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mr_godi [17]
3 years ago
14

Communicable diseases can be prevented by:

Physics
1 answer:
amm18123 years ago
7 0
Washing your hands and taking medicine
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Why would you expect sodium (Na) to react strongly with chlorine (Cl)? 1. They both need to lose one electron.2. They both need
vladimir1956 [14]
Give me some answer choices and i will be happy to help
7 0
3 years ago
What is the magnitude of force required to accelerate a car of mass
mart [117]

Answer:

<h2>The answer is 8075 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

<h3>force = mass × acceleration</h3>

From the question

mass = 1.7 × 10³ kg = 1700 kg

acceleration = 4.75 m/s²

We have

force = 1700 × 4.75

We have the final answer as

<h3>8075 N</h3>

Hope this helps you

3 0
3 years ago
until a train is a safe distance from the station, it must travel at 5 m/s. Once the train is on open track , it can speed up to
kiruha [24]

Answer:

5

Explanation:

6 0
3 years ago
Prove that the period of a simple pendulum T=2×22/7×rootl/g​
Rudik [331]

Answer:

Explanation:

Check the attachment.

By the definition of the simple harmonic motion,

The motion of a particle whose acceleration is

1. Always directed towards the center of the motion.

2. Proportional to the distance from center of the motion.

We get, a ∝ -x

where

a = acceleration

x = distance of the particle from center of the motion

- sign says acceleration is in opposite direction of motion

Check the other attachment for proof of a = -ω²x (or a = -ω²y)

x and y are both use to denote distance from center of the motion

Download pdf
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pdf </span>
<span class="sg-text sg-text--link sg-text--bold sg-text--link-disabled sg-text--blue-dark"> pdf </span>
4 0
3 years ago
You have been abducted by aliens and find yourself on a strange planet. Fortunately, you have a meter stick with you. You observ
defon

Answer:

36.4276\ m/s^2

Explanation:

m = Mass of stick

L = Length of stick = 1 m

h = Center of mass of stick = \dfrac{1}{2}=0.5\ m

g = Acceleration due to gravity

T = Time period = 0.85 s

Time period is given by

T=2\pi\sqrt{\dfrac{I}{mgh}}

Moment of inertia is given by

I=m\dfrac{L^2}{3}

T=2\pi\sqrt{\dfrac{m\dfrac{L^2}{3}}{mgh}}\\\Rightarrow T=2\pi\sqrt{\dfrac{L^2}{3gh}}\\\Rightarrow g=\dfrac{4\pi^2L^2}{3hT^2}\\\Rightarrow g=\dfrac{4\pi^2\times 1^2}{3\times 0.5\times 0.85^2}\\\Rightarrow g=36.4276\ m/s^2

The acceleration of gravity on this planet is 36.4276\ m/s^2

0 0
3 years ago
Read 2 more answers
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