A cat leaps to try to catch a bird. If the cat's jump was at 60° off the ground and its initial velocity was 2.74m/s what is the highest point of its trajectory, neglecting air resistance?
A) 0.29 m
B) 0.58 m
C) 10.96 m
D) 0.19 m
A
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A particle is moving at 0.86c. By what magnitude percentage is the Newtonian expression for momentum in error? (The percentage error is the difference between the erroneous and correct expressions, relative the correct one)
A) 49% B) 40% C) 55% D) 62%
If y = 0.02 sin (30x? 400t) (SI units) and if the mass density of the string on which the wave propagates is 0.005 kg/m, then the transmitted power is
A. 1.03 W. B. 2.13 W. C. 4.84 W. D. 5.54 W. E. 106 W.
Energy to support an origin of life in a Europan ocean would probably come from
A) deep-sea volcanic vents B) sunlight filtering through the ice C) meteoroid impacts on the surface D) heat generated from Jupiter's magnetic field
Two blocks are connected by a string that goes over an ideal pulley as shown in the figure and pulls on block A parallel to the surface of the plane
Block A has a mass of 3.00 kg and can slide along a rough plane inclined 30.0° to the horizontal. The coefficient of static friction between block A and the plane is 0.400. What mass should block B have in order to start block A sliding up the plane? What will be an ideal response?