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A block of mass 2 kg travels along a horizontal frictionless surface with velocity 3 m/s. The mass collides with another mass, m, and rebounds with velocity -1 m/s. What impulse was delivered to mass m?
A 100 g ball on a 60 cm long string is swung in a vertical circle whose center is 200 cm above the floor. The string suddenly breaks while it is parallel to the ground and the ball is moving upward. The ball reaches a height 600 cm above the floor..
A 20.0 ?, 9.00 ?, and 9.00 ? resistor are connected in parallel to an emf source, What is the potential difference across the source
A child looks at a reflective Christmas tree ball ornament that has a diameter of 9.0cm, How far is the child's face from the ball
Suppose that an ion source in a mass spectrometer produces doubly ionized gold ions (Au2+), each with a mass of 3.27 × 10-25 kg. Determine the radius of the path
If a disco disk is rotating with a person on it on the outer side, then if he moves inside (towards the center), the angular velocity will change-How will the energy be conserved.
A Wheatstone bridge is connected to a nine volt battery and is balanced when R1 = 6.3 k?, R2 = 3.3 k?, and R3 = 9.7354 k?
An object 1.00" high is placed 2.00" in front of a concave mirro f radius 4.00" Find p and q. Show work/picture. Locate and describe the image
A 15m long rope of m=1.8kg is stretched such that the tension in the rope is 25N. calculate the displacement of a particle in the rope at t=10s, when the wave is at x=0.5m
The force on a string is 198 N and the string's linear mass is 1.9 kg/m. What is the speed of waves on the string
A rope attached to a 20.0kg wood sled pulls the sled up a 20.0? snow-covered hill. at what value of the tension does the box slip
Two 2.2 kg masses are 1.4 m apart on a frictionless table. Each has +1.0 µC of charge. What is the magnitude of the electric force on one of the masses
A large tank is filled with methane gas at a concentration of 0.690 kg/m3. The valve of a 2.00-m pipe connecting the tank to the atmosphere is inadvertantly left open for 11.0 hours. determine the cross-sectional area of the pipe
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