How does increasing the object's mass affect the force needed (applied force) to move the object?

Atrain departs from its station at a constant acceleration of 5 m/s. what is the speed of the train at the end of 20s?

The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)

The process of a material going through a change of state from a gas to a liquid