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A simple pendulum consists of a ball connected to one end of a thin brass wire. The period of the pendulum is 3.43 s. The temperature rises by 134 C °, and the length of the wire increases. Determine the change in the period of the heated pendulum.
A particle and its anti-particle are directed toward each other, each with rest energy 1000MeV. what must the speed of the particle and antiparticle be before the collision
A convex lense of focal length 18 cm is used as a magnifying glass. at what distance from a tiny insect must you hold this lense to get a magnification of 3.
At some instant and location the electric field associated with an electromagnetic wave in vacuum has the strength 86.9 V/m. Find the magnetic field strength
Plane leaves the airport in Galisto and flies a distance 180 at an angle 68 east of north and then changes direction to fly the distance 250 at an angle 48 south of east, after which it makes an immediate emergency landing in a pasture.
A ball rolls off a table with a horizontal velocity of 5 m/s If it takes 0.6 secs for it to reach the floor A. What is the verticle componet of the balls velocity just before it hits the floor? (use g= 10 m/s^2) B. What is the horizontal componet ..
A certain camera has f-numbers that range from 1.1 to 28. If the focal length of the lens is 40 mm, what is the range of aperture diameters for the camera
A 4.20kg steel ball strikes a wall with a speed of 7 m/s at an angle of 60° with the surface. It bounces off with the similar speed and angle. If the ball is in contact with the wall for 0.20 s, what is the average force exerted by the wall on bal..
A 12.00kg runaway grocery cart runs into a spring with spring constant 260-N/m and compresses it by 65 cm. What was the speed of the cart just before it hit spring.
Assuming the can to be a cylinder with a height of 15cm and a diameter of 6.4cm , find the net inward force exerted on the vertical sides of the can due to atmospheric pressure
A flat circular disk of radius R is uniformly charged withtotal charge Q. What is the magnetic fieldstrength at the center of the disk
When are the displacement, velocity, and acceleration equal to zero for the motion of a mass on a spring? A. at maximum displacement B. at minimum displacement C. at the equilibrium position D. at a displacement of 2x E.at a displacement of 1/3x.
A charge of -4.26 micro-Coulombs is fixed at the center of a compass. find direction of the net electrostatic force acting on the charge
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