Tina is waiting at the bus stop. She sees and hears an ambulance as it approaches and passes by her. Which two changes in the loudness of the siren does Tina hear?

What is the purpose of the three R's of resource management? to spread out landfill areas to remove resources from homes to conserve resources to consume increasing amounts of natural resources

Which statement is true about the speed of light waves in a medium? Depends on the temperature of the light wave Decreases with a decrease in density of medium Decreases with an increase in density of medium Depends on the angle at which the wave

Haloke does 176 J of work lifting himself 0.300m at a constant speed. What is Haloke's mass?

The energy required to lift two skiers to the top of the mountain is 240 000 J. The electric motor has an efficiency of 40%. Calculate the energy wasted in the motor.

Which law explains why a book flying in the air hitting a person would hurt more than a feather hitting a person?

A weightlifter lifted 800 Newtons to a height of 2.5 meters. What is the power output if this was done in 1.22 seconds?

What conditions must be present for a translational and rotational equilibrium of a rigid body?

In objects motion will not change is the force is acting on the object are blank

How fast or slow an object is moving and in what direction

Which paragraph shows the correct relationship between kinetic energy and speed?