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Ghella [55]
4 years ago
7

Which of the following is an element?

Physics
1 answer:
oksano4ka [1.4K]4 years ago
7 0
Chlorine pls mark as brianliest
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A man steps off a diving platform lands in the water below. If he were to miss the water and land on the concrete, his change in
kari74 [83]

Answer:

if he were to land on concrete, he would most likely die and stop all momentum and for the water, he'd most likely live/die (mostly live) and slow momentum to a stop and rise up to the surface

Explanation:

that's the explanation now i gotta execute order 66

7 0
3 years ago
A place kicker must kick a football from a point 36.0 m (about 40 yards) from the goal. half the crowd hopes the ball will clear
trapecia [35]
<span>The ball clears by 11.79 meters Let's first determine the horizontal and vertical velocities of the ball. h = cos(50.0)*23.4 m/s = 0.642788 * 23.4 m/s = 15.04 m/s v = sin(50.0)*23.4 m/s = 0.766044 * 23.4 m/s = 17.93 m/s Now determine how many seconds it will take for the ball to get to the goal. t = 36.0 m / 15.04 m/s = 2.394 s The height the ball will be at time T is h = vT - 1/2 A T^2 where h = height of ball v = initial vertical velocity T = time A = acceleration due to gravity So plugging into the formula the known values h = vT - 1/2 A T^2 h = 17.93 m/s * 2.394 s - 1/2 9.8 m/s^2 (2.394 s)^2 h = 42.92 m - 4.9 m/s^2 * 5.731 s^2 h = 42.92 m - 28.0819 m h = 14.84 m Since 14.84 m is well above the crossbar's height of 3.05 m, the ball clears. It clears by 14.84 - 3.05 = 11.79 m</span>
4 0
4 years ago
What is the energy of a baby who weighs 20 N sitting on a 1.5 m high chair
guajiro [1.7K]
The energy of the baby is gravitational potential energy, and it is equal to the weight of the baby times its height from the ground:
U=(mg) h
where
mg=20 N is the weight (the mass times the gravitational acceleration)
h=1.5 m is the height from the ground
If we plug the numbers into the equation, we find
U=(mg)h=(20 N)(1.5 m)=30 J
3 0
4 years ago
The absolute magnitude of a star is the amount of light received by Earth.
frutty [35]
B.false......absolute magnitude

<span>Measure of the amount of light a star actually gives off.....thats the definition....hop this is helpful</span>

<span>
</span>

6 0
4 years ago
Read 2 more answers
(IF YOU ANSWER I WILL TRY TO MARK YOU BRAINIEST!)
vredina [299]
Water<span> can </span>dissolve salt<span> because the positive part of </span>water<span> molecules attracts the negative chloride ions and the negative part of </span>water<span> molecules attracts the positive sodium ions. The amount of a substance that can </span>dissolve<span> in a liquid (at a particular temperature) is called the solubility of the substance. So the solute is the salt and the solvent is the water. I believe that is correct.</span>
4 0
3 years ago
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