mrd2p

What is data structure?

A converging lens has a focal length of 14.0 cm. Locate the images for object distances of (a) 14.0 cm, (b) 4,67 cm, and (c) 28.0 cm, if they exist. For each case, state whether the image is real or virtual, upright or inverted, and find the magnification.

An oversized yo-yo is made from two identical solid disks each ofmass M = 1.90 kg and radius R = 11.6 cm. The two disks are joinedby a solid cylinder of radius r = 4.00 cm and mass m = 1.00 kg asin the figure below. Take the center of the cylinder as the axis ofthe system.
(a) What is the moment of inertia of the system? Give a symbolicanswer. (Use any variable or symbol stated above asnecessary.)
moment of inertia =
(b) What torque does gravity exert on the system with respect tothe given axis?
2.

Take downward as the negative coordinate direction.
(c) As depicted in the figure above, is the torque exerted by thetension positive or negative? (View the yo-yo from the left and letthe counterclockwise direction be positive.)
3. positive or negative
(d) Is the angular acceleration positive or negative?
4. positive or negative
(e) What about the translational acceleration?
5. positive or negative
(f) Write an equation for the angular acceleration a (alpha) interms of the translational acceleration a and radius r. (Watch thesign!)
a =


(g) Write Newton's second law for the system in terms of m, M, a,T, and g. (Do this on paper. Your instructor may ask you to turn inthis work.)

(h) Write Newton's second law for rotation in terms of I, a, T, andr. (Do this on paper. Your instructor may ask you to turn in thiswork.)

(i) Eliminate a from the rotational second law with the expressionfound in part (f) and find a symbolic expression for theacceleration a in terms of m, M, g, r and R.
a =
(j) What is the numeric value for the system's acceleration?
8. m/s2

(k) What is the tension in the string?
9. N

(l) How long does it take the system to drop 1.20 m fromrest?
10 s

You are an astronaut in the space shuttle pursuing a satellite inneed of repair. You are in a circular orbit of the same radius asthe satellite (420 km above the Earth), but 29 km behind it.

1. How long will it take to overtake the satellite if you reduceyour orbital radius by 1.3 km?

2. By how much must you reduce your orbital radius to catch up in8.0 hours?

How many nerves in a human body being active whole day ? 

(4x-2)*6(2x+7)

Place the steps in the correct order for solving the system of linear equations.

• Combine like terms. (the x's)
• Substitute the value of x linto either equation to solve for y.
• Substitute the value of y from the equation written into the other equation.
• Simplify by distributing.
• Rewrite the equation 3x + y = 9 in slope-intercept form. (y=mx+b)
• Solve for x

7. Explain why a recessive allele can only be expressed when the organism is homozygous.

Describe the importance of antimatter.

st+ e / st+ e (parent 1- red eyes, ebony body) x st e+ / st e+ (parent 2-scarlet eyes & gray body)---P1

st+ e st e+ -------------------gametes

st+ e / st e+ (red eyes, gray body)----F1

With what phenotype would you cross this F1 to measure recombination frequency?

How many bones are in our body?

1:  206

2:  390

3:  208

2Ag + Mg(NO3)2 → 2AgNO3 + Mg

If 7.96 moles of magnesium nitrate are used in the reaction, how many moles of the product containing silver is produced?

One advantage of the Kelvin system is that it is impossible to have temperatures below zero.

The prefix centi - denotes what fraction of a basic unit?

How does milk change into curd or butter?

How does the first programming language was created and which one is the first programming language?