The goal of the bulb is to produce light. What is the efficiency of this bulb as it works to put out light?

A force of 80 N is exerted on an object on a frictionless surface for a distance of 4 meters. If the object has a mass of 10 kg, calculate its velocity. v =

In general, if a wavelength is short; A - the energy and frequency are high B - the energy and frequency are medium C - the energy and frequency are low D - it tells us nothing about energy and frequency

Which property of mercury, make it a good material To use in a thermostat

The largest country in the world is Russia with a land area of 16,376,870 km2 Wh area of the Russia in m' 11. A) 1.637687 x10 B) 1.637687 x10 C) 1.637687 x10 D) 1637687 x10" E) 1.637687 x10

Two fire trucks with sirens speeds towards and away from an observer. Which statement is true involving the Doppler effect observed by the observer?

2. How is temperature related to kinetic energy?

As stream velocity decrease, which factor will likely increase? A) erosion of the stream bank B) deposition of material in the stream C) amount of material carried downstream D) size of the particles carried downstream

What cells in the nervous signals travel through the nervous system

A mechanic pushes a 3.60 ✕ 103-kg car from rest to a speed of v, doing 5,130 j of work in the process. during this time, the car moves 21.0 m. neglecting friction between car and road, find v and the horizontal force exerted on the car.

Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?