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An object is placed 12 cm in front of a concave mirror whose focallength is 23 cm. The object is 3.6 cm tall.Determine (a) the location of the image,taking a real image as a positive value and a virtual image as anegative value. (b) Determine the height of the image, where an upright image will have a positive heightand an inverted image will have a negative height.
a 5.45-kg ball hangs from the top of a vertical pole by a 2.19-m-long string. the ball is struck causing it to revolve
to tighten a bolt you push with a force of 80 newtons at the end of a wrench handle that is 0.25 meters from the axis
The tip of a scanning electron microscope has a radius ofcurvature of 5 nm, and is at a potential of 3V. estimate the electric field at its surface
Plane-polarized light is incident on a single polarizing disk,with the direction of E0 parallel to thedirection of the transmission axis. Through what angle should thedisk be rotated
A transformer has 330 primary turns and 1340 secondary turns. The input voltage is 120 V and the output current is 15.0 A. What are the output voltage and input current
An inductor has the form of a coil with 2050 turns and a diameter of 1.7 mm. The inductor is placed in a magnetic fieldperpendicular to the plane of the coil and increasing at a rate of0.46 T/s. The current in the inductoris zero at t = 0, and then i..
Emilie wishes to fly to Phun City, a place where Physics Geeksrule the land, loacted 800 km [N] of her present postion. what will be her observed ground velocity
A 2.7-kg box is released on a horizontalsurface with an initial speed of 2.9 m/s. Calculate the kinetic friction force on the box
long thin uniform rod lies motionless in fric free horizontalplane along y-axis. It's pinned to the ground with a friction freepivot. A force F is applied at 90deg. to the bar and at its veryend. IF the mass is 1kg and force is 2N:
Tarzan swings on a 28.0-m-long vine initially inclined at an angle of 37.0° with the vertical. What is his speed at the bottom of the swing if he starts from rest
After landing on an unfamiliar planet, a space explorer constructsa simple pendulum of length 50.0 cm. What is the value of the acceleration of gravity on this planet
If the coefficient of static friction is 0.500, what minimum force magnitude is required from the rope to start the crate moving
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