Emyr sat his GCSE Maths exam. He scored a total of 112 marks out of
the 200 possible
The table shows the grade obtained based
on the percentage scored in the exam,
a) Workout Emyr's percentage score,
b) What is Emyr's result?​

Which of the following correctly describes the early view of catastrophism?

Velocity is a description of both speed and direction, therefore it - a vector - a force arrow - the same as acceleration - a magnitude

A47.2 g block of copper whose temperature is 480 k is placed in an insulating box with a 91.8 g block of lead whose temperature is 200 k. (a) what is the equilibrium temperature of the two-block system? (b) what is the change in the internal energy of the two-block system between the initial state and the equilibrium state? (c) what is the change in the entropy of the two-block system? the heat capacities of copper and lead are 386 j/kg·k and 128 j/kg·k, respectively.