A weightlifter raises a 150-kg barbell from the floor to a height of 2.2 m in 0.80 s. What is his average power output during the lift?

Q: A playground is on the flat roof of a city school, 5.5 m above the street below (see figure). The…

A: Height of roof (H) = 5.5 m height of vertical wall (h) = 6.8 m Angle of launch (θ) = 53 degree…

Q: An airplane starting from airport A flies 300 km east, then 370 km at 33.0° west of north, and…

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Q: If a power company charges about 10 e per kilowatt-hour, how much would this energy cost per day if…

A: Tha charge: The energy:

Q: in the figure below, a metal bar sitting on two parallel conducting rails, connected to each other…

A: Solution:   e) Given that,   B=2.60 T at t=0 dB/dt=0.50 T/s x0=0.100 mV=2.25 m/s

Q: What Have I Learned So Far? Express the following vectors in component form using unit vectors. 1.…

A: Any physical quantity having both magnitude and direction is called a vector.

Q: 8. Determine the Magnitude of the Resultant Force acting on the Screw Eye and its direction measured…

A: Given data: The force in horizontal direction is F1=400 N. The force at θ=40° is F2=600 N.

Q: 7. An iron cube floats in a bowl of liquid mercury at 0° C. (a) If the temperature is raised to 25°…

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Q: As a ball falls under the influence of gravity, does gravity do positive work or negative work?…

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Q: The velocity of an object is given by the expression V(t) = (3.00m/s³)t2 - (4.00 m/s³)t“, where t is…

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Q: Only 100% sure experts solve it correct complete solutions okk

A: If you have any questions let me know in comment box.

Q: N vs. TIME graph below, click on the spot where the VELOCITY IS ZERO (the arrow will be placed where…

A: Introduction: When the body does not gets displaced with time, the velocity is said to be zero. So,…

Q: You pull a simple pendulum of length 0.240m to the side through an angle of 3.50degree and release…

A: Given: The given values are, The simple pendulum of length is, l=0.240 m to the side through an…

Q: A box of mass 1 kg is slid along the floor. The initial speed of the box is 5.7 m/s and it comes to…

A: Given : Mass of box = 1 kg Initial speed =5.7 m/s Final speed = 0 m/s displacement = 9.7 m

Q: An object is placed 30.0 cm to the left of a converging lens with a focal length of f1 = 20.0 cm. A…

A: Let u1 and v1 denote the distance of an object with respect to converging lens and distance of an…

Q: You can make a simple capacitor by placing two sheets of aluminum foil between the pages in your…

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Q: A 0.350 cm diameter plastic sphere, used in a static electricity demonstration, has a uniformly…

A: Given data:  Diameter (d) = 0.350 cm Charge (Q) = 45.0 pC = 45.0 × 10-12 C Required: The potential…

Q: 1. A rectangular loop carrying M A of current is placed on the z=0 plane as shown in Fig.1. [M is…

A: The current in the wire: I=MA= 6 AWe need to determine the H field at a) (2,4,0) b) (3,2,0) c)…

Q: The car in this figure is at rest and at the origin when t = 0. Assuming that its acceleration is…

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Q: (2D-motion, constant acceleration) A bomber is flying at 120 m/s horizontally at an altitude of 350…

A: Given: The intial velocity of the plane is 120 m/s horizontally. The height of the plane from the…

Q: Astronomers have taken the spectrum of a new star and found it to be continuous with several dark…

A: Kirchhoff's laws for thermal radiation help to relate the observed spectrums of celestial objects to…

Q: Three point charge q1, q2 and q3 are shown in figure (This figure is not drawn to scale). Does it…

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Q: 1. Consider two displacement vectors Ā = (-2î + 4f) m and B = (î – 3f) m, find the magnitude and…

A: 1. Given: A→=-2i^+4j^ mB→=i^-3j^ m