A 3.00 kg mass is pushed against a spring and released. If the spring constant of the
spring is 7500 N/m and the spring is compressed 10.0 cm:
i. What is the energy stored in the compressed spring? [2 points]
ii. What is the maximum speed of the mass? [2 points]
iii. The mass then travels across a rough surface and then up a smooth ramp. The speed
at the beginning of the ramp is ⃗1 = 4.00 m/s. What is the work done by friction as
the mass moves across the rough surface? [2 points]
iv. The block then travels up the smooth ramp and continues on vertically. How high
does it go? [2 points]
Answers: 3
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The graph describes the motion of an object. the object moves with from a to b. it from b to c. it moves with from c to d.
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In a system, when potential energy decreases, then entropy also decreases. true false
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Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?
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Physics, 22.06.2019 12:40
Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)
Answers: 2
A 3.00 kg mass is pushed against a spring and released. If the spring constant of the
spring is 750...
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