Physics, 03.02.2020 15:01 abbeygrace13
Starting from rest ,a dog drags a 100.0 kg box for 3.00m as shown .the force diagram indicates the forces acting on the box. what is the work done by the dog?
Answers: 1
Physics, 21.06.2019 22:50
An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?
Answers: 3
Physics, 23.06.2019 20:00
9) a laser pulse takes 2.56 seconds to travel from earth to the moon and back. given that the speed of light 300000 km per second, how far away is the moon? show your calculations 10) calculate the moonβs density, in g/cm^3 given the moon has a mass of 7.3 x 10^22 kg and has a radius of 1.7 x 10^6 m.
Answers: 2
Physics, 23.06.2019 22:30
Alunar lander is making its descent to moon base i. the lander descends slowly under the retro-thrust of its descent engine. the engine is cut off when the lander is h = 5.5 m above the surface and has a downward speed of 0.8 m/s. with the engine off, the lander is in free fall. what is the speed of the lander just before it touches the surface? the acceleration due to gravity on the moon is 1.6 m/s2.
Answers: 2
Starting from rest ,a dog drags a 100.0 kg box for 3.00m as shown .the force diagram indicates the f...
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