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Q. A 3.60-{rm m}-long, 430 {rm kg} steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 {rm kg} construction worker stands at the far end of the beam.
Q, A proton and an electron are held in place on the x-axis. The proton is at , while the electron is at . They are then released from rest simultaneously and allowed to interact via the electric force. Which particle reaches the origin first?
a.Neither particle reaches the origin. b.The electron. c.They reach the origin at the same time. d.The proton.
What will most likely cause arcing at the switch contacts.
A dentist uses a small mirror of radius 45 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 14 mm from the tooth, what is the magnification of the resulting image.
A 9kg block is connected by a string over a light pulley to a 5kg block that is sliding over a flat table (i.e. the 9kg is pulling the 5kg off the table). If Co-efficient of kinetic friction is 0.200, find the tension in the string.
A stone is shown at rest on ground. at. The vector shows the weight of the stone. Complete vector diagram showng another tha results in zero net force on the stone. b. What is the conventional name of the vector you have drawn.
A motorist drives south at 22 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30 m/s for 1.00 min. For this 6.40 min trip, find out the following values.
A point source of light is 200 cm below the surface of a body of water. Find out the diameter of the circle at the surface through which light emerges from the water.
If the light from the spotlight strikes the mirror at an angle to the normal, what angle to the normal would you expect for the reflected rays.
A butterfly at eye level is 26 cm in front of a plane mirror. You are behind the butterfly, 48 cm from the mirror. What is the distance between your eye and the image of butterfly in the mirror.
What is the frequency of light that has the wavelength in water of 788 nm if the refractive index for this light is 1.33.
A diverging lens (f = -12 cm) is located 20.0 cm to the left of a converging lens (f = 34.5 cm). A 3.00 cm tall object stands to the left of the diverging lens, exactly at its focal point.
An observer on the ground watches the boy throw the can and catch it. In this observer's ground frame of reference, explain the shape of can's path and determine the initial velocity of the can.
A 56.0 kg ice skater spins about a vertical axis by her body with her arms horizontally outstretched, making 1.50 turns each second. The distance from one hand to the other is 1.5 m . Biometric measurements indicate that each hand typically makes ..
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