Answer:
Explanation:
Use the equation
where h(t) is the height after a certain amount of time goes by, v0t is the initial upwards velocity, and h0 is the initial height of the projectile. For us:
h(t) = 10
v0t = 80
h0 = 3 and filling in:
and get everything on one side to factor:
This factors to
t = .09 sec and 4.9 sec. Let's interpret this.
The time of .09 is when the ball reached 10 feet on the way up, and
the time of 4.9 is when the ball reached 10 feet on the way back down. That's the height we need, 4.9 seconds.
"<span>In physics and mathematics, any quantity with both a magnitude and a direction" </span>
Explanation:
Given that,
Power drawn by the refrigerator = 20 watt
Power of burning light inside = 20 watt
Room temperature = 27°C
We need to calculate the temperature
Using formula of coefficient of refrigerator
Put the value into the formula
is less than 
Therefore, refrigerator cools its interior below room temperature while the bulb is on.
Hence, This is the required solution.
A.) the latitude called Tropic Of Capricorn
The given question is incomplete. The complete question is as follows.
For your senior project, you would like to build a cyclotron that will accelerate protons to 10% of the speed of light. The largest vacuum chamber you can find is 60 cm in diameter.
What magnetic field strength will you need?
Explanation:
Formula for the strength of magnetic field is as follows.
B = 
Here, m = mass of proton = 
kg
v = velocity = 10% of 
= 
m/s
q = charge of proton = 
r = radius = 
= 30 cm = 0.30 m (as 1 m = 100 cm)
Therefore, magnetic field will be calculated as follows.
B =
= 
= 
= 1.0437 T
Thus, we can conclude that magnetic field strength is 1.0437 T.
