3/ A 550 g basketball in flight has a velocity of 4.18 m/s [W] at the top of its arc. At that point it is struck by a 76.2 g arrow flying north at 35.7 m/s. The arrow becomes lodged in the ball. Based on the information in the above narrative, what happens to the initial kinetic energies of the arrow and the basketball after the arrow pierces the ball?

Select one:

Some of the kinetic energy is transformed into thermal energy.

Some of the kinetic energy is transformed into gravitational energy.

All of the kinetic energy is transformed into thermal energy.

All of the kinetic energy is retained by the arrow and the basketball.

4/ What is the difference in momentum between a 1430 kg pickup truck travelling at 50 km/h [E] on a city street and the same truck moving through a school zone at 30 km/h [E]?

Select one:

2.0 10⁴ kgm/s

1.2 10⁴ kgm/s

7.9 10³ kgm/s

2.9 10³ kgm/s

6/ An object of mass m₁ travelling at speed v₁collides with a stationary object of mass m₂. If the two objects stick together, which equation correctly calculates v₂, their speed after the collision?

Select one:

v₂=v₁m₂/(m₁+m₂)

v₂=v₁(m₁+m₂)/m₂

v₂=v₁(m₁+m₂)/m₁

v₂=v₁m₁/(m₁+m₂)

35/ A 22.0 kg red curling rock travelling at 0.698 m/s [W] strikes a stationary 22.0 kg yellow curling rock head-on. The collision takes 4.75 10^-2 s. Immediately after the collision, the yellow rock moves off at 0.682 m/s [W]. The velocity of the red rock immediately after the collision isa.bc x10^-dm/s [W]. The values fora,b,c, anddare , , , and . Enter your four digit number in the correct order without commas or spaces.

38/ Two slits are 2.00 mm apart and illuminated with monochromatic light of wavelength 590 nm. An interference pattern is observed on a screen that is 2.75 m away. The distance between the first-order antinode line and the central maximum isa.bc x10^-dm. The values fora,b,c, anddare , , , and . Enter your four digit number in the correct order without commas or spaces.

39/ The alpha decay of radon 196 produces a daughter particle with an atomic number___________?