What is the sum of the atomic masses of all the atoms in sucrose, Image?
A) 342 amu
B) 182 amu
C) 270 amu
D) none of the above
Answer: A
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A conducting rectangular loop of mass M, resistance R, and dimensions a×b is allowed to fall from rest through a uniform magnetic field which is perpendicular to the plane of the loop. The loop accelerates until it reaches a terminal speed (before the upper end enters the magnetic field). If a = 2.0 m, B = 6.0 T, R = 40 ?, and M = 0.60 kg, what is the terminal speed?
A. 1.6 m/s B. 20 m/s C. 2.2 m/s D. 26 m/s E. 5.3 m/s
A 50-kg satellite circles planet Cruton every 5.6 h in an orbit with a radius of 12 × 10^6 m. What is the magnitude of the gravitational force on the satellite by planet Cruton?
a. 63 N b. 58 N c. 68 N d. 73 N e. 50 N
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 power rating of a resistor is 0.800 W. If the value of the resistor is 400 ?, what is the maximum voltage?
A) 110 V B) 17.9 V C) 170 V D) 1.80 V