Is final velocity a vector or scalar?

A ball starts from rest at point A and rolls .9 meters east to point B with an average velocity of 2 m/s. What was the velocity of the ball at B? Given: Vi=0 m/s  d (displacement)= .9m... more

09/09/17

Physics question. Please help. Thanks in advance. I got 3.

An equipotential line is:options: 1) A line connecting two point charges 2) A line of constant potential surrounding a source of charge 3) A line spiraling into a source of charge 4) A line where... more

Motion of particle

x= 5+2cos(πt)  y=3+2sin(πt)    1≤t≤2   If the pi wasnt there, I know it would be (x-5/2)2 +(y-3/2)2 =1 ---> (x-5)2 + (y-3)2 = 4 center(5,3,) and radius=2    For my original equations at... more

09/09/17

see description

A hobbyist owns an ultralight airplane that requires a speed of 16 m/s in order to takeoff. Starting from a dead stop, the airplane engine can provide 3.2 m/s2 of average acceleration.The hobbyist... more

09/09/17

How far does this projectile go before hitting the water?

The steam-powered catapult on the USS Abraham Lincoln can accelerate an F-18 Hornet to a speed of 170 knots. The deck height of this carrier is h = 26 m. If the pilot forgets to start the engines... more

09/09/17

One number is five more than three times another if their sum is increased by one the result is twenty six fine the numbers

one number is five more than three times another if their sum ia increased by one the result is twenty six find the numbers

Linear or exponential growth

The population of a town is increasing by 620 people per year. State whether this growth is linear or exponential. If the population is 1400 today, what will the population be in three years?

The frigid craters on the moon are important because they prove that comets or asteroids crashed into the moon.

The frigid craters on the moon are important because they prove that comets or asteroids crashed into the moon.The frigid craters on the moon are important because they prove that comets or... more

what is the amount of each loan

Bobs two student loans total to $9000. One loan is 4.5% simple intreste adn the other is at 5.5% simple interest. At the end of one year, Bob owes $447 in interest. What was the amount of each loan?

09/08/17

how many 0.5-foot tiles are needed to completely cover a 4-foot square wall ? with steps

SHOW THE STEPS !!

Convert 6/7% to a decimal point then round to the nearest 100th

6/7% = 6÷7÷100 = 0.0085714286 round to the nearest hundredth = 0.01.    Is that right?

09/08/17

line that is perpendicular to y= 3/10 x -3

plz help  

09/08/17

I need to know how to set up the problem, a format.

Calculate the pH for a solution with [H+] = 1 x 10-4.   pH =_______

09/08/17

A solution with a pH of 2.0 is how many times more acidic than than a solution with a pH of 4.0?

A solution with a pH of 2.0 is how many times more acidic than a solution with a pH of 4,0?

09/08/17

ph balance with a [H+]

How do I calculate the pH for a solution with [H+] = 1 x 10-4.  pH = ______________

09/08/17

what is the mass of an 85 N person

I need this answer ASAP like in 2 minutes

09/08/17

If a projectile is launched directly upward from level ground with a flight time of 20 seconds, what is its initial speed?

I think it's 196m/s.  Assume we are on Earth with no air resistance. 

09/08/17

add r to s, triple the result, then multiply q by what you have

the description needs to be in expression form

09/08/17

Question about a function

I'd like to know how this f(x)=x^2-2px+p+6 can be simplified like this =(x-p)^2+p+6-p^2 Thanks!

09/08/17

My daugter got this question - i dont agee with the answer the teacher gave

" In a certain class, the ratio of pass grades is 7 to 5. How many of 36 students failed the course?"

09/07/17

if a rock is thrown upward on the planet mars with a velocity of 10 m/s, its height (in meters) after t seconds is given by H=10t-1.86t^2

if a rock is thrown upward on the planet mars with a velocity of 10 m/s, its height (in meters) after t seconds is given by H=10t-1.86t^2   (a) find the velocity of the rock after one second (b)... more

09/07/17

Starting from gome, a car is driven at constant velocity of 30 m/s for 5 minutes. The driver then stops at the store. She is in the store for 10 minutes.

Continued: She then drives back home at 20 m/s.   How many seconds have elapsed from time she left home until she arrives back

09/07/17

Determine whether the formula describes y as a function of x. Explain your reasoning. y=-x

Determine whether the formula describes y as a function of x. Explain your reasoning. y=-x

09/07/17

A car slows down from 40 m/s to 2 m/s at a constant rate of 5 m/s^2. How many seconds until the car is at 2 m/s?

Physics. Help me understand what formula to use and what values are the acceleration and velocity.

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