Which of the following means an object is speeding up?

A. It's velocity is decreasing

B. It's velocity is increasing

C. It's acceleration is increasing

D. It's acceleration is decreasing

2 ways of defining velocity

Frank swam kilometers against the current in the same amount of time it took him to swim kilometers with the current. The rate of the current was kilometer per hour. How fast would Frank swim if there were no current?

C. is what percent of 125?

My Notes As the initially empty urinary bladder fills with urine and expands, its internal pressure increases by 3300 Pa, which triggers the micturition reflex (the feeling of the need to urinate).

1. How much work is done on a 20-N rock that you lift 1.5 meters up? A) 3 Joules B) 30 Joules C) 3 Watts D) 30 Watts

As a woman walks, her entire weight is momentarily placed on one heel of her high-heeled shoes. Calculate the pressure exerted on the floor by the heel if it has an area of 1.83 cm2 and the woman's mass is 54 kg. Express the pressure in Pa.

What is a barred spiral?

an 875kg car speed from 22m/s to 44m/s while pushing another car. what work was in changing the car's speed?

Ch 31 HW Exercise 31.10 7 of 15 Constants You want the current amplitude through a inductor with an inductance of 4.90 mH (part of the circuitry for a radio receiver) to be 3.00 mA when a sinusoidal voltage with an amplitude of 12.

Why would waves from the sun not reach Earth if they were mechanical waves? Include in your answer what is required for the movement of mechanical waves.