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A sling shot obeying hookes law is used to launch pebbles vertically into the air. You observe that if you pull a pebble back 11.1cm against the elastic band , the pebble goes 5.2m high. Assuming air drag is negligible, how high will the pebble go if you pull it back 22.2cm instead. B) how far must you pull it back so it will reach 10.4m If you pull a pebble that is twice as heavy back 11.1cm how high will it go?
Heat is another word for thermal energy. Dissimilar materials at the same temperature can contain different amounts of heat.
A tennis player receives a shot with the ball (0.0600 kg) traveling horizontally at 52.0 m/s and returns the shot with the ball traveling horizontally at 36.0 m/s in the opposite direction. What work does the racket do on the ball
A projectile is fired in such a way that its horizontal range is equal to 5 times its maximum height. What is the angle of projection
If in addition to the magnetic field a constant electric field is now created within the region where the magnetic field is located so that the charge proceeds in a straight line and exits with velocity v2 = v, what must be the magnitude of this e..
what is the displacement amplitude of sound with frequency f 1.5 khz and intensity level 90 db. take the speed of
A 500g ball moving at (10.0cm/s, +x) collides with an identical ball at rest.The incoming ball scatters at 30 degrees with respect to the +x axis, What is the speed of the each ball after collision
Two identical asteroids travel side by side while touching one another. If the asteroids are composed of homogeneous pure iron and are spherical, what diameter in feet must they have for their mutual gravitational attraction to be 1 lb?
An RLC series circuit has R = 935? , L = 18.0mH , and C = 250?F. If the circuit is connected to a 110V rms power source at the resonance frequency, what's the average power consumption
Calculate the fluid force (in Newtons) on a square plate with aside of 2 m that is submerged at ahorizontal angle of 30°. Assumethat the top edge of the plate is located at the surface of the water.
Two point charges of magnitude 4.0 μC and -4.0 μC are situated along the x-axis at x1 = 2.0 m and x2 = -2.0 m, respectively
In a fast-pitch softball game the pitcher is impressive to watch, as she delivers a pitch by rapidly whirling her arm around so that the ball in her hand moves on a circle. Find the magnitude of the total acceleration (centripetal plus tangential) ..
While strolling downtown on a Saturday afternoon, you stumble across an old car show. As you are walking along an alley toward a main street, you glimpse a particularly stylish Alpha Romeo pass by. Tall buildings on either side of the alley obscure y..
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