Nightmares occur during ___ sleep

During takeoff, an airplane goes from 0 to 56 m/s in 9 s. How fast is it going after 4 s?

An unidentified compound contains only oxygen and hydrogen. is it organic?

The weight of a block on the inclined plane is 500 N and the angle of incline is 30 degrees. What is the magnitude of the force of friction for static equilibrium? What is the normal force of the surface pushing up on the block?

How can you use ecozone in a sentence?

Arrows have plastic vanes or feathers that provide stability and accuracy in flight. What is the name for these vanes or feathers?

How much would a 100kg man weigh on the surface of the sun where the acceleration is 274 m/s

How much current is in a circuit that includes a 9 - volt battery and a bulb with a resistance of 12 ohms?

Find the current Voltage VD and current ID in the following circuit assuming (a) ideal diode. (b) Constant voltage drop model with Von = 0.75V (c) using the exponential model (I_0=1*10^ (-14)). Verify your results through Multisim simulation

Suppose two stars are located in region a of the h-r diagram shown in the figure below. Star X appears much dimmer that Star Y as seen from Earth. Which Star can be inferred to be nearer to Earth, and how do you know?

A student examining a joint observes collagen-rich connective tissue fibers linking the bones, but finds no synovial cavity. Which structural classification fits the observed joint?