A spotlight on the ground is shining on a wall 12m away. If a woman 2m tall walks from the spotlight toward the building at a speed of 0.6m/s, how fast is the length of her shadow on the building decreasing when she is 2m from the building?
If the mass of a planet is 0.571 times that of the Earth and its radius is 0.787 times that of the Earth, estimate the gravitational field g at the surface of the planet. The gravitational acceleration on Earth is 9.8 m/s2. Answer in units of m/s2
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.1 × 106 m/s. Find the central force acting on the electron as it revolves in a circular orbit of radius 4.51 × 10−11 m. Answer in units of N
Make up a data set of at least 12 numbers that have the following landmarks Maximum 18 Mode 7 Range 13 Median 12 Make a bar graph of the data
The bottle was previously opeedn, thus altering the water content. This is because hydrates do not keep their stoichiometric ratio of cations and anions to water molecules. Hope this helps.
Combine like terms and solve 6a + 5a = -11 6a+5a = 11a 1) 11a = -11 /11 /11 2) a = -1
Just break it down 4 (10's)= 10+10+10+10 = 4*10 = 40 5 (10's)= 10+10+10+10+10 = 5*10 = 50 9 (1's)= 1+1+1+1+1+1+1+1+1= 9*1 = 9 You can also rewrite the problem this way 40 < x < 50 This means the number has to be between 40 and 50, but it must also have 9 ones...
A statue is 8 feet tall. The display case for a model of the statue is 18 inches tall. Which scale allows the tallest model of the statue that will fit in the display case. A 1 inch : 2 inches B 1 inch : 7 inches C 1 inch : 5 inches D 1 inch : 10 inches
What is the tone of at the lunch counter?
Algebra, HELP! PLEASE!
In triangle ABC, angle B is four times as large as angle A. The measure of angle C is 12∘ more than that of angle A. Find the measures of the angles.