A100 ω resistive heater in a tank of water (1kg) increases its temperature from 10°c to 20°c over a period of 1 hour. during this period of time your measurements show that the voltage of the heater was 50v. how much energy is not absorbed by the water and leaves the system into the srroundings? assume constant specific heat and density.

Imagine you are riding on a yacht in the ocean and traveling at 20 mph. you then hit a golf ball at 100 mph from the deck of the yacht. you see the ball move away from you at 100mph, while a person standing on a near by beach would observe your golf ball traveling at 120 mph (20 mph + 100 mph). now imagine you are aboard the hermes spacecraft traveling at 0.1c (1/10 the speed of light) past mars and shine a laser from the front of the ship. you would see the light traveling at c (the speed of light) away from your ship. according to einstein’s special relativity, how fast will a person on mars observe the light to be traveling? a) 0.1c (1/10 the speed of light) b) c (the speed of light) c)1.1c (c+0.1c)

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)