Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Electric Force: While working in a University research laboratory your group is given the job of testing an electrostatic scale, which is used to precisely measure the weight of small objects. The device consists of two very light but strong strings attached to a support so that they hang straight down. An object is attached to the other end of each string. One of the objects has a very accurately known weight while the other object is the unknown. A power supply is slowly turned on to give each object an electric charge. This causes the objects to slowly move away from each other. When the power supply is kept at its operating value, the objects come to rest at the same horizontal level. At that time, each of the strings supporting them makes a different angle with the vertical and that angle is measured. To test your understanding of the device, you first calculate the weight of an unknown sphere from the measured angles and the weight of a known sphere. Your known is a standard sphere with a weight of 2.5 N supported by a string that makes an angle of 0.15 radians with the vertical. The unknown sphere's string makes an angle of 0.35 radians with the vertical. As a second step in your process of understanding this device, estimate the net charge on a sphere necessary for the observed deflection if a string were 10.1 cm long.
STEP 1: What is the mass of the unknown sphere?
Provide an answer with 1 decimal place precision.
NOTE: angles are given in radians here
A 16 cm-diameter compressed-air tank is 30 cm tall. The pressure at 20 degrees C is 140 atm. What volume would this air occupy at STP
you need to prepare a 0.151-mm-diameter tungsten wire with a resistance of 2.83 k? how long must the wire be? the
A bullet with mass m=9.5 gram and initial velocity v=630 m/s is fired into a block (mass M = 5.4 kilogram) that is hung by two strings. Consider the conservation of linear momentum, determine the velocity of the bullet+ block system right after the ..
a child operating a radio-controlled model car on a dock accidentally steers it off the edge. the cars displacement 1.0
a particular air conditioner can remove heat from a room at a rate of 150 w. heat is also added to the room through
With the engines off, a spaceship is coasting at a velocity of+230m/s through outer space. The ship carries rockets that aremounted in firing tubes, What is the velocity of the rocket
The moon's mass is 7.4 x 1022 kg and it orbits 3.8 x 108m from the earth. What is the angular momentum of the moon around the earth?
A truck driver has a shipment of apples to deliver to a destination 550 away. The trip usually takes him 10.0 . Today he finds himself daydreaming and realizes 100 into his trip that that he is running 30.0 later than his usual pace at this point. At..
A 91.3-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.79 rad/s. Find the angular velocity of the platform with its load
A person has a near point of 0.15m and a far point of 0.8m a.) what is the focal length (include the sign) of a corrective lens that will allow that person to form an image of an object 100 meters in front of his eye on the retina? b.) what is the cl..
Blocks A (mass 2.00 kg) and B (mass 15.00 kg) move on a frictionless, horizontal surface. Find the velocity of each block after they have moved apart
A concave mirror of radius of curvature of 25 centimeters forms an image of an object that is twice the height of the object. What are the object distances
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd