A plane takes 4 hrs to fly 4200 km. What was the plane's velocity in km/hr?

Molecules can be made of atoms Of the same element only different elements only the same or different elements

A parallel plate capacitor has a charge on one plate of q = 4.5E-07 C. Each square plate is d1 = 1.7 cm wide and the plates of the capacitor are separated by d2 = 0.35 mm. The gap is filled with air, εo = 8.85 * 10-12 C2/Nm2.

Emma measured the maximum displacement of a wave that she made by moving the end of a string up and down what property of a wave was she measured A. Period B. Frequency C. Amplitude D. Wavelength

A planet has a mass 0f 5.97x10

A motor was overheating because of low voltage at its terminals. A transformer was installed to correct the problem. What is the secondary voltage of the transformer required to be in order to supply 240 volts to the motor?

Describe and apply Newton's Three Laws

If you do 1000j of work on a system and remove 500j of heat from it, what is the change in its internal energy

Two children stretch a jump rope between them and send wave pulses back and forth on it. The rope is 4.5 m long, its mass is 0.42 kg, and the force exerted on it by the children is 71 N.

An object will only change its motion if a force is directly applied to it. is this a true statement?

Janice has just measured the density of an object. Which value is possible? (Density: D = )