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Get college assignment help at uniessay writers Part D Use the result of part C to determine the magnitude of the force per unit length they exert on each other.

A concave shaving mirror has a radius of curvature of 24.0 cm. It is positioned so that the (upright) image of a man’s face is 2.50 times the size of the face. How far is the mirror from the face?

A circular curve of highway is designed for traffic moving at 83 km/h. Assume the traffic consists of cars without negative lift. (a) If the radius of the curve is 280 m, what is the correct angle of banking of the road? (b) If the curve were not banked, what would be the minimum coefficient of friction between tires and road that would keep traffic from skidding out of the turn when traveling at 83 km/h?

A 180 g, 37.0-cm-diameter turntable rotates on frictionless bearings at 65.0 rpm. A 24.0 g block sits at the center of the turntable. A compressed spring shoots the block radically outward along a frictionless groove in the surface of the turntable. What is the turntable’s rotation angular velocity when the block reaches the outer edge?

Four 6.5 kg spheres are located at the corners of a square of side 0.80 m. Calculate the magnitude and direction of the total gravitational force exerted on one sphere by the other three.

a 5.1 ft girl stands on ground level the sun is 25 degrees above the horizon how long is her shadow

Jeff of the Jungle swings on a 7.6-{rm m} vine that initially makes an angle of 47{rm ^circ} with the vertical. If Jeff starts at rest and has a mass of 73 {rm kg}, what is the tension in the vine at the lowest point of the swing?

A woman rides a carnival Ferris wheel at radius 24 m, completing 4.1 turns about its horizontal axis every minute. What are (a) the period of the motion, and the magnitude of her centripetal acceleration at (b) the highest point and (c) the lowest point?

A 20.0 ball of clay traveling east at 7.00 collides and sticks together with a 10.0 ball of clay traveling north at 7.00 . What is the speed of the resulting ball of clay?

A rocket is fired at a speed of 75.0m/s from ground level, at an angle of 61.4 degrees above the horizontal. The rocket is fired toward an 11.0m high wall, which is located 23.0m away. The rocket attains its launch speed in a negligibly short period of time, after which its engines shut down and the rocket coasts. By how much does the rocket clear the top of the wall?

Get college assignment help at uniessay writers At t = 0, one toy car is set rolling on a straight track with initial position 17.0 cm, initial velocity -3.9 cm/s, and constant acceleration 2.10 cm/s2. At the same moment, another toy car is set rolling on an adjacent track with initial position 9.5 cm, initial velocity 4.60 cm/s, and constant zero acceleration. (a) At what time, if any, do the two cars have equal speeds? (b) At what time(s), if any, do the cars pass each other? (c) What are their locations at that time?

A 21.0-kg projectile is fired at an angle of 60.0° above the horizontal with a speed of 70.5 m/s. At the highest point of its trajectory, the projectile explodes into two fragments with equal mass, one of which falls vertically with zero initial speed. You can ignore air resistance. (a) How far from the point of firing does the other fragment strike if the terrain is level?

World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly horizontal and has magnitude 15m/s^2.How much horizontal force F must a sprinter of mass 62.0 kg exert on the starting blocks to produce this acceleration?

A loudspeaker of mass 22.0 {rm kg} is suspended a distance of h = 2.20 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.10 {rm m}.

A loudspeaker of mass 25.0 {rm kg} is suspended a distance of h = 1.00 {rm m} below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of l = 3.30 {rm m}.

A 2.2 kg block is in equilibrium on an incline of 23◦. The acceleration of gravity is 9.81 m/s2 . What is Fn of the incline on the block? Answer in units of N.

A particle of mass 4.12 × 10-27 kg, moving at 4.62 × 105 m/s, strikes an identical particle which is initially at rest. After the interaction, the particles (which can’t be distinguished) are observed moving at angles 55.3° and 34.7°, both angles being measured with respect to the original direction of motion. What are the final speeds of the particles? Please provide step-by-step method to get the answer

A high-school pitcher is employing a ballistic pendulum to determine the speed of his fastball. A 3.3-kg lump of clay is suspended from a cord 2.0-m long. When the pitcher throws his fastball aimed at the clay, the ball becomes embedded in the clay and the two swing up to a maximum height of 0.11 m. If the mass of the baseball is 0.21 kg, find the speed of the pitch. Please provide step by step method to solving the problem

A 10.0-kg shell is traveling horizontally to the right at 25.0 m/s relative to the ground when it explodes into two fragments, one of mass 3.00 kg and the other of mass 7.00 kg. The lighter fragment goes directly forward, and the explosion releases 1.50 × 103 J of mechanical energy to the fragments. Find the magnitude and direction of the velocity of the heavier fragment relative to the ground just after the explosion. Please provide step-by-step method to solve the problem

Two ants race across a table 76 cm long. One travels at 4.6 cm/s and the other at 3 cm/s. When the first one crosses the finish line, how far behind is the second one? Answer in units of cm.

A force stretches a wire by 0.60mm. A third wire of the same material has the same length and twice the diameter as the first. How far will it be stretched by the same force?

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November 3, 2019