Standing waves of frequency 68 hz are produced on a string that has mass per unit length 0.0160 kg/m. with what tension must the string be stretched between two supports if adjacent nodes in the standing wave are to be 0.74 meters apart?

You cover 10 meters in a time of 1 second. Is your speed the same if you cover 20 meters in 2 seconds?

A certain 100W light bulb has an efficiency of 95%. How much thermal energy will this light bulb add to the inside of a room in 2.5h if the bulb is on for the whole time?

The speed of light in a vacuum is 2.998Ã108 m/s. calculate its speed in miles per hour (miles/h).

My Notes A certain lightbulb has a tungsten filament with a resistance of 21.4 Ω when at 20.0°C and 147 Ω when hot. Assume the resistivity of tungsten varies linearly with temperature even over the large temperature range involved here.

What is the meaning of force in phisics one motion dwnmintion

In what way would a digital thermometer be preferable to those from a liquid-based thermometer? Digital thermometer readings are easier to use when performing calculations.

Why does the core of the sun contain more helium and less hydrogen than the surface of the sun?

What happens to a light ray passing through the center of a lens?

A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.870 m/s at an angle of 35.0° above the table, and it lands on the magazine 0.0770s after leaving the table. Ignore air resistance.

A force of 5 N accelerates an object. The object's mass is 50 g. What is the acceleration of the object? (Formula: F=ma)