For the first stone:
The distance travelled is the initial velocity times time + distance for an acceleration from 0.
In this case, the acceleration is g (the acceleration of gravity
Plug in the numbers:
Put in standard format:
not obviously factorable, so use the quadratic formula:
A negative value has no meaning so
This is the time after the 1st throw that BOTH stones hit the water, so the time for the second stone is 2 seconds.
Use the same equations to get the initial velocity of the 2nd stone. (This time, you'll be entering d and t and solving for vi )
For the velocity hitting the water, use
When a cold drink is taken from a refrigerator, its temperature is 5 degree C. After 25 minutes in a 20 degree C room its temperature has increased to 10 degree C. What is the temperature of the drink after 50 minutes?
How many minutes are there in hours?
Find the answer for power .
The following law describes the relationship between gas volume and pressure: ________. A)Boyle's law; B)Henry's law; C)Charles' law; D)Dalton's law
If an electric switch is open then no current flows through the circuit.
The price elasticity of supply of a good is 0.8. Its price rises by 50 per cent. Calculate the percentage increase in its supply.
How many quarts are in 10 gallons?
When the net force acting on an object is zero, the total momentum of the system will:
B)increase with time;
C)decrease with time;
D)None of these
How many centimeters are in four meters?
A notebook computer has a mass of 2.25 kilograms. About how many pounds does the notebook weigh?
If the dot product of two non-zero vectors is zero, then the vectors A)are parallel to each other. B)are perpendicular to each other. C)can have any orientation. D)are anti-parallel to each other.
Which is longer 5 miles or 10 kilometers?
9 grams is how many milligrams?
How to write in scientific notation?