What are 5 fun facts about cytoplasm?

1 answer:

5 0

You could google it... but here are some facts anyway:
1. cytoplasm is about 80% water but also contains dissolved carbs, proteins and fats.
2. the nucleus has its own type of cytoplasm that is slightly different than that of the rest of the cell. it is called nucleoplasm.
3. when cytoplasm is in a watery state, it is called cytosol and when it's more jelly-like, it is called cytogel
4. in an animal cell, cytoplasm gives the cell its shape.
5. cytoplasm is a good conductor of electricity.

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Say you want to make a sling by swinging a mass M of 2.3 kg in a horizontal circle of radius 0.034 m, using a string of length 0

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Answer:

T = 764.41 N

Explanation:

In this case the tension of the string is determined by the centripetal force. The formula to calculate the centripetal force is given by:

$F_c=m\frac{v^2}{r}$ (1)

m: mass object = 2.3 kg

r: radius of the circular orbit = 0.034 m

v: tangential speed of the object

However, it is necessary to calculate the velocity v first. To find v you use the formula for the kinetic energy:

$K=\frac{1}{2}mv^2$

You have the value of the kinetic energy (13.0 J), then, you replace the values of K and m, and solve for v^2:

$v^2=\frac{2K}{m}=\frac{2(13.0J)}{2.3kg}=11.3\frac{m^2}{s^2}$

you replace this value of v in the equation (1). Also, you replace the values of r and m:

$F_c=(2.3kg)(\frac{11.3m^2/s^2}{0.034})=764.41N$

hence, the tension in the string must be T = Fc = 764.41 N

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A 2500 kg mustang car accelerates from rest to 30 m/s in 6 sec.What is acceleration of the mustang car?

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5. In a lab experiment, 45 grams of a metal are heated from 22⁰C to 78⁰C by the addition of 450 J of heat. What is the specific

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Energy = mc (delta T) where m is the mass in kg, c is the specific heat capacity, and delta T is the change in temperature.

450 = (45x10^-3)c (78-22)

450 = (0.045)c (56)

c = 178.57 J/kgK

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