Find the weight of a 15 kg rock. Acceleration due to gravity is 9.8 m/s2.

A) 15 N

B) 5.2 N

C) 147 N

D) 1.53 N

Matter is classified by its physical and chemical properties. Which is a description of the physical properties of matter? Physical properties cannot be measured or observed without changing the composition of the substance.

When considering gravity acceleration and the force of acceleration, what must be true? A. The direction of the force and the direction of acceleration must be the same as each other. B.

What is the property of a medium that determines the speed of light in the material?

A weight lifter picks up a barbell and 1. lifts it chest high 2. holds it for 30 seconds 3. puts it down slowly (but does not drop it). rank the work w that the weight lifter does during each of these three operations.

Which of the following relationships is correct? a. Relative humidity increases: a decrease in temperature without a change in the amount of water vapor in the atmosphere. b.

A heating pad has several strips of heater wire connected in parallel. Consider eight of the wires, each with 4Ω resistances, connected to a 12V power source. given this scenario answer the following questions A.

Who first arranged the elements according to atomic mass and noticed a periodic recurrence of their physical and chemical properties? A. Henry Moseley B. Antoine Lavoisier C. John Dalton D. Dmitri Mendeleev

If the road is wet the thinking distance will be longer. True or false. Why?

You are working on a curcuit that starting to get too much current. What could you do to slow down the electron flow? A) add more watts B) increase resistance C) increase voltage D) add more volts

A 242-g block is pressed against a spring of force constant 1.62 kN/m until the block compresses the spring 10.0 cm. The spring rests at the bottom of a ramp inclined at 60.0° to the horizontal.