A valuable antique chest which weighs 1400 N is to be moved into a truck. To get the chest from the
ground onto the truck bed, which is 1.0 m higher, the movers push it up a rough ramp 4.0 m in length.
The coefficient of kinetic friction between the chest and the ramp is 0.20. Calculate the work done by the
movers on the chest if they push it at constant speed with a force, F, at an angle of B = 30° above the
(75)
horizontal
Answers: 2
Physics, 22.06.2019 01:20, Kjcampbell2
Your target variable is δf, the magnitude of the difference in frequency between the waves emitted from the sonar device and the waves received by the device after reflecting off the whale. write an expression for δf in terms of the relevant frequencies using the subscript notation introduced above.
Answers: 3
Physics, 22.06.2019 04:00, ashiteru123
What are the three ways that an object can accelerate
Answers: 2
Physics, 22.06.2019 17:40, cravens511peeelg
The first-order reaction a→2b+c has rate constant 0.538 s−1. if the initial concentration of a is 0.867 mol l−1, what is the half-life of the reaction in seconds? remember to use correct significant figures in your answer (round your answer to the nearest hundredth). do not include units in your response.
Answers: 3
A valuable antique chest which weighs 1400 N is to be moved into a truck. To get the chest from the...
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