Which of the following statements is incorrect?     none of the choices     The gravitational force is always directed towards the center of the Earth.     The frictional force is always opposite the direction of motion or impending motion.     The tensile force exerted on an object always lies along the direction of the string, rope, or cable attached to the object.     The normal force is always perpendicular to the surface.

Q: A ball is thrown at 20.0 m/s at an angle of 65 degrees above the horizontal. The ball leaves the…

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Q: A 0.256kg plastic ball is tied to 1 end of a 0.85m long string and is swung in a horizontal circle.…

A: Given:- The mass of the plastic ball is m = 0.256 kg. The ball is tied to 1 end of an L = 0.85m long…

Q: When it comes to magnets, like poles... O don't interact. O attract. O repel.

A: Answer:

Q: How many 0.5W resistors, each of the same resistance, must be used to produce an equivalent 4.1 kΩ ,…

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Q: What is the diameter of Saturn

A: What is the diameter of saturn?

Q: A harpsichord string of length 1.50 m and linear mass density 25.0 mg/m vibrates at a fundamental…

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Q: 3. A student was blowing air into a closed tube and found that he produced 4 different sounds. Below…

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Q: The flux of neutrinos through the Earth is such that about 10¹1 pass through the area of a…

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Q: A potter's wheel with a moment of inertia of 0.1 kg-m² is spinning freely at 35.17 rpm. The potter…

A: in this question we determine mass in kg.

Q: A long straight wire carries a current of 51.3 A. An electron, traveling at 1.00 × 107 m/s, is 4.70…

A:

Q: Consider a conducting sphere with 5.2 * 10 ^19 extra electrons. 1. What is the charge on the sphere?…

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Q: The diagram below shows three different circuit combinations with identical resistors, R. What is…

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Q: What is the MAXIMUM (linear) speed at which a turntable (r=32.7 cm) can spin for a 54-gram mass NOT…

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Q: The position of a particle is given by the equation s(t)=10t^2−20/3 t^3−5/4 t^4+t^5 where t is…

A: Given The position of a particle is given by the equation s(t)=10t^2−20/3 t^3−5/4 t^4+t^5 where t is…

Q: Where x and y Potential energy of a particle of mass m in xy plane is expressed by:-U = (x²+x²) ²…

A: It is given that, the potential energy in the polar coordinate is:U=3222r232=3222r-3Hence, the force…

Q: Two small magnets each of magnetic moment 10 Am² are placed in end on position 0.1 m apart from…

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Q: What is the horizontal velocity of the golf ball before it hits the ground? O 21.00 m/s 5.25 m/s O…

A:

Q: A uniform electric field E= 3500 V/m exists within a certain region. What volume of space contains…

A: Given dataThe electric fielfd is E=3500V/mThe electrostatic energy is U=3×10-9J

Q: Y When the daughter nucleus produced in a radioactive decay is itself unstable, it will eventually…

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

Q: According to the law of magnetic poles       A)  magnetic poles in a bar magnet cancel each other…

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Q: Find the electric field at the location of qa using the figure below given that qb = qc = qd = +2.0…

A: Given, Side of square, a = 20.0 cm charge,  qb = qc = qd = +2.0 nCq = -1.0 nC

Q: How much gravitational potential energy (relative to the ground on which it is built) is stored in…

A: Given: The mass of the pyramid is 9x109 kg. The height of the center of mass of the pyramid is 42 m…

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A:

Q: When considering tangential motion (angular to linear motion), which point on an object has the…

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Q: A pair of computer-interfaced photogates can be used to accurately measure the time interval for an…

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Q: X 1m 25 kg 60° 6 m a uniform rod of length(1)=6m and mass(m)=66.2kg is connected by a hinge to a…

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Q: A. B. C. D. The current I, in amperes, flowing through an alternating circuit, at a time of t…

A: Given:- Current through the alternating circuit is I=30 sin(bt) Period of the function is T=125 s

Q: Starting at the point (4.57 m,0 m) on the x–y plane, a physics student runs around the origin…

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Q: A guitar with strings of length L = 0.61 m has new strings put on it. The low E string has a linear…

A:

Q: 1.0 m² 0.8c FIGURE 1 A 1.0 m² square flies past earth at a speed of 0.8c in FIGURE 1. Calculate the…

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Q: The position of an object in circular motion is modeled by the given parametric equations, where t…

A: Given value--- x =8 sin ( pi/2 t) . y = 8 cos ( pi/2 t ) . We have to find--- How long (in sec)…

Q: own write-up. Problem 1: At 20°C, a rod is exactly 20.05 cm long on a steel ruler. Both are placed…

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Q: Two pith balls, each with a mass of 1.5 g, are attached to non-conducting threads and suspended from…

A:

Q: A current carrying conductor that is 3.00 x 10-2 m long is placed perpendicular to a magnetic field…

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Q: Two blocks (50 Kg and 30 Kg) are shown connected by a string that passes over a frictionless pully.…

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Q: how can I write it without the units?

A:

Q: Suppose the distance between four black fringes is 1.82 cm, the distance from the screen is 2.7 m,…

A: given, Distance between the slits, d = 0.28 mm = 0.28 × 10-3 m Distance between the slits and the…

Q: Car A is moving at 6m/sec. and accelerating 1.5m/sec2 to overtake Car B which is 115.2m ahead. If…

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Q: ack and Sally are standing 10 meters from the bottom of a 100-meter ridge. Suddenly, a large stone…

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Q: A 20 kg block is resting on a 40 degree incline. If the coefficient of static and kinetic friction…

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Q: The electric field strength at a distance of 2.00 cm from a 2.1 x 10-5 C point charge, expressed in…

A: Solution: Given: 1 m = 100 cm q = strength of charge = 2.1 x 10-5 C r = distance between charge q…

Q: n an electric motor, a coil with 131 turns of radius 2.20 cm can rotate between the poles of a…

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Q: Two blocks (15 Kg and 25 Kg) are shown on a fixed 40 degree incline connected by a rope. An applied…

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Q: A transverse wave on a string is described by y(x, t) = A cos (ωt + kx), where A = 0.700 mm, ω =…

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Q: 2m2 of water is converted into 2050 m3 of steam at atmospheric pressure and 100°C temperature. If…

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Q: If a car comes to a full stop over a distance of 484 m using a constant acceleration of -8.0 m/s2,…

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Q: An aircraft takes off from Seattle (latitude 47.45 degrees north) on a great circle route. What must…

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Q: O O O O O Consider two vectors A and B of magnitude 2 and 3 respectively. The sum of these two…

A: For, the resultant vector we need two vectors and the angle between them.

Q: A horizontally launched projectile lands 83.04m below the launch point and a horizontal distance of…

A: Write the given values with the suitable variables. h=83.04 md=119.69 m Here, h is the vertical…

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: