If a planet has a radius 16.0% greater than that of the Earth but has the same mass as the Earth, what is the acceleration due to gravity at its surface?
a. 8.45 m/s2
b. 1.57 m/s2
c. 10.0 m/s2
d. 7.28 m/s2
d
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You use a spring scale to suspend an object. The spring scale reads 7.84 N when the object is in air and 6.86 N when the object is immersed in water of density 1000 kg/m3. What is the density of the object?
A) 6000 kg/m3 B) 7000 kg/m3 C) 8000 kg/m3 D) 9000 kg/m3
A traveler pulls on a suitcase strap at an angle 36° above the horizontal. If of work are done by the strap while moving the suitcase a horizontal distance of what is the tension in the strap?
A) 46 N B) 37 N C) 52 N D) 56 N
Which one of the following quantities is equivalent to 1 ??
A) 1 V ? A B) 1 J/s C) 1 W/A D) 1 A ? s E) 1 V/A
When starting from rest at the bottom of a straight road with constant upward slope, Joan bicycles to the top 50.0 s ahead of Sally, whose travel time is 5.00 minutes. What is the ratio of Joan's acceleration to Sally's acceleration?
a. 0.694 b. 0.833 c. 1.20 d. 1.44 e. 6.00