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Someone standing at the edge of a cliff throws one ball straight up and another ball straight down at the same initial speed. Neglecting air resistance, the ball to hit the ground below the cliff by the greater speed will be
1) The one thrown downward.
2) The one thrown upward.
3) Neither they will both hit by the same speed.
A remote-controlled car's wheel accelerates at 22.1rad/s2. if the wheel begins with an angular speed of 10rad/s, what is the wheel's angular speed after exactly eleven fullturns?
question1a long solenoid with 70 turns of wire per centimeter carries a current of 0.16. the wire that makes up
Tim and Rick both can run at speed and walk at speed, with. They set off together on a journey of distance. Rick walks half of the distance and runs the other half. Tim walks half of the time and runs the other half.
An Electromagnetic Car Alarm, Your latest invention is a car alarm that produces sound at a particularly annoying frequency of 3500Hz. What value of inductance should you choose for your car alarm circuit
A baseball is hit with a speed of 28.0{\rm m/s} at an angle of 47.0{\rm ^\circ} . It lands on the flat roof of a 14.0{\rm m} -tall nearby building. what horizontal distance does it travel before it lands on the building
A transformer connected to a 120 V ac line needs to supply 12,500 Vac to power an immense neon sign used as a business advertisement. What is the ration of secondary to primary turns of the transformer needed in order to make the sing light-up?
Sound with a frequency 700 Hz from a distant source passes through a doorway 1.07 m wide in a sound-absorbing wall. Find the number of the diffraction minima at listening positions along a line parallel to the wall
find the magnetic field strength in gauss for a current of 3.7 a in the helmholtz coils with 147 turn assuming a coil
a slingshot consists of a light leather cup containing a stone. the cup is pulled back against two parallel rubber
A circular coil (660 turns, radius = 0.036 m) is rotating in a uniform magnetic field. Find the magnitude of the magnetic field at the location of the coil
Two particles each with charge +1.86 µC are located on the x axis. One is at x = 1.00 m, and the other is at x = ?1.00 m. (a) Determine the electric potential on the y axis at y = 0.320 m. .... kV (b) Calculate the change in electric potential energy..
when 200nm light is incident on the cathode of a photoelectric tube the stopping potential is 4.2v.a find the velocity
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