5. Which is an example of a compound?

Which of the following questions would be answered using concepts from chemistry? A. How much energy is required to lift a crate into a truck? B. How fast will a sled be moving when it reaches the bottom of a hill? C. What atoms make up water? D.

A ball is dropped off the balcony of a hotel room and it takes 2.8s to fall to the ground. how high above the ground is the ball

Which statement uses the terms velocity and acceleration correctly? A. Acceleration is the rate of change of velocity. B. An object with a constant velocity cannot accelerate. C. Acceleration is always in a straight line. D.

Westinghouse and edison fought what was known as the war of the currents. Eventually, westinghouse triumped using Alternating current for power distribution. Alterning current is better for power generating because

A sound's pitch is measured in decibels. True False

What is the name of the area surrounding earth that is influenced by earth's magnetic field?

A 15 g turntable is covered with a uniform layer of dry ice that has a mass of 9.0 g. The angular speed of the turntable and dry ice is initially 0.75 rad/s. What is the angular speed of the turntable once all the dry ice has evaporated?

Rainwater was collected in water collectors at thirty different sites near an industrial basin and the amount of acidity (pH level) was measured. The mean and standard deviation of the values are 4.60 and 1.10 respectively.

A hot air balloon is rising straight up at a constant speed of 7 m/s. when the balloon is 12.0 m/s above the ground, a gun fires a pellet straight up from ground level with an initial speed of 30.0 m/s.

The atmosphere is an). O element O molecule O mixture O compound