2. Suppose that the velocity of an object at time t seconds is 3t2 - Vt +3+ 2. At t = 0, the position of the object is 7m. What is the position of the object 8 seconds later?

Q: 2. A 35 kg child is riding on a swing. At her highest point she is 1.8 m above the ground, at her…

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Q: 15. R 전자석은 저항과 직렬로 연결된 인덕터로 생각할 수 있다. 유도 계수 L=12.0 H 와 저항 R-4.00 요 울 가진 큰 전자석이 24.0 V의 배터리와 스위치에 그림과…

A: Write the variables with the given values.

Q: Find the y-component a force, 120N, acting 45 degrees to the right of the negative y-axis.

A: Given data:  Force (F) = 120 N Angle (θ) = 45° to the right the negative y-axis Required: The…

Q: 2. A person decides to swim across a river 84 m wide that has a current moving with a velocity of…

A: According to guideline I solve only first 3 subparts of question 2.

Q: the magnetic field is 1.0 x 105 T. 3. Two parallel wire carrying current of 20.0 A are separated by…

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Q: 4. A cannon is pointed upward at an angleof 30 degrees with respect to the horizontal ground. If the…

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Q: Problem 8: Suppose you have a 8.6 cm diameter fire hose with a 3.2 cm diameter nozzle. Part (a)…

A: Given parameters are, Diameter of fire hose = 8.6 cm Then Radius of fire hose,  r1 = 4.3×10-2m…

Q: 1. Why are several readings taken for each physical quantity? 2. A single reading taken with a meter…

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Q: Electrical energy is converted into thermal energy in a resistor at the rate of 5 watts for 1…

A: Given, Electrical energy is converted into thermal energy in a resistor at the rate of 5 watts per…

Q: 4. Coulomb's law and Newton's law of gravitation are similar in structure. Can Gauss's law be…

A: Yes ,we can use Gauss law for Gravitational field.

Q: Above. 20. Estimate the wavelength at which the Sun emits the most light. Assume that the average…

A: Temperature (T) = 5800 k

Q: 4. Fret if a 1 is increased three times and qz is reduced to 2 : 5. Fnet if g2 is increased three…

A: Given data: The net force between two charges is given as, Fnet = 500 N Formula used: According to…

Q: ACTIVITY 3: PROBLEM SOLVING Directions: Solve the following problems. Express your final answers in…

A: #3 Given data: The horizontal component of velocity is vH=25 m/s. The time taken in the journey is…

Q: 2. Find kinetic energy of dart leaving gun: 11.4891 m/s 2 DnoI 1 ond anlit

A: To calculate the kinetic energy we use,                           Potential energy= Kinetic…

Q: 7. Comparing the two cases below with different axis of rotation, we can say that m -R- 2R = 2MR2 =…

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Q: 1. N Find the magnitude of the vector B = - 2.00f + 3.00ĵ – 4.00k.

A: B→=-2.00j^+3.00j^-4.00k^=1.00j^-4.00k^B→=1.002+-4.002=4.12

Q: 3) A proton enters a magnetic field of 10T and an electric field of 2000 N/C in such a way that it…

A: Moving particle is proton  Charge on proton (e) = 1.6×10-19 C  Magnetic field (B)= 10 Tesla…

Q: Find the angle between A = 10a + 2a, and B 4a, + 0.5a¸ , using dot product. y y 3 Answer:

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Q: If each wire in #4 is connected to an identical battery, what is the relationship of the electric…

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Q: 3) Is there any kind of material that when inserted between parallel plate capacitors would reduce…

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Q: 4. What is the rate of heat transfer by radiation, with an unclothed person standing in a dark room…

A: Given, Ambient Temperature =24°C Skin temperature =32°C Surface Area =1.6 m2. Emissivity of skin…

Q: Find the force(F) on a 10µC charge at (1,1,3)m if four like charges of 200µC are located on thex and…

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Q: and velocity as the fil impulse identical to in problem 31. Howe designed to crumple

A: Given as, Average force= 1.23×107 NS, Time interval= 21.0 ms=21×10-3s, Interaction duration= 57.1…

Q: The curve surface represented by AB in the figure is the surface of the quadrant of a circular…

A: Given The quadrant of a circular cylinder 3 m long r = 1.5 m , z = 0 Determine the horizontal and…

Q: (1) A student claims that capacitors in parallel combinations have greater equivalent capacitance…

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Q: 3. If a car is traveling at 20 meters per second in a straight line, how many meters will it take…

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Q: 18. BIO A certain orthodontist uses a wire brace to align a patient's crooked tooth as in Figure…

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Q: Problem 8: Penny is adjusting the position of a stand up piano of mass m, = 220 kg in her living…

A: Part (a) Minimum force Fs is, Fs,min=Ffr2=μsmpg2

Q: An angle of a circle with a 2 m radius is A0 = 20°. What is the corresponding arc length As? 11. D.…

A: 11. radius of circle,r=2 m∆θ=20

Q: . A massless spring of equilibrium length b and spring constant k connects two particles of masses…

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Q: 2. Three point charges q; = +2.7µC, q2 = -3.4µC and q3 = -1.6µC initialy are infinitely far apart.…

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Q: 1.A motorboat was moving E 20° S] at 50.0 km/h. The operator then turned the boat E 20° N] and…

A: 50kmph E 20° S  30kmph E 20° N  East and West as X axis  North and South as Y axis  T= 5min

Q: 2. A solid sphere of radius R-40 cm has a total positive charge of 26 µC uniformly distributed…

A: Given: radius R =40 cm =0.4 mcharge q = 26μC = 26*10-6 C

Q: 8. From Ampere's law, it can be shown that the magnetic field B inside a long solenoid is B = HonI…

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Q: (5) A 15.0A current produces a B field at the center of an arc of angle n/4 radians and radius…

A: (5) Given Current (I) = 15.0 A Radius (r)  = 0.500 m Angle θ  = π4 radians

Q: magnetic field generated at the center of the ring! 2. Two circular coils are concentric and lie on…

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Q: Stooge problem hints Summary of info: m= 15 g; k=22 N/cm; x=3 cm; Ay=-1.4 m; 0=-19° 1. Calculate…

A: Given, m=15 gk=22 N/cmθ=190

Q: A 19th century lab technician is testing possible metals for bulb filaments. A carbon filament with…

A: Given: In this question, the given details are, A 19th century lab technician is testing possible…

Q: 5. If an electrically neutral object is induced and acquire 10 positive charge. How many electrons…

A: 5. Given that, An electrically neutral object is induced and acquires 10 positive charges.  We need…

Q: mass 5. A billiard ball moving with a speed 5m/fee collides head-on with a second ball of equal at…

A: Given Mass of cart-1 = m1 = 0.350 kg Mass of cart-2 = m2 = 0.50 kg Initial velocity of cart-1 = u1 =…

Q: 1. 2. The parallel plates of an air capacitor are separated by 2.25 mm. Each plate carries a charge…

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

Q: 8. An electron with a horizontal speed of 4.7 x 10° m/s passes through two horizontal plates, as…

A: Part(a) calculate the vertical component of the electron's final velocity. Part(b) Calculate the…