass of ice is m. ...

Q: An object with mass m, = 3.40 kg, rests on a frictionless horizontal table and is connected to a cab...

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Q: 3. The Earth moves in an almost perfectly uniform circular orbit with the Sun at its center, 1.5 x 1...

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Q: (3) Determine the acceleration and tension in the Atwood Machine. (Assume frictionless Surface) F = ...

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Q: On a test​ flight, during the landing of the space​ shuttle, the ship was 386 ft above the end of th...

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Q: You throw a bunch of water balloons off the roof of your building. You throw each water balloon with...

A: We know that  here we throw a bunch of water balloons off the roof of your building. You throw each ...