Does a bridge anchored resting on two pillars have any torque?   None, it isn't moving   Yes, but it will soon break because of the torque   None, Bridges can't have torque   Yes, but it is at equilibrium

Q: 3. A biker weigh 60.0kg, biking at Kalatao diversion road started sliding down from the top of a hil...

A: Given: m =60.0 kgh = 20.0 md = 15m

Q: Two manned satellites approaching one another at a relative speed of 0.400 m/s intend to dock. The f...

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Q: (a) Find the work done by the force on the particle as it moves from x = 0 to x = 2.00 m. (b) Find t...

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Q: A particle moves according to the parametric equations x 19 and y = 21?, where t is in seconds and x...

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Q: Mindy, a medical device engineer, is designing an apparatus to monitor the breathing of a patient. T...

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Q: 3.4 The Crosby gage tester shown in the figure is used to cali- brate or to test pressure gages. Whe...

A: Given that:- Reading of gage=200kPa

Q: A person of mass 49.5 kg stands at rest. How much will the average force exerted on the feet by the ...

A: Given : Mass of person = 49.5 kg Weight =49.5 *9.8 = 485.1 N Time interval = 0.225 s Increase in mom...

Q: An astronaut drops a marble on the surface of the airless Planet Z-49 and observes that it takes 1.0...

A: Using kinematic equation, h = v0*t+1/2*g*t∧2 2 = 0*t+1/2*g*1.02∧2 g = 4/1.02∧2    = 3.845m/s∧2

Q: A trunk with a weight of 250N is at rest on a floor. The coefficients of friction between the trunk ...

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Q: A sack slides off the ramp with a velocity of 12 m/s. If the height of the ramp is 6 m from the floo...

A: Option 4 is the right ans. 1.11 s / 13.3 m

Q: 3. A force of 10 N is applied to a small cart for a distance of 2.0 m. (a) What work is done on the ...

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Q: Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are ...

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Q: A light ray traveling in air strikes the surface of a slab of glass at an angle of incidence of 50°....

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Q: Ik thẻ figure below, a horizontal force F a of magnitude 24.0 N is applied to a 2.57 kg psychology b...

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Q: An object is placed 52.0 cm in front of a diverging lens. What is the focal length if the distance b...

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Q: 00 A Moving to another question will save this response. 31 hp & 2$ % 7 6. 4.

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Q: IE .. A car on a circular track accelerates from rest. (a) The car experiences (1) only angular acce...

A: a) Angular acceleration to increase its speed and centripetal acceleration to keep it in circle so ,...

Q: 4 A floorball player hits the ball then it moves across the floor horizontally in a straight line wi...

A: Given: a(t) = -2.4tv(0) = 56 m/sx(0) = 56 m/swe have to findv=? , when x=230m

Q: Your absent-minded instructor accidentally placed a 15.0-kg box on top of a frictionless incline. Th...

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Q: A hot water heater in a residential home runs for an average of 2.2 hours per day with a heat energy...

A: Given : Average running time of hot water heater = 2.2 hrs. per day = 2.2 * 60 * 60 = 7920 s Heat en...

Q: collision. 2. Compare the total KE before and total KE after of elastic and perfectly inelastic coll...

A: Elastic collision  The collision in which both momentum and kinetic energy conserved is called elast...

Q: An athlete executing a long jump leaves the ground at a 28° angle and travels 7.8 m. If the speed wa...

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Q: In an experiment, you will drop a 0.1 kg egg from a height of 10 m. How much energy is present in th...

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Q: he speed of a 1600 kg car increases uniformly from 20 m/s to 30 m/s. (a) What is the increase in its...

A: Given that                The mass of the car is (M) = 1600Kg                 Velocity increase from...

Q: In an experiment to determine the thermal conductivity of a new metal alloy, a bar of the metal is c...

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Q: simple single-lens camera (convex lens) is used to photograph a man 1.7 m tall who is standing 3.5 m...

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Q: Calculate the % submerged of an object, if the density of the object is 2200 kg/m3 and it is placed ...

A: Density of object , dobject = 2200 kg/m3  Density of fluid , dfluid = 1500 kg/m3  % Submerged is cal...

Q: A 6kg hoop 3m in diameter rolls down a plane inclined 40 degrees. At the bottom of the incline, what...

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Q: An ideal parallel-plate capacitor is connected across a DC power supply, The voltage of the power su...

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Q: A 5.9 × 107 kg battle ship originally at rest fires a 1100-kg artillery shell horizontally with a ve...

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Q: A snatcher is running along a straight line with a constant acceleration. He covers a distance of 70...

A: Given data: Distance (d) = 70.0 m Initial velocity (Vi) = 0 m/s Time (t) = 8.00 s Required: Final ve...

Q: 3) If you try to insert a circular copper wire between two permanent magnets (see figure below), is ...

A: At the initial position, there is no magnetic flux within the loop. When the loop is placed between ...

Q: A high-altitude balloon is partially filled with 3 m^3 of helium at sea level. As the balloon ascend...

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Q: 6 m 6 m 8 kg m kg 8 kg nooth pulley are 12 m apart at the same horizontal level. A light inextensibl...

A: Given: m1=m2=8kgL=20mD=12 m

Q: In this diagram, is the charge positive or negative?

A: we know magnetic force experienced by charged particle moving through a magnetic field is   FB=qv×B ...

Q: Asteroid Ida was photographed by the Galileo spacecraft in 1993, and the photograph revealed that th...

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Q: In the area below, categorize each characteristic according to the type of wave it describes. Some c...

A: To categorize the characteristics of sound waves and electromagnetic waves   

Q: If acceleration due to gravity is 15 m/ s? , what will be the potential energy of a body of mass 3 k...

A: Given data :            Acceleration due to gravity  =  g              Height  =  h               Ma...

Q: 14. The time required for a rotating, revolving, or vibrating object to complete one cycle is the 15...

A: As per guidelines , only first 3 subparts are solved here. 14. The time required for a rotating , re...

Q: Two cars collide at an icy intersection and stick together afterward. The first car has a mass of 11...

A: m1=1100 kgm2=750 kkgv1=4.0 m/s  (due south)v2=20.0 m/s (due west)

Q: The captain of a spaceship orbiting planet X discovers that to remain in orbit at 410 km from the pl...

A: The orbital speed of satellite orbiting around a planet is given  by  V = (GM/r) 1/2. Where G = grav...

Q: 1. What is the electric field strength at a distance of 10 cm from a charge of 2 uC?

A: Electric field due to a point charge (q) at a distance (r) is  E = kq/r^2 Where k= 9×10^9 Nm^2/C^2  

Q: A 60-dB sound is reaching he eardrum with on area of 70 mm?. Find the energy received by ke eardrum ...

A: Given that:- Loudness of sound=60dB

Q: 2. You get in an elevator, and step onto a weighing scale. You also recall that your normal weight i...

A: Normal weight of a man=625N

Q: 3. A 1.0 kg book initially at rest falls from a height of 1.5 m to the floor. (a) Set the origin of ...

A: Since you have asked multi subpart question, I am answering first 4 subparts, if you need the answer...

Q: A merry-go-round accelerates from rest to 0.68 rad/s in 33 s. If its moment of inertia is 750 kg m2,...

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Q: Passengers in the jet transport A flying east at speed of 800km/h observe a second jet plane B that ...

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Q: Deadpool drops down from the top of a tall building. It takes 10.0 s for him to fall from point P to...

A: Total height of the building = h distance between P and Q = h3time taken to travel from P to Q = 10 ...

Q: A concave mirror has a radius of curvature of 15 cm. An object is placed 20 cm from the mirror. Clas...

A: The radius of curvature of the concave mirror, R=15 cm , so the focal length of this concave mirror ...

Q: figure shown a motor pulling an object in an in clined surface. Determine the power required to move...

A: Since object is moving with constant velocity acceleration must be zero hence forces along horizonta...

Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.