A mass
is connected by a light string that passes over a pulley of mass M to a mass
sliding on a frictionless incline as shown in the figure. There is no slippage between the string and the pulley. The pulley has a radius of 25.0 cm and a moment of inertia of 1?2
If
2.00 kg,
is 1.00 kg, M is 4.00 kg, and the angle is 60.0 degrees, then what is the acceleration of
src="https://sciemce.com/media/4/d7a1e25d698e02ae34.png" class="w-image" />?
A. 3.98 down
B. 3.27
down
C. 3.15
down
D. 2.94
down
E. 1.64
down
D. 2.94
down
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Indicate whether the statement is true or false
At what rate is thermal energy generated in the 5-? resistor when ? = 24 V?
a.
13 W
b.
3.2 W
c.
23 W
d.
39 W
e.
51 W
By how many newtons does the weight of a 100-kg person change when he goes from sea level to an altitude of 5.0 km if we neglect the earth's rotational effects? (The mean radius of the Earth is 6.38 × 106 m, G = 6.67 × 10-11 N • m2/kg2.)
A) -0.60 N B) -1.5 N C) -2.6 N D) -3.6 N E) -5.2 N
The evidence favors a universe whose overall geometry is
A) closed. B) flat. C) cylindrical. D) open. E) circular.