An object falling in air has a weight of 25 N and experiences air resistance of 5 N,

the net force on the object is ...

Which characteristics are common to amphibians, lemurs, and humans? vertebrae, tetrapod, hair amniotic egg, hair, biped tetrapod, vertebrae tetrapod, hair

A boy of weight 500 N has feet with a total area of 200 cm2 . What is the pressure between him and the ground if he stands on both feet?

A railroad flatcar of mass 2000 kg Rolls to the right at 10 m/s and collides with a flatcar of mass 3000 kg that is rolling to the left at 5 m/s. The flatcars couple together. Their speed after the collision is A 1 m/s B 2.5 m/s C 5 m/s D 7 m/s E 7.

What fractions of a meter is a millimeter?

When hiking or climbing, it is important to be watchful of areas where erosion has occurred, due to an increased risk of rock slides.

Compare the friction force on the cart when it is rolling along the blacktop parking lot to the friction force on the cart when it is inside the grocery store (assume the flooring is smooth vinyl tile).

Which of the following objects has the most kinetic energy? a car going 60 miles per hour a spring that is compressed a rock sitting on the edge of a cliff a bicycle going 10 miles per hour

Which type of environment results from an equal amount of solute and solvent in and out of the cell? A. hypertonic environment B. isotonic environment C. hypotonic environment D.

If a 75 W lightbulb operates at a voltage of 120 V, what is the current in the bulb?* A. 1.6A B. 9000 A C. 195 A D. 0.63 A

A resistor and a capacitor are connected in series across an ideal battery having a constant voltage across its terminals. Long after contact is made with the battery (a) the voltage across the capacitor is A) equal to the battery's terminal voltage.