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Question1
An arrow is fired with a speed of 18.0 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates an assured distance into the block before coming to rest relative to it. Throughout this process the arrow's deceleration has a magnitude of 1450 m/s2 and the block's acceleration has a magnitude of 450 m/s2
Question2
A plane accelerates from rest at a constant rate of 5.00m/s^2 along a runway that is 1800m long. Imagine that the plane reaches the necessary takeoff velocity at the end of the runway. What the time t_ {rm is TO} needed to take off?
find a horizontal force needed to pull a mass of 500 gram at constant velocity on a level surface and µk = 0.3?
A tiny insect is trapped 1.0 mm from the center of a spherical, As you look straight into the drop, what is the insect's apparent distance from the drop's surface
Jupiter emits radio waves and also visible light (reflected Sunlight). Which of the following statements about the light we detect from Jupiter is true.
Draw a cube and Cartesian axes. All points of the cube lie in the (+,+,+) octant of the coordiante system. Determine the angle (in degrees) between the vectors OA and OC
You are traveling in a convertible with the top down. How far has the car moved when you get a chance to catch the tomato
Knowing that these two tones are two harmonics apart, find the smallest length the tunnel could have. Also determine the harmonic number for these two tones
The range of human hearing extends from approximately 20 Hz to 20000 Hz. Find out the wavelengths of these extremes while speed of sound in air is equal to 348 m/s.
A vacuum cleaner is plugged into a 120.0-V socket and uses 4.1 A of current in normal operation, Find the coil resistance of the motor
Two objects of the same mass, m = 1.00 kg, are projected towards each other. The first object initially has velocity (20.0m/s)i^. What is the change in kinetic energy in the collision
A simple pendulum uses a steel wire as the "string." The length of this wire is 1.5 m at room temperature. What is the change in the period of the pendulum
An object of mass 50.5 g is initially placed in boiling water so that it is at 101° C. Then the object is dropped into a calorimeter, Find the specific heat of the object
A toroid having a 7.2 cm square cross section and inside radius of 22.8 cm has 170 turns of wire and carries a current of 1.8 A. What is the magnetic flux through the cross section
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