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

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D. 2.94

down

Physics & Space Science

Sunspots are hotter than the photosphere

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.