Calculate the average speed (in km/h) of a car stuck in traffic that drives 12 kilometers in 2 hours
Answers
12/2 = 6 km/h
hope this helps
Related Questions
Which situations contain unbalanced forces? Check all that apply.
In order for an organism to develop specialized tissues the organism must be
a ball has mass of 0.1 kg and an initial velocity of 20 m/s the ball is given an acceleration of 30 m/s^2 for 5s what is the net force on the ball during acceleration
A 2000-kg car traveling at 40m/s hits a wall with a force of 40,000N and comes to a stop what was the impact time?A-0.5sB-2sC-400sD-800s
Answers
|Acceleration| = (change in speed) / (time for the change)
Change in speed = (speed at the end) minus (speed at the beginning).
Change in speed = (11.9 m/s - 3.79 m/s) = 8.11 m/s
|Acceleration| = (8.11 m/s) / (5.4 sec) = 1.502 m/s² (rounded)
This solution is written in terms of speed and the absolute value
of acceleration. The question gives no information regarding the
direction of motion at any time, so it's not possible to say anything
about velocity, or the direction of acceleration.
b. fission
c. physical
d. chemical
Answers
Answer: The answer to this question is fission
Explanation: Can I get brainliest
Answers
Answer:
73.8 N
Explanation:
The total volume is,
V =
=
= 0.1396 m
The average density is,
=
= 7.169 g/cm³
The linear mass density is,
μ = pπr²
= (7.169 x 10⁹) (π (0.3 x 10⁻³)²)
= 2.026 x 10⁻³ Kg/m
The fundamental mode of length is,
L = λ/2
λ=2L
= 2 x 0.65
= 1.3 m
The speed of the wave is,
v = λf
= 1.3 m x 147 Hz
= 1.91 m/s
The tension is,
v = √T/ц
T = ц v²
= 2.026 x 10⁻³)(1.91 m/s)²
= 73.769N
73.8N
Answers
-- Power used when the heater is running =
V²/R = (240)²/4.8= 12,000 watts. (12 KW)
(A gigantic heater ... suitable for maybe a theater, not for a home.)
-- Energy consumed in one day:
(12 KW) x (24 hours) x (25%) = 72 KwH per day
-- Energy consumed in 30 days: (72 KwH/day) x (30 days) =
2,160 KwH in 30 days
-- Cost = ($0.1 / KwH) x (2,160 KwH) = $216.00 in 30 days
B. 0 m/s^2
C. -9.81 m/s^2
D. It is not constant.
Answers
Answer: B.
Explanation:
When we talk about projectile motion, we have to deal with parabolic motion, which has two components: vertical and horizontal.
In the case of Earth, the acceleration is due gravity, which is constant and directed downwards (vertically) and have a value of .
Now, in the case of the horizontal component, the acceleration will always be zero.
This is because we are dealing with parabolic movement, the x-component of the velocity remains the same (hence, there is no acceleration), while the y-component always change because it is affected by the acceleration due gravity that acts verticaly.
Answers
From your equation, we can tell that you're defining the upward direction as
positive. We can also tell that you threw the stone upward, with an initial speed
as it left your hand of 128 feet per second, about 87 miles per hour ... a mighty toss indeed, and I think there's a man from the Chicago Cubs waiting outside
who'd like to talk to you.
Anyway, When the stone splashes into the water, h(t) = 0 .
-16t² + 128t + 32 = 0
Divide each side by -16 :
t² - 8t - 2 = 0
I don't see any easy way to factor the expression on the left,
so I have to use the quadratic formula to solve this equation.
t = 4 plus and minus √18 .
t = +8.24 seconds
t = -0.24 second
Mathematically, both numbers are valid solutions.But when you apply
the equation to a real world situation, only the positive 't' makes sense.
So t = 8.24 seconds.