An apple falls from an apple tree growing on a 20o slope. the apple hits the ground with an impact velocity of 8 m/s straight downward. what is the component of the apple's impact velocity parallel to the surface of the slope?

If 500 thousand btus of energy are available to raise the temperature of a water boiler from 20°f to 100°f, how many gallons of water can be added to the boiler?

A rocket of mass 40000kg propelled by a force of 10^6N acquires a speed of 3000m/s determine the power expended

Type of energy transformation that occurs in Hairdryer? a. chemical energy-electrical energy-mechanical energy b. electrical energy-thermal energy c. electrical energy-thermal energy d. mechanical energy-electrical energy

to what circuit element is an ideal inductor equivalent for circuits with constant currents and voltages?

One major advantage of alternating current over direct current is that you can use alternating current with a device known as a transformer. The reason why alternating current works in transformers but direct current does not is?

What is the weight on earth of a girl with a mass of 38 kg?

50g of ice at 0°C is mixed with 50g of water at 80°C, what will be the final temperature of a mixture in degrees C?

If the Density of an object is 5.2 g/cm3, and its volume is 3.7 cm3, what is its mass

The direction of the magnetic field is determined by which of the following? A. energy of the current B. magnetic domain C. magnetic force D. direction of the current

A ship is traveling at 154 m/s and accelerates at a rate of 1.80 m/s^2 for 1 minute. What will its speed be after that minute? Calculate the answer in both meters per second and kilometers per hour.