Question 1

Which organ is most often damaged by regularly drinking too much alcohol?

Accepted Answer

Liver

Answer

Stomach

Answer

Pancreas

Answer

Heart

Question 2

Two gliders are travelling towards each other on a horizontal air track. Glider P has mass 0.30 kg and is moving with a constant speed of 1.2m/s. Glider Q has mass 0.60 kg and is moving with a constant speed of 1.8 m
The gliders have a perfectly elastic collision. What are the speeds of the two gliders after the collision?

Accepted Answer

Speed of Q: 2.8 m/s
Speed of P: 0.2 m/s

Answer

Speed of Q: 2.0 m/s
Speed of P: 1.4 m/s

Answer

Speed of Q: 3.6 m/s
Speed of P: 0.6 m/s

Answer

Speed of Q: 1.2 m/s
Speed of P: 0.6 m/s

Question 3

The line $y = ax + b$ is a tangent to the curve $y = 2x^3 – 5x^2 - 3x + c$ at the point (2, 6). Find the values of the constants a, b and c.

Accepted Answer

a=1, b=4, c=16

Answer

a=1, b=7, c=16

Answer

a=2, b=4, c=8

Answer

a=1, b=7, c=16

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