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fredd [130]
3 years ago
9

The periodic table charge between night and day caused by

Physics
1 answer:
KengaRu [80]3 years ago
7 0
A. Rotation of earth is the reason
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I need help with physics!!!What happens to the amplitude of a wave as it travels through the spring? Full answer please
Dimas [21]
The amplitude of a wave<span> refers to the maximum amount of displacement of a particle on the medium from its rest position. ... So in the end, the </span>amplitude<span> of a transverse pulse is related to the energy which that pulse transports through the medium.</span>
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3 years ago
CO is a _____. (A) reactant (B) reactant and a product (C) product
vichka [17]

b) reactant and a product

hope this helps!

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4 years ago
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Two blocks are connected by a light weight, flexible cord that passes over a frictionless pulley.Ifm1=2 kg and m2 = 3 kg, and bl
Vera_Pavlovna [14]

Answer:

t = 1.41 sec.

Explanation:

If we assume that the acceleration of the blocks is constant, we can apply any of the kinematic equations to get the time since the block 2 was released till it reached the floor.

First, we need to find the value of  acceleration, which is the same for both blocks.

If we take as our system both blocks, and think about the pulley as redirecting the force simply (as tension in the strings behave like internal forces) , we can apply Newton's 2nd Law, as they were moving along the same axis, aiming at opposite directions, as follows:

F = m₂*g - m₁*g = (m₁+m₂)*a (we choose as positive the direction of the acceleration, will be the one defined by the larger mass, in this case m₂)

⇒ a = (\frac{(m₂-m₁)}({m₁+m₂} * g = g/5 m/s²

Once we got the value of a, we can use for instance this kinematic equation, and solve for t:

Δx = 1/2*a*t² ⇒ t² = (2* 1.96m *5)/g = 2 sec² ⇒ t = √2 = 1.41 sec.

6 0
3 years ago
If your car has a mass of 800 kg, how much force is required to accelerate it forward at 4 meters/sec^2?
AnnyKZ [126]

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force= 800kg x 4m/s^2= 3200

i think this is the ans :)

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3 years ago
Which of the following shows the prefixes in order from smallest to largest?
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A) micro milli centi
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