Q: The hydrogen spectrum has a red line at 656 nm and a violet line at 434 nm. What angular separation…
A: Given that,the hydrogen spectrum has a red line at = 656 nm and a violet line at = 434 nm. What…
Q: A Carnot refrigerator operates with an efficiency n = 0.66666666666667 between a hot reservoir at…
A:
Q: Compute the frequency (in MHz) of an EM wave with a wavelength of 1.3 in. (0.0330 m). MHz
A: Wavelength of the EM wave is or Note:Speed of light is Find:Frequency of the EM wave.
Q: PROBLEM 4 A heat pump is used to meet the heating requirements of a house and maintain it at…
A: To calculate the net power input required by the heat pump (a):Net Power Input (kW) = Heat Output…
Q: Find the heat flow during 300 minutes through a glass window of thickness 0.15 inches with that is 7…
A:
Q: A person starts walking from home and walks: 3 miles East 2 miles Southeast 3 miles South 2 miles…
A:
Q: A car starts from rest and travels for 5.0s with a uniformacceleration of 1.5m/s2. The driver then…
A:
Q: Two cables are joined at A and loaded as shown. Determine the forces in cables AB and AC. B60° A…
A:
Q: A concave mirror with a focal length of 46 cm produces an image whose distance from the mirror is…
A:
Q: A robot of mass 24 kg is moving to the left at a constant 3 m/s. 1. What is its momentum? 2. What…
A:
Q: An electron moving with a speed of 2.7 x 105 m/s in the negative y direction experiences zero…
A: Magnetic force on an electron is zero when the electron is moving along a negative y direction. It…
Q: a) A rigid, uniform rod has a length L and a weight of 200 N. An object weighing 300 N h from the…
A: Weight of rod, Weight of the rod hanging from the left end of the rod at L/3…
Q: A 700.0 g block ice at -20 °C is brought into thermal contact with 10.0 g of water at 0 °C in an…
A: Since the system is adiabatic (no heat exchange with the surroundings) and at constant pressure, the…
Q: A pair of closely spaced slits is illuminated with 608.0-nm light in a Young's double-slit…
A: Minimum thickness of the glass plate when dark fringe formed at the centre is:…
Q: Question A3 A car of mass 800 kg moves to the east with a speed of 20 m-s-¹. It collides with a…
A:
Q: While painting the top of an antenna 215 m in height, a worker accidentally lets a 1.00 L water…
A:
Q: An electron and a proton each have kinetic energy equal to 50 keV. (a) What are their de Broglie…
A: Given electron and proton each have equal kinetic energy K.Ee=K.EP=50 keVWe know mass of electron,…
Q: Problem 15: The wavelengths of visible light range from 400 to 700 nm. Part (a) What is the…
A:
Q: A spacecraft flies past Earth at a speed approaching the speed of light. One of the creatures on…
A: A spacecraft flies past Earth at a speed approaching the speed of light. One of the creatures on…
Q: In a parallel universe, the value of Planck's constant is 6.63x10-² J.s. Assume that the physical…
A:
Q: Q.10: Uniform electric and magnetic fields Ē = E2 and B = Ex are present everywhere. If at t = 0,…
A:
Q: Which of the following events/impacts could be expected to affect Earth less than an hour after a…
A:
Q: At one instant, force F = 1.61 N acts on a 0.215 kg object that has position vector 7 = (8.77î –…
A:
Q: A circular loop of wire and a long-straight wire carry currents of I1=3A and I2=5A, as shown. The…
A:
Q: From t = 0 to t = 4.23 min, a man stands still, and from t = 4.23 min to t = 8.46 min, he walks…
A:
Q: On a frictionless horizontal table, two blocks (A of mass 3.00 kg and B of mass 5.00 kg) are pressed…
A:
Q: Three identical capacitors, each of capacitance 3.0 µF, are connected in a circuit with a 12 V…
A: Capacitance of each capacitor Voltage of the battery
Q: Two cables are joined at A and loaded as shown. Determine the forces in cables AB and AC. B 60° 80kg…
A:
Q: na пь nc
A: When a light ray travels from a denser medium( larger refractive index) to a rarer medium (smaller…
Q: The figure below shows a series RLC circuit with a 24.0-2 resistor, a 470.0-mH inductor, and a…
A:
Q: A block of mass m is on an inclined ramp. The ramp makes an angle θ with respect to the horizontal,…
A:
Q: Problem 9: Consider an electromagnetic wave with a peak electric field strength of 150 V/m. omized…
A: Electric field, E = 150 V/mAverage intensity, I = ?
Q: An LC circuit is built with a 50 m H inductor and an 12.0 pF capacitor. The capacitor voltage has…
A:
Q: At a site where the Earth's magnetic field has a magnitude of 0.59 gauss (where 1 gauss = 1.00 x…
A:
Q: The moticn of a ball scooped bya field hockus player can be moeleled by n=-16b^(2)+40b where b is…
A:
Q: An object with a height of -0.060 m points below the principal axis (it is inverted) and is 0.110 m…
A: Height of object h1 = -0.060 mDistance of object u = 0.110 mFocal length of lens f = -0.35 mLet…
Q: Q38. What are the advantages of optic fibers?
A: The technique that sends information as light pulses along a glass or plastic fibre is known as…
Q: A block of mass m is on an inclined ramp. The ramp makes an angle θ with respect to the horizontal,…
A:
Q: A person is to be fitted with bifocals. She can see clearly when the object is between 32.6 cm and…
A:
Q: Astronomers often use large mirrors in their telescopes to gather as much light as possible from…
A: Telescopes are the optical instruments used to see distant objects.
Q: A step-down transformer produces a voltage of 7.0 V across the secondary coil when the voltage…
A: Initial secondary coil voltage of the step-down transformer Initial primary coil voltage of the…
Q: A rectangle loop of sides a and b carries a counter-clock-wise current I, and is placed in a uniform…
A:
Q: Two slits separated by 0.030 mm are illuminated with green light (λ = 630 nm). Calculate the…
A: Slit separation, d = 0.030 mm = 3×10-5 mWavelength, λ = 630 nmScreen distance, D = 1.2 m N = 7
Q: Given the vector V = -3 ax + 2 ay, the unit vector av is: O a. av = -0.83 ax + 0.55 ay O b. av =…
A:
Q: An object with a height of 2.54 cm is placed 36.3 mm to the left of a lens with a focal length of…
A: Given:The focal length of the lens is 35 mm.The distance of the object from the lens is 36.3 mm.The…
Q: A converging lens has a focal length of 95.0 cm. Locate the images for the following object…
A: The focal length of the converging lens is The expression for the lens formula is shown…
Q: Consider electromagnetic waves in free space. What is the wavelength of a wave that has the…
A: (a) Frequency, f = 4.74×1011 Hz(b) Frequency, f = 7.52×1016 HzWe have to find wavelength of wave.
Q: The nonreflective coating on a camera lens with an index of refraction of 1.31 is designed to…
A: Solution:Given:n1 = refractive index of air = 1.00n2 = refractive index of thin film coating = 1.31…
Q: An LC circuit is built with a 40 mH inductor and an 16.0 pF capacitor. The capacitor voltage has its…
A:
Q: How to revise for Physics? - revision methods
A: First of all we make three list of chapter. like asfirst list - all chapter of your book or…
Describe two different methods used to estimate the speed of a CME. Differentiate between the two techniques.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- (a) Use the distance and velocity data in Figure 3.64 to find the rate of expansion as a function of distance. (b) If you extrapolate back in time, how long ago would all of the galaxies have been at approximately the same position? The two parts of this problem give you some idea of how the Hubble constant for universal expansion and the time back to the Big Bang are determined, respectively. Figure 3.64 Five galaxies on a straight line, showing their distances and velocities relative to the Milky Way (MW) Galaxy. The distances are in millions of light years (Mly), where a light year is the distance light travels in one year. The velocities are nearly proportional to the distances. The sizes of the galaxies are greatly exaggerated; an average galaxy is about 0.1 MlY across.Explain why, when defining the length of a rod, it is necessary to specify that the positions of the ends of the rod are to be measured simultaneously.Convert 13.7 billion yeans (the age of the Universe) to the appropriate SI unit. Be sure to report your answer with the correct number of significant figures.
- Of the following, the longest is a a. 1.2 miles b. 1610m c. 63350 Inches d. 1760 yards 2 The maximum speed in SLEX is 100 km/H. How many miles will you travel per minute? 3. You are doing a project by mixing some concrete, and you've calculated according to the directions that you need six gallons of water for your mix. If you use the two-liter empty bottle of soda to measure your water, how many times will you need to fill it? 4. The density of seawater is 62.8 pounds/feet. How much is this density in kg/m³ 5. You want to check if the gold ring that your fiancée gave you is a "real gold". Upon weighing. the mass of the ring is 9.5 grams and using the water displacement method to determine the volume, and it overflow 0.6 mL. What is the density of your gold ring? Is the ring a real gold? Accepted density of gold is 19300 kg/m³.2 Given that 1 treky is equal to 7.08 x 10 yards. How many Gm are there in 81.0 treky? Report your answer to 3 significant figures. (NOTE: A treky is a fictitious unit of length, the other units are actual units of length.) Type your answer....Write an explanation or narration about the given problem why the problem got these answers shown in the photos. Narrate the solution in the given picture below. The narration must include the following parts: 1. Dissect the problem by explaining the illustration 2. Identify the given variables and the required ones 3. Explain the solution 4. Double check the solution by explaining why the values makes sense or using another way to verify the answer. Problem: (The answer to this question is in the given picture) A rolling ball moves from x1 = 3.4 cm to X2 = -4.2 cm during the time from t; = 3.0 s to t2 = 6.1 s. What is its average velocity? Ans. 0.78 cm/s
- Write an explanation or narration about the given problem why the problem got these answers shown in the photos. Narrate the solution in the given picture below. The narration must include the following parts: 1. Dissect the problem by explaining the illustration 2. Identify the given variables and the required ones 3. Explain the solution 4. Double check the solution by explaining why the values makes sense or using another way to verify the answer. Problem: (The answer to this question is in the given picture) When a 58-g tennis ball is served, it accelerates from rest to a speed of 45 m/s. The impact with the racket gives the ball a constant acceleration over a distance of 44 cm. What is the magnitude of the net force acting on the ball?Write an explanation or narration about the given problem why the problem got these answers shown in the photos. Narrate the solution in the given picture below. The narration must include the following parts: 1. Dissect the problem by explaining the illustration 2. Identify the given variables and the required ones 3. Explain the solution 4. Double check the solution by explaining why the values makes sense or using another way to verify the answer. Problem: (The answer to this question is in the given picture) 1. A car travels to the east at a constant 50 km/h for 100 km. It then speeds up to 100 km/h and is driven another 100 km. a. How long did the car took to travel 100 km at a speed of 50 km/h? Ans. 2.0 h b. What is the car’s average velocity during the time interval? Ans. 67 km/h (E]Write an explanation or narration about the given problem why the problem got these answers shown in the photos. Narrate the solution in the given picture below. The narration must include the following parts: 1. Dissect the problem by explaining the illustration 2. Identify the given variables and the required ones 3. Explain the solution 4. Double check the solution by explaining why the values makes sense or using another way to verify the answer. Problem: (The answer to this question is in the given picture) A person with a black belt in karate has a fist that has a mass of 0.70 kg. Starting from rest, this fist attains a velocity of 8.0 m/s in 0.15 s. What is the magnitude of the average net force applied to the fist to achieve this level of performance?
- Page 3 of 8 4. Lin went ice-skating and tracked his distance using a motion detector. Calculate the rate of change by analyzing the differences in the y-values and the differences in the x-values in the table. Calculate the rate of change again using the graph of Lin's skate. Explain why your answers make sense. Skater's Distance from Motion D12. DETAILS PREVIOUS ANSWERS OSCOLPHYS2016 1,3.P.015. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Suppose that a person has an average heart rate of 98.4 beats/min. (Express your answers to problems in this section to the correct number of significant figures and proper units.) (a) How many beats does he or she have in 4.0 y? 4.0 X Your answer cannot be understood or graded. More Information beats (b) How many beats does he or she have in 4.00 y? 4.0 Check the number of significant figures. More Information. beats (9) How many beats does he or she have in 4.000 y? 4.0 Check the number of significant figures. More Information. beats Enter a number with the correct number of significant figures.a. Use the formula for general solution to solve the following equation b. Check for your answer. Show all the necessary steps. Dy/dt - 7y = 21
