Please help me these questions a. A bus slams on its brakes and goes from 30 km/hr to 15 km/hr in 4 seconds. What is its acceleration? b. If a car with an initial speed of 10 m/s, accelerates at a rate of 50 m/s2 for 3 seconds. What will be the final speed be? c. A force of 100 newtons accelerates a mass of 5 kg for 10 seconds. If the mass is initially at rest, calculate the final velocity. d. A 5 kg block is pulled across a table by a horizontal force of 40 N with a frictional force of 8 N opposing the motion. Calculate the acceleration of the object.
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Physics, 21.06.2019 14:40
If the moon has a diameter of 2,159.14 miles, what is the maximum distance that it could be observed by the naked eye with enough detail that you could distinguish it from other celestial bodies (assuming that you have 20/20 vision)
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Which features on mars point to the possibility of liquid water on the planet? impact craters with sharp rims volcanic cones with craters gullies and stream-like channels mountain ranges with faults
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What is a view of science and psychology that says the value of knowledge depends on its usefulness? a. pragmatism b. psychotherapy c. physiology
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Physics, 22.06.2019 16:40
Which are true about beta reactions? there will be more than one answer. a. it has no change b. it doesn't change the mass of the number c. it has a mass of 0.0005 atoms d. it causes transmutation.
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Please help me these questions a. A bus slams on its brakes and goes from 30 km/hr to 15 km/hr in 4...
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