What is the density of a substance of mass 140 g and volume 12 cm³.

Q: A flat coil with radius 8.0 mm has 50 loops of wire. It is placed in a magnetic field B = 0.30 T in…

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Q: It is observed that a photon must have an energy of at least 23 eV in order to excite a certain…

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Q: QUESTION 3 Impulse is a force O True O False

A: The answer is TRUE

Q: There are 2.54 cm per inch.  3.1 cm is the same distance as

A: Given, 2.54cm = 1 inch 1cm =1/2.54inch = 0.393inch

Q: From the figure below, the center of mass of three bodies of equal mass placed at the corners of the…

A: When two equal masses are placed at a distance then their Center of mass lies at the mid.

Q: Give me details and definitions and how it works of  Arduino Uno board RGB led Ultrasonic sensor…

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Q: An object, with mass 74 kg and speed 27 m/s relative to an observer, explodes into two pieces, one 3…

A: Mass of the less massive piece = m1  Mass of the more massive piece = m2  Total mass ( M ) = 74 kg…

Q: How can it be

A: Given data; When a boy weighing 20 kgf at one end of a 4 m long see-saw. How it can be brought to…

Q: Determine the momentum of a van having mass 128 kg moving with a velocity 18 m/s.

A: Introduction :  In this question we are provided it value of  mass and velocity.  With these data we…

Q: Kevin runs 450 metres in 54 seconds.work out his average speed

A: Introduction :  In this question we are provided it value of distance and time . With these data we…

Q: Which of the following statements is/are correct? A. The electric field intensity increases as the…

A: The electric field intensity is represented by the letter, E. Its unit is V/m. It is a vector…

Q: Two particles, with charges of 40.0 nC and -40.0 nC, are placed at the points with coordinates (0,…

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Q: (Just the answer of the two and three) 2. A car travels along a horseshoe-shaped road, it travels…

A: Disclaimer: “Since you have asked multiple question, we will solve the first question for you. If…

Q: QUESTION 7 A point mass held by the thread revolves around a fixed axis, and the tension of the…

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Q: Santa Claus tries to drag his bag of presents along a horizontal surface by a red rope that is…

A: Required  mass of beg.

Q: A 149.6-g sample of a metal at 74.4°C is added to 149.6 g H₂O at 15.4°C. The temperature of the…

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Q: Two charged particles lie on the x-axis as shown below. A particle with charge -4q−4q is located at…

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Q: A submarine emits a sonar pulse, which returns from an underwater cliff in 1.02 s. If the speed of…

A: time in which pulse returns(t)=1.02 s speed of sound in salt water(v)=1531 m/s time taken by pulse…

Q: What are the two forces that make a star stable, and using these two ideas, what Mummon happens in…

A: Asked: 1. What are the two forces which operate in the stars, which make them stable?  2. What…

Q: QUESTION 1 The standard unit of momentum and impulse is the N.s O True O False QUESTION 3 Impulse is…

A: Question 1 The stander unit of momentun and impulse is the N.s. its  true . We know impulse  N.s=…

Q: 5. For the following displacement functions describing simple harmonic mo- tion, identify the…

A: simple Harmonic motion.

Q: Which of the following statements is true? A sound wave will stop when it reaches the boundary or…

A: Sound waves requires medium to travel  .           Therefore , when sound wave travels through a…

Q: Light incident at 65 degree in air strikes a transparent material and produces reflected light that…

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Q: Figure 4. How to correctly measure the siba.. weight hanger carries the required added masses. M₁²…

A: Average force constant Kavg can be calculated by the below formula Kaverage…

Q: A batter hits a pitched ball at a height of 4.0 ft above the ground so that its angle of projection…

A: In this question we have to find whether the ball will clear the fence or not. Please give positive…

Q: What is the acceleration a force of 210 N exerted of mass 14 kg. produced by on an object

A: Introduction :   In this question we are provided it value of force and mass . With these data we…

Q: How does the frequency of the sound given by a stretched string depends on its, (a). Tension (b).…

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Q: Find the potential energy of 4 kg mass kept at height of 6 m. Take g = 10 m/s²

A: Introduction :  In this question we are provided it value of height , mass and acceleration due to…

Q: A particle of charge -0.8 µC is located at the end of a spring at some equilibrium position (left…

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Q: The potential difference across the terminals of a cell is 1.5 volts . It is connected with a…

A: Introduction :  In this question we are provided it value of potential difference and resistance .…

Q: The Compton effect has a clear indication The dual nature of radiation The wave nature of radiation…

A: The radiation was first considered a wave phenomena where the electric and magnetic fields oscillate…

Q: Find the ratio

A: Given data; Car running ata  speed of 15 km h-1Another similar car is moving at a speed of 45 km h-1…

Q: PLEASE DONT WRHITE IN HAND

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Q: labie TT 2. 3. Make the calculations to fill the empty cells in table # 2. Table # 2: Determination…

A: You can calculate T th by using the given formula  Tth=2πMKWhere the values of M and K are given in…

Q: A block A, whose weight is 100N, is pulled up a slope of length 5m by means of a constant force F…

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Q: bulb Calculate the time taken 34 w 10 consume 21.00 J of energy?

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Q: Calculate the value of force applied if work done is 268 J and displacement is 24 m.

A: Given Work done (W) = 268 J  Displacement (s) = 24 m    Work is given as :- W = F.s  Therefore ,…

Q: The area of the bottom of a tiffin box is 0.25 m² and weight is 50 N, Calculate the pressure exerted…

A: Solution:-

Q: A newly discovered planet orbits a distant star with the same mass as the Sun at an average distance…

A: Given that  Average distance = a = 122×109 m Time period of the planet's orbital period can be…

Q: Calculate the mobility of electrons [cm²/V.sec.] of n-type material having resistivity of 0.5 22- m.…

A: Number of donor, n = 3×1019 /m³ Resistivity, ρ = 0.5 Ω-m Mobility, μ = ?

Q: Consider silicon at T-300 k. A Hall Effect device is fabricated with the following parameters:…

A: in this question  we use electron carrier mobility equation.

Q: Shaina tied a 3.4 g rock to a 6.7 m rope and swung it around at a rate of 10.4 rad/s. Solve the…

A: Mass of the rock=3.4 g Length of the rope=6.7m

Q: 4. A 5.0-kg block moves in a straight line on a horizontal frictionless surface under the influence…

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Q: You are pulling your luggage at an air port for an international flight. You know not to pack too…

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Q: X-rays with a wavelength of 0.71° A scattered by a piece of carbon at a right angle, then analyzed…

A: We have an X-ray of wavelength λ=0.71 Ao=0.71×10-10m which is scattered by a carbon target at an…

Q: How much energy is gained by a box of mass 20 kg when a man (a) carrying the box waits for 5 minutes…

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Q: Calculate the amount of heat energy required to raise

A: Given data;  Calculate the amount of heat energy required. raise the temperature of 100 g copper,…

Q: the following equation refers to V-pendulum experiment T4 = (44 L k/g2)(8 m4L/g² )d, where : L:…

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Q: You are pulling your luggage in an air port for an international flight. You know not to pack too…

A: mass of luggage (m) = 21.4 kg force exerted (F) = 52 N angle = 25 degree above the horizontal…

Q: The coldest temperature ever recorded in Chicago was -27 degrees Fahrenheit on January 20, 1985.…

A: Convert the temperature into Celsius.