1. To calulate the molarity of a solution, you need to know the moles of the solute and the?

Ken wants to jump and have some fun too! Barbie loans Ken her bungee cord. Is this a good idea? Explain with evidence and reason

aliina [53]

Answer:To ensure a safe and thrilling jump you will determine the relationship between the jump height and the

number of rubber bands used to make the bungee cord. You must allow your Barbie doll to come as

close to the floor as possible without sustaining any injuries or fatalities.

Explanation:

5 0

3 years ago

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Is motion on earth different from space

Rus_ich [418]

It's not that the laws of motion are any different on Earth than in space. But Earth's gravitational field has such an overwhelming force it masks their precise effects. And gravity is integral to all sorts of phenomena that we take for granted.

8 0

2 years ago

(11%) Problem 5: A uniform stationary ladder of length L = 2.7 m and mass M = 11 kg leans against a smooth vertical wall, while

jeka94

Answer:

970.2 N

Explanation:

We are given that

Length of ladder=2.7 m

Mass,M=11 kg

Coefficient of friction= $\mu=0.45$

$\theta=51^{\circ}$

Mass of painter=8M

Distance from base=d

We have to find the magnitude of the normal force exerted by the floor on the ladder.

Normal force exerted by floor on the ladder= $mg+8mg=9mg$

Where $g=9.8m/s^2$

Normal force exerted by floor on the ladder= $9\times 11\times 9.8=970.2N$

7 0

3 years ago

Is one liter about an ounce a pint a quart or a gallon

Ymorist [56]

Pints and ounces are both very small while gallons are very large so I would say about a Quart.

5 0

3 years ago

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Potassium is a crucial element for the healthy operation of the human body. Potassium occurs naturally in our environment and th

gregori [183]

Complete Question

Potassium is a crucial element for the healthy operation of the human body. Potassium occurs naturally in our environment and thus our bodies) as three isotopes: Potassium-39, Potassium-40, and Potassium-41. Their current abundances are 93.26%, 0.012% and 6.728%. A typical human body contains about 3.0 grams of Potassium per kilogram of body mass. 1. How much Potassium-40 is present in a person with a mass of 80 kg? 2. If, on average, the decay of Potassium-40 results in 1.10 MeV of energy absorbed, determine the effective dose (in Sieverts) per year due to Potassium-40 in an 80- kg body. Assume an RBE of 1.2. The half-life of Potassium-40 is $1.28 * 10^9$ years.