Consider a high-speed bus colliding head-on with an innocent bug. The force of impact splatters the unfortunate bug over the windshield. Which is greater, the force on the bug or the force on the bus?
A. Bug
B. Bus
C. Both are the same.
D. Cannot say
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Rotational Kinetic Energy: A string is wrapped tightly around a fixed frictionless pulley that has a moment of inertia of 0.0352 kg ? m2 and a radius of 12.5 cm. The string is pulled away from the pulley with a constant force of 5.00 N, causing the pulley to rotate. What is the speed of the string after it has unwound 1.25 m if the string does not slip on the pulley?
A. 2.09 m/s B. 2.36 m/s C. 1.18 m/s D. 3.18 m/s E. 4.95 m/s
A deuteron, with the same charge but twice the mass of a proton, moves with a speed of 6.00 × 10^5 m/s perpendicular to a uniform magnetic field of 0.0525 T. Which of the paths described below would it follow? (qp = 1.60 × 10^?19 C and md = 3.34 × 10^?27 kg)
a. a straight-line path b. a circular path of 61.1 cm radius c. a circular path of 23.9 cm radius d. a circular path of 2.14 cm radius e. a circular path of 1.70 cm radius
Concentrations of ozone-eating atoms or molecules in the neighborhood of one in a thousand pose no threat to the ozone layer
What will be an ideal response?
Which of the following is closest in mass to a white dwarf?
A) the Moon B) Earth C) Jupiter D) the Sun