Physics, 06.10.2021 02:50 faithcalhoun
A team of eight dogs pulls a sled with waxed wood runners on wet snow (mush!). The dogs have average masses of 20.0 kg, and the loaded sled with its rider has a mass of 225 kg. (a) Calculate the magnitude of the acceleration (in m/s2) starting from rest if each dog exerts an average force of 175 N backward on the snow. m/s2 (b) What is the magnitude of the acceleration (in m/s2) once the sled starts to move? m/s2 (c) For both situations, calculate the magnitude of the force (in N) in the coupling between the dogs and the sled. Fpart (a) N Fpart (b) N
Answers: 2
Physics, 22.06.2019 09:00
When a bicycle coasts uphill, it moves slower and slower as it climbs. why? a. its kinetic energy is transforming into heat energy. b. its potential energy is transforming into kinetic energy. c. its kinetic energy is transforming into potential energy and heat energy. d. its potential energy is transforming into kinetic energy and heat energy.
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Physics, 22.06.2019 16:00
Marvin records scientific data about lake superior. for which property has marvin forgotten to use an si unit of measurement? shore length high temperature low temperature annual precipitation
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Physics, 23.06.2019 02:50
Orque can be calculated by multiplying the force (n) applied at 90∘ to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n⋅m. if the force (at 90∘ to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?
Answers: 2
Physics, 23.06.2019 06:30
Takumi works in his yard for 45 minutes each saturday. he works in the morning, and he wears sunscreen and a hat each time he works in the yard. what does takumi hope to reduce through his actions? the likelihood of stochastic effects, such as dna mutations the severity of stochastic effects, such as cancer the severity of non-stochastic effects, such as cancer the likelihood of non-stochastic effects, such as radiation sickness
Answers: 3
A team of eight dogs pulls a sled with waxed wood runners on wet snow (mush!). The dogs have average...
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