A dog pulls on a pillow with a force of 2.3 N

at an angle of 21.9◦above the horizontal

a) What is the x component of this force?

Answer in units of N

Come up with an example of classical conditioning in your own life or in the real world. Be sure to identify the unconditioned stimulus, unconditioned response, conditioned stimulus, and conditioned response.

Which of the following could drastically change climate? Select all that apply.

An automatic focus camera is able to focus on objects by use of an ultrasonic sound wave. The camera sends out sound waves that reflect off distant objects and return to the camera.

As waves travel away from a source of light, they spread over a larger area. Which describes the effect of distance on the intensity of light?

Which description is not a property of an acid? pH lower than 7 Turns litmus paper blue Sour taste Corrosive

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.

A beam of electrons with a speed of is incident on a slit of width 200. nm. The distance to the detector plane is chosen such that the distance between the central maximum of the diffraction pattern and the first diffraction minimum is 0.300 cm.

Which element has the greatest number of valence electrons? O A. Phosphorus (P) OB. Oxygen (0) O C. Sodium (Na) O D. Magnesium (Mg)