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In a lab experiment, you attach a 3.0 kg weight to a spring scale. You lift the scale and weight with a constant reading of 22.5 N.
(a) What is the value and direction of the acceleration on the weight?
(b) How far do you lift the weight in the first 2.0 s interval?
Two small insulating spheres with radius 9×10-2 are separated by a large center-to-center distance of 0.52. One sphere is negatively charged.
One end of a rope is tied to a block of mass 3.10kg and you pull straight up on the other end of the rope to lift the block up off the ground with an acceleration of 3.80m/s^2
You're designing a highway so that the maximum centripetal acceleration on a curve is no more than 1.0 m/s^2. What is the minimum curvature radius to accommodate a 100 km/h maximum speed? Please show the answer and how you got it!
Consider a square loop of wire (sides of 0.25 m) with a resistor included. A bar magnet with the north end up front is approaching the closed loop and thus induces a current. what is the rate of energy dissipation across the resistor
Sketch a principle ray diagram showing the formation of the image. compute the position, size, orientation (erect or inverted), and nature (real or virtual) of the image.
Nitromethane CH3NO2) burns in air to produce significant amounts of heat. How much heat is produced by the complete rection of 6.66kg of Nitromethane
A 2.3cm high object is located 30cm from a diverging lens, whose focal length is 14cm. What is the height of the image produced by the lens
A half-Atwood's machine consists of two masses, m1 = 8 kg and m2 = 5 kg, which are connected by a light string that passes over a pulley. what speed will it have just before hitting the floor
A person with mass m1 = 52 kg stands at the left end of a uniform beam with mass m2 = 109 kg and a length L = 3.1 m. What is the location of the center of mass of the system
A circular wire loop whose radius is 10.0 cm carries current of 2.10 A. Calculate the magnetic dipole moment of the loop
An electric fan is running on HIGH. After fan has been running for 1.0 minutes, the LOW button is pushed. What was the initial angular speed of the fan in rev/sec
When a signal of intensity 3.0kWm-2 is applied at the input of an amplifier of length 10m, the output signal intensity is 36kWm-2. When the input intensity is reduced to 1.0kWm-2 the output is 20kWm-2.
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