How is velocity affected when balanced forces act on an object?

Earthquakes are most common: O A. where oceanic crust slides under continental crust. O B. in the middle of continents. O c. where two continental plates spread apart. D. on the edges of the Atlantic plate,

At Zion National Park a loud shout produces an echo 34.50 s later from a colorful sandstone cliff. How far away is the cliff?

For a group class project, students are building model roller coasters. Each roller coaster needs to begin at the top of the first hill, where a horizontal spring that is initially compressed 0.25 m will push a small car forward.

In coming to a stop, a car leaves skid marks 85m long on the highway. Assuming a deceleration of 3.0m/s/s, estimate the speed of the car just before braking.

a 0.10kg piece of copper at an initial temperature of 95C is dropped into 0.20kg of water contained in a 0.28kg aluminum calorimeter. the water and calorimeter are initially at 15C.

How has increased energy use associated with scientific advancements affected society? a. It has led to an increase of the concentration of atmospheric carbon dioxide. b. It has led to an increase in hazardous wastes from mining operations. c.

Water is moving with a speed of 5.7 m/s through a pipe with a cross-sectional area of 4.8 cm2. The water gradually descends 9.2 m as the pipe increases to 8.8 cm2. (a) What is the speed at the lower level? (b) If the pressure at the upper level is 1.

Is Kepler's constant the same for moons orbiting a planet as it is for planets orbiting the sun? Why?

In which one of the following situations is zero net work done? A) A ball rolls down an inclined plane. B) A physics student stretches a spring. C) A projectile falls toward the surface of Earth.

Object dropped from height of 25 meters, what velocity will it hit the ground?