Speed = Distance%Time
Speed is 0,4km/h
Answer:

Explanation:
When a certain amount of substance is supplied with a certain amount of energy Q, the temperature of the substance increases according to the equation

where
m is the mass of the substance
C is the specific heat capacity
is the change in temperature
In this problem:
m = 150.0 g is the mass of wood
Q=67,000 J is the amount of energy supplied to the wood
is the increase in temperature of the substance
Therefore, the specific heat capacity is:

Answer: 200 joules I think.
Explanation: