Answer:
Explanation:
Near the earth's surface where gravity is approximately 10 m/s² downward
v = u + at
v = 5 + (-10)(1) = -5 m/s
so it has the same speed but in the opposite (downward) direction.
<u>Answer:</u>
<em>Sand in a beach is warmer than the water of the sea.
</em>
<u>Explanation:</u>
<em>Water absorbs less heat from the sun</em> when compared with sand. Sand is darker and also is less reflective. Because of its darker nature, absorption of heat from the sun will be more. Due to its less reflective nature the sand wouldn’t be able to<em> reflect off the sunlight.
</em>
But water is highly reflective and can reflect off a <em>major portion of the sunlight falling on the sea</em>. The sea is also deep and thus the heat spreads through a large volume unlike in the <em>case of sand.</em> Water also has the nature of constant movement unlike sand which is stable.
<em>This factor also heats up sand more than water.
</em>
Answer:
answer below, like if this helps please.
Explanation:
A. If the slide became positively charged then that means the boy gained electrons. electrons can only move therefore when something becomes charged positively it is because of the transfer electrons.
B. the electrons go to the boy causing the slide to have more protons then the electrons.
Answer:
The impedance of this circuit is 200 ohm.
Explanation:
Given that,
rms voltage = 120 v
Frequency = 60.0 Hz
rms current = 0.600 A
We need to calculate the impedance
Using formula of impedance
Where, = rms voltage
= rms current
Z= impedance
Put the value into the formula
Hence, The impedance of this circuit is 200 ohm.
Answer:
Explanation:
#2 and for 2 i think that its the first one which says that there have to be a potential difference
#3 the answer is not at all