Physics, 18.01.2021 21:40 harmonytaylor13
Mr. Bari (60 Kg) motorcycle (which moves at velocity V) hits a rock. Mr. Bari projected over the handlebars at 20 m/s into a haystack. If Mr. Bari is brought to rest in 0.50 second, the magnitude of the average force exerted on him by the haystack is:
Answers: 1
Physics, 22.06.2019 18:30
Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
Answers: 3
Physics, 22.06.2019 19:00
Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?
Answers: 1
Physics, 23.06.2019 04:31
Adiagram show how a converging lens can produce a real image and virtual image
Answers: 1
Physics, 23.06.2019 05:00
Definition: this is the weighted average of all of the isotopes of an element.
Answers: 1
Mr. Bari (60 Kg) motorcycle (which moves at velocity V) hits a rock. Mr. Bari projected over the han...
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