A force exerted on an object produces acceleration. If the mass remains the same and the acceleration is doubled, the force must be.

A sample of a radioactive substance is reduced to 1.0 gram after 4 half-lives. Determine the mass of the original sample before it decayed. A 1/16 grams B 16 grams C 8 grams D 1/8 grams

What is the word for the horizontal distance a projectile travels

What causes streams to flow downhill until they reach an ocean or a sea? A. gravity B. wind C. the spinning of the earth D. air pressure

Liquefaction explaination

Besides a meter stick, what would you need to measure the velocity of a wave on a spring? a) the wave frequency b) the wavelength of the wave c) the wave amplitude d) a stopwatch

A 0.300-kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.200-kg puck moving initially along the x axis with a speed of 2.00 m/s. After the collision, the 0.200-kg puck has a speed of 1.00 m/s at an angle of? = 52.0

Ariella drove 40 miles to see her cousin. The trip took Ariella 2 hours. Then drove from her cousins house to a store for 30 miles. It took Ariella to hours to Ariella to arrive at the store. What was the average speed of the trip

A meandering river is flowing in a broad, alluvial valley and the river is silt-laden but also moves sand and a small amount of gravel. The government decides to build a dam across the valley for power and flood control.

The Sun 1. Sara has made this list to summarize what she learned in science class today: 1. Core 2. Radiation zone 3. Convection zone What is the best title for her list? a. The Layers of the Interior of the Sun b. The Layers of the Sun c.

Jack rolled a marble down a ramp and recorded the potential energy and kinetic energy of the marble at different positions on the ramp, as shown in the table.