How much power is required to lift a heavy solid concrete beam with mass 285.63 kg upward with a constant speed of 2.35 m/s using a crane?     P = ______ watts.

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Q: 1. During new year, a fireworks shell is shot up in the air with an initial velocity of 65m/s at an ...

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Q: An incoming tennis ball (mass .060 kg) has a speed of 14m/s. The player hits the ball with a racquet...

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Q: 1. A 1200-N crate rests on the floor. How much work is required to move it at constant speed (a) 5.0...

A: Work done = F S Cosθ  where  F = force  S = displacement  θ = angle between F and S 

Q: (а) (b) (c) (d) K K K K

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Q: C F1 F2 Figure above shows a thin converging lens in front of a concave spherical mirror with the ra...

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Q: A stone is dropped from a captive balloon at an elevation of 1000 ft (304.8 m). Two seconds later an...

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Q: a) Calculate the change in Potential Energy of 8 million kg of water dropping 150 m down the intake ...

A: Given, Mass=8millon Height=150m Acceleration due to gravity=9.8m/s²  

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Q: Which of the following will emit an EM WAVE? Choose all that apply. a. A proton moving in a circle ...

A: Given Different options are given and we have to choose that option or options Which will emit an E...

Q: You decide to climb the stairs on the three floors of NIATE. Let your mass be 72.2 kg, your total ve...

A: Given data:  Mass (m) = 72.2 kg Height (h) = 10.0 m Time (t) = 5 minutes g = 10.0 m/s2 Required: The...

Q: Figure for Problem 4 w Problem 4: Newton's 1* Law The fit man doing push-ups pauses in the position ...

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Q: An electron enters a region of space containing a uniform 2.21 × 10-³ T magnetic field. Its speed is...

A: Write the expression for the radius of the path. Here, m represents the mass of an electron, v repr...

Q: 2. A uniform beam of length L weighs 400 N and holds a 600 N object as shown in the figure. Find the...

A: Given   Weight of beam, W =  400 N  Length of beam, L  Force on Object , F = 600 N   Forces of suppo...

Q: A pole vaulter wishes to clear a 4-m bar. How fast must she run? (Assume that all her kinetic energy...

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Q: A skier starts down a slope at a velocity of 4.0 m/s. If she accelerates at a constant rate of 2.0 m...

A: Given data:  Initial velocity (Vi) = 4.0 m/s Acceleration (a) = 2.0 m/s2 Time (t) = 7.0 s Required: ...

Q: The block on a smooth inclined plane is moving down with a constant acceleration of 4 m/s. m, The bl...

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Q: If a car traveling at 60 km/h will skid 20 m when its brakes lock, how far will it skid if it is tra...

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Q: • Part A The electric potential in a region is given by V = 2.0zy – 3.0zz + 5.0y?, with V in volts a...

A: Given: V=2.0xy -3.0 zx +5.0y2 Volts

Q: An AM radio station broadcasts isotropically (equally in all directions) with an average power of 3....

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Q: Two random particles X and Y were being studied by a  individual. Upon observing, he defined the mot...

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Q: As water is traveling from a water tower to someone's home, the pipes it travels in frequently chang...

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Q: (a) Calculate the speed of a proton that is accelerated from rest through an electric potential diff...

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Q: Figure 1 for your reference Vx-Vtan 8 and V_y=Vcot 0 V_x-Vsin 8 and V_y=Vcos 0 V_x Vcos e and V_y-Vs...

A: According to question we need to find x and y component of v .

Q: A 750 kg roller coaster car is pulled to the top of a hill 45 m high and arrives at the top with zer...

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Q: Acceleration due to gravity on the surface of the Moon is 1.62 m/s. If a person's mass is 60 kg on E...

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Q: A car accelerates from rest at 6.65 m/s2. How far does it get between 10.0 and 14.0 s?

A: Given data The acceleration is given as a = 6.65 m/s2. The initial velocity of the car is given as ...

Q: A hula hoop with diameter 0.791 meters is lying horizontally on the grass in LVC's acaden quad. Find...

A: magnetic flux  

Q: The speed of sound is measured to be 336 m/s on a certain day. What is this measurement per hour? Hi...

A: Given Speed of sound = 336 m/s We have to calculate speed in km/h

Q: If the differentiation of velocity with respect to time is the instantaneous acceleration as time ap...

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Q: eeded to be solved 11,12 and 13 in 1 hour and get the thumbs up please show neat a

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Q: A student sets a top spinning clockwise at 218 rad/s. The top gradually slows down as it rotates thr...

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Q: a. É = 3.4 x 1023 N /C A= 2.3 x 10-2m² e = 84° %3D bleft ondo don ot odo 5vinieng rot o woll ant lga...

A: Given data:  Electric field (E) = 3.4×1023 N/C Area (A) = 2.3×10-2 m2 Angle (θ) = 84° Required: Elec...

Q: Please explain how to do this question. A particle moving in a straight line passes through a fixed...

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Q: A sailor in a small sailboat encounters shifting winds. She sails 2.00 km east, next 3.50 km southea...

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Q: For vectors B = 22 – 6ý and A = - 5a- 4ŷ calculate: %3D - a. Ā + B = |Ã + Ē| = %3D Direction in degr...

A: Given value--- A = -5x - 4y. B = -2x -6y. We have to find--- magnitude and direction of A + B. ma...

Q: C = 12.0 B = 5.0 F= 20.0 60 A A = 10.0 30 B. 30° 53° D= 20.0 37° Assuming the +z-axis is horizontal ...

A: Since you have posted a question with a multiple sub parts, we will solve first three sub - parts fo...

Q: In the figure, two 6.30 kg blocks are connected by a massless string over a pulley of radius 1.30 cm...

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Q: Question #2: A Tesla Model 3 is driving down Bank Street in Ottawa, Ontario. It is driving along wit...

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Q: A person weighs 60 kilograms here on the surface of the earth. If the acceleration due to gravity on...

A: GivenMass of person on earth ,M=60 kgAcceleration due to gravity on Mars ,gmars=3.7 m/s2

Q: A man walks 40.2974 m directed 208.3565 degrees from the positive x-axis, then he walks 26.4057 m di...

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Q: A lever is used to lift a heavy load. When a 25 N force pushes one end of the lever down 1.8 m, the ...

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Q: A glass optical fiber is used to transport a light ray across a long distance. The fiber has an inde...

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Q: Two point charges Q, = +4.40 nC and Q, = -1.40 nC are separated by 45.0 cm. (a) What is the electric...

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Q: B

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Q: A small particle of mass m moves in such a way that 1 -m "o°r° where w is a constant 2 2 2 the poten...

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Q: A transverse wave in a string has the form y= 4.0 cos pi (0.04 x +4.3t), where x is in centimeters a...

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