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You are standing at the top of a cliff that has a stairstep configuration. There is a vertical drop of 6 m at your feet, then a horizontal shelf of 10 m, then another drop of 4 m to the bottom of the canyon, which has a horizontal floor. You kick a 0.76 kg rock, giving it an initial horizontal velocity that barely clears the shelf below.
1.) What initial horizontal velocity v will be required to barely clear the edge of the shelf below you? The acceleration of gravity is 9.8 m/s2 . Consider air friction to be negligible.
2.)How far from the bottom of the second cliff will the projectile land?
Describe the role of electrical forces in nuclear fission. When a nucleus undergoes fission, what role can the ejected neutrons play
The potential dissimilarity between the plates of a capacitor is 235 V. Midway between the plates an electron and protons are released. The electron is released from rest. The proton is projected perpendicularly toward the negative plate with an init..
The objective lens in a microscope with a 21.0 cm long tube has a magnification of -50.0 and the eyepiece has a magnification of 15.0. What is the focal length of the objective
An 75 kg stuntman jumps from a window of a building situated 25 m above a catching net. Assuming air resistance exerts a 100-N force on the stuntman as he falls; decide his velocity now before he hits the net.
A bullet of mass mb is fired horizontally with speed v1 at a wooden block of mass mw resting on a frictionless table. The bullet hits the block and becomes completely embedded within it. After the bullet has come to rest within the block, the bloc..
A diathermy machine, used in physiotherapy, generates electro magnetic radiation that gives the effect of "deep heat" when absorbed in tissue. One assigned frequency for diathermy is915.00 MHz. What is the wavelength of this radiation?
two electrically charged objects are placed at 6 cm away from each other. each object has an electrical charge of 1 uc
A 2.0 kg canister is moving in the positive x direction with an initial velocity of 4.0 m/s, How fast will the canstier be moving as a result of this force
A basketball player with a body weight of 850 N exerts a force of -4500 N against the ground during takeoff (jumping upward). How much force does the ground exert on the basketball
Monochromatic light of wavelength 600 nm illuminates a single slit of width 6.5 um and a diffraction pattern is created on a wall. The central maximum has a width of 3.5m. Determine the separation between the slit and the wall.
an equilateral triangle has sides of 0.14 m. charges of -8.5 8.0 and 1.6 microc are located at the corners of the
a uniform electric field exists in a region between two oppositely charged plates. an electron is released from rest at
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