Other Physics Answers

Which of the following is the longest length?.A.10^0 decimeters B.10^-2 centimetres C.10^5 millimetres D.10^1 metres E.10^-7 nanometres

Calculate the total amount of heat required to raise the temperature of 55 kg of ice from -16℃ to a vapor at 118℃.

Find the energy required for Kamryn to vaporize 0.65 kg of gold. (mLv)

Celeste drops a basketball (0.9 kg) from a height of 5 m above the ground.  If the ball loses 25 % of its total energy as it bounces back up, to what maximum height will it rebound?

Horace the duck is taking a bath.  He fills a tub with 45 L of water at 46 ℃. This is a little too warm for Horace, so he thinks to add some water at 10℃, to bring the temperature of the bath down to 35℃.  How much water will Horace have to add to the tub?  If the tub will hold 55 L of water will he be able to fill the bath without it overflowing?

Joel lifts his spare anvil of mass 75 kg from the floor to a height of 1.3 m onto a bench. 

a. How much gravitational energy does this create for the anvil?

b. If the anvil then falls off the bench what speed will it have when it lands back on the floor? (conservation of energy)

Find the initial temperature of 0.355 kg of glycerin if it is heated by 600 J of heat to produce a final temperature of 91℃.?

While observing the obelisk in Saint Peter’s Square in Vatican City, you stand at the edge of the shadow it is casting across the ground, which is about 120 m long. While kneeling, you estimate your line of sight with the top of the obelisk to be about 12o above the horizontal. Approximately how tall is the obelisk?

a radio signal has a centre frequency of 202.2 MHz and a bandwidth of 300 kHz. What are the highest and lowest frequencies in the signal spectrum?

A 20 kg box is pushed up a rough sloping ramp (30° relative to the incline) with a force of 300 N a, parallel to the horizontal with constant speed. Calculate the normal force on the block