Explanation:
1) Kicking a ball.
2) Capture the ball by hand.
3) Push a car.
Answer:
Explanation:
When standing sound wave is produced in a medium , distance between anti-node and next node is equal to a quarter of a wave length. Node is point of silence where sound intensity is zero or minima.
wave length = velocity / frequency
= 340 / 85
= 4 m
We must move by a distance of 4/4 = 1 m away from wall
to find the first quiet spot.
- 187.237 km/hr fast is θ changing 12 min after the plane passes over the radar station
<u>Explanation:</u>
Let the distance x and angle θ be defined as in the figure below. Then

Now, differentiate with respect to t, we get

Now, calculate the travel distance from radar station to plane after 12min
Distance, 
Substituting ‘x’ value, we get

Find the rate of change of theta after 12 min,

We know, the formula for,

So, then, 




When express the value in km/he, we get, the change in theta as

Answer:
The resistor has a resistance of 10.667 ohms.
Explanation:
By Ohm's Law, voltage (
), in volts, is directly proportional to the current (
), in amperes, and by definition of power (
), in watts, we have the following formula:
(1)
Where
is the resistance, in ohms.
If we know that
and
, then the resistance of the resistor is:


The resistor has a resistance of 10.667 ohms.
Answer:
A- Carries urine to the bladder
B- excretes urine out of the body
C- Stores urine temporarily
D- Produces urine