A liquid mixture of water and alcohol has a density of 900kg/m3. find the mass of alcohol in one litre of the mixture

How much time does it take to travel from the position of 25m to a position of 100m at an average speed of 15m/s?

Students who participated in an optimism workshop: O A. had fewer episodes of depression. O B. had fewer health problems. O C. All of these O D. had fewer episodes of anxiety.

The multiple reflection of a single sound wave is a/an a. echo. b. reverberation. c. refraction. d. diffraction.

A 20 kg child is on a swing that hangs from 3.0-m-long chains. what is her maximum speed if she swings out to a 45° angle?

Why is the inside of a car hotter than the outside on a summer day?

An elastic conducting material is stretched into a circular loop of 10.7 cm radius. It is placed with its plane perpendicular to a uniform 0.803 T magnetic field. When released, the radius of the loop starts to shrink at an instantaneous rate of 81.

The height of a horse is sometimes given in units of "hands." Why was this a poor standard of length before it was redefined to refer to exactly 4in.?

A canoe is floating down a river with a velocity of 35 meters per minute when it suddenly approaches a waterfall. if the waterfall drop 30 meters, how far put will the canoe land?

A source for conducting formal research would include_ a observations b. interviews written reports d. personal ideas

Ultrasound. High-frequency sound waves (ultrasound) are used to probe the interior of the body, much as x rays do. To detect a small objects such as tumors, a frequency of around 5.10 MHz is used.