# phhysics

A student has derived the following nondimensionally homogeneous equation:a=x/t^2 − vt + F/m where v is a velocity's magnitude, a is an acceleration's magnitude, t is a time, m is a mass, F is a force's magnitude, and x is a distance (or length). Which terms are dimensionally homogeneous? Check all that apply. I know the answers are1 2 and 4 but don't know why. explain so I can understand.
1) x/t^2
2) a
3) F/m
4) vt

1. 👍
2. 👎
3. 👁
1. answers are1 2 and 3.

1. 👍
2. 👎
2. 1. is meters/second^2

2. is meters / second^2

3. is newtons / kilograms but we all know from Newton's second law that Newtons = kilograms* meters/second^2 so 3. is also meters/second^2

4. (meters / second) * seconds = meters. TILT !

1. 👍
2. 👎
3. Do your other problem the same way.

1. 👍
2. 👎

## Similar Questions

1. ### statistics

SAT scores are normally distributed. The SAT in English has a mean score of 500 and a standard deviation of 100. a. Find the probability that a randomly selected student's score on the English part of the SAT is between 400 and

2. ### math

2. Mrs. young has her 18 students seated in a circle. They are evenly spaced and numbered in order. which student is directly opposite these three students? .student#1? .student#5? .student#18?

A student, starting from rest, slides down a water slide. On the way down, a kinetic frictional force (a nonconservative force) acts on her. The student has a mass of 71 kg, and the height of the water slide is 12.0 m. If the

4. ### Chemistry

100g of a clear liquid is evaporated and a few grams of white crystals remain. The original liquid wasa a) heterogeneous compound b) heterogeneous mixture c) homogeneous compound d) homogeneous mixture

1. ### chemistry

is motor oil a homogeneous mixture or a compound? why? is iron smelting a chemical or physical process? I call oil a homogeneous mixture. Look up the definition of a mixture and the definition of a compound. Motor oil contains a

2. ### chemistry

Choose the pair of substances that are most likely to form a homogeneous solution. N2O4 and NH4Cl C6H14 and C10H20 LiBr and C5H12 C6H14 and H2O None of the pairs above will form a homogeneous solution.

3. ### Math

The cost of a student ticket to the school play is \$7. Write an equation that correctly relates the total cost, c, for a particular number, s, of student tickets purchased. Identify the independent and dependent variable I know

1. what equation represents the following word sentence? the quotient of a number b and 0.3 equals negative 10 i think it's b/0.3 = -10 2. which equation is equivalent to the following equation? -3/4x + 1/8 = -3/8 a. -3/4x = -3/8

1. ### Algebra 1

The student council is buying school T-shirts to sell during a fundraiser. The cost (y) of school T-shirts is a linear function of the number of T-shirts bought (x). The student council can buy 100 T-shirts for \$825 and 300

2. ### math

a teacher asks four students to write equations. the table shows the responses. student 1= 7x+x-8 = 2(4x-4) student 2= 6(x+2)+2x = 5x+2+8x student 3= 8x+x-5 = 9x+8 student 4= 6(2-x)+3 = -2(3x+2) which 2 students have an equation

3. ### Algebra

A student claims that the function f(x)=x^4 + kx^2 + 1 is an even function. Which statement best describes the student's claim? The student's claim is true for all values of k. The student's claim is only true for even values of

4. ### help algebra??

stillwater junior high divides students into teams taught by a group of teachers the table shows the number of students in each team. imgur . com/x7kghII (picture of student numbers) The principle uses a computer to randomly