Yuki

A 5.0 kg wooden block is placed on an adjustable inclined plane. (For this problem, μs is approximately 0.55 and μk is approximately 0.25) a) What is the angle of incline above which the block will start to slide down the plane? b) At what angle of inclin...

14 years ago

In loading a fish delivery truck, a person pushes a block of ice up a 200 incline at constant speed. The push is 150N in magnitude and parallel to the incline. The block has a mass of 35.0 kg. What is the force of kinetic friction on the block of ice?

13 years ago

A baseball has a mass of .145 kilograms. A pitcher's fastball travels at 42 m/s. How much force is applied to the ball if the catcher stops the ball in .05 sec?

13 years ago

A 3.01 kg block slides down a frictionless plane inclined 18.6° to the horizontal. If the length of the plane's surface is 1.47 m, how much work is done, and by what force?

13 years ago

If it takes 470 J of work to stretch a spring 7.4 cm, what is the spring constant?

13 years ago

A 0.59 kg mass is placed at the end of a vertical spring that has a spring constant of 68 N/m and eased down into its equilibrium position. A. Determine the change in the elastic potential energy of the system. B.Determine the system's change in gravitati...

13 years ago

A freight car with a mass of 29,000 kg rolls down an inclined track through a vertical distance of 2.8 m. At the bottom of the incline, on a level track, the car collides and couples with an identical freight car that was at rest. What percentage of the i...

13 years ago

A gray kangaroo can bound across level ground with each jump carrying it 8.4m from the takeoff point. Typically the kangaroo leaves the ground at a 23 angle. 1. Provide knowns and unknown values. 2. What is the initial velocity or takeoff speed? 3. What i...

13 years ago

Given a trapezoid ABCD with AD parallel to BC. The diagonals AC and BD are congruent. Prove that ABCD is an isosceles trapezoid.

12 years ago

A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4 will be needed to produce 650mL of a solution that has a concentration of Na+ ions of 1.50M ? Explain answer with three signif...

12 years ago

A 5 gram bullet is fired horizontally and hits an 8 kg block of wood that is at rest and can move freely. The wood and the bullet move with a velocity of 0.05 m/s after the impact. What is the initial velocity of the bullet?

11 years ago

Your doctor told you to eat 25 grams of fiber each day. You had 4 grams of fiber for breakfast. What percent of the 25 grams of fiber have you eaten so far?

9 years ago

Tell whether the sum between the two integers is always, sometimes, or never positive. Two Positive Integers: Sometimes One Positive and one negative integer: Always Is it right?

9 years ago

if a map is 1 cm per 35 km If the distance measured between 2 points on the map is 9 cm, what is the actual distance?

4 years ago

Which scale is smaller: 1 cm per 35 km or 1 cm per 250 km?

4 years ago

Total number of marbles in the jar is 20. If the possibility you're asking for involves BOTH yellow and blue then there's 15 yellow and blue marbles. Divide 15 by 20 and you get 3/4, which is 75% possiblity :)

14 years ago

Thanks

13 years ago

If you need it to be factored out, then 3a^3 + 12a^2 - 63a (That's how I'm going to write it out) can be divided out by 3a, so it turns out 3a(a^2 + 4a - 21). Next, you can further factor this out into two binomial groups using the reverse method of distr...

13 years ago

1) x = 4y - 1 2) x + 1 = 4y 3) (x + 1) / 4 = y

13 years ago

The reason why you multiply the fraction by 100 is because the fraction less than one whole number. 2/3 means two thirds of a pie or a pizza. It's only partial of one pie. 1/1, 2/2, 5/5 is 100%. 3/2 is more than one whole number because 2/2 is equal to on...

13 years ago

x -2 -2y= 3 x -5 = 2y y = x/2 -5/2 The slope is 1/2, so the perpendicular slope to it would be -2. For me, I find it easier to draw a graph. Find point (-2, -5) and draw a line with slope of -2. Once you hit the y-axis, the number on the axis is you're y-...

13 years ago

Are you asking for just the people with ONLY heart disease? If so, that means the doctor record 28 people out of 200 suffered from heart disease. That's 14%. Multiply 5000 by .14 and you would get 700 people are expected to suffer from heart diseases. If...

13 years ago

(n+ 6)(n+ 2)

13 years ago

Do you mean 124 times 124? If so, then it is 15376. Otherwise I have no idea what you're trying to ask...

13 years ago

1) 4/vy^2 + 9/vy^2 2) 13/vy^2 3) That's it.

13 years ago

You can use the pythagorean theorem for this. a^2 + b^2 = c^2 1) 6^2 + 3^2 = ? 2) 36 + 9 = 45 <=square rooting this... 3) √45 => 3√5 cm of the hypotenuse 4) 6 + 3 + 3√5 = 9 + 3√5

13 years ago

A car starts from rest on a curve with a radius of 110 m and accelerates at 1.2 m/s^2 . 1) Through what angle will the car have traveled when the magnitude of its total acceleration is 2.1 m/s^2 ? Please show steps. thank you

13 years ago

A turbine is spinning at 3600 rpm. Friction in the bearings is so low that it takes 15 min to coast to a stop. How many revolutions does the turbine make while stopping? Please show steps. Thank you!

13 years ago

1. C 2. B 3. C 4. A

9 years ago

1. C 2. D 3. A 4. A 5. B 100%

9 years ago

Nope, 8 is C The successful Haitian slave revolt The rest, uhhh I got nothin'.

9 years ago

1 1/3 ft

7 years ago

Is it 315?

4 years ago

For unit 9. lesson 11 (march 31, 2023) 10 questions! 1. Which effect does a parallel story structure create? B: satisfaction as separate threads are woven together 2. Use the statement about Shakespeare’s play Hamlet to complete the activity. answer: Sele...

2 years ago

C: recreate high-pressure conditions in a laboratory D: seismograph C: the boundary between the crust and the mantle for the 9th graders for connections academy have a good day . ":" ___:____ |"\/"| ,' `. \ / | O \___/ | ~^~^~^~^~^~^~^~^~^~^~^~^~

2 years ago

it supposed to be a whale oh well sorry for that

2 years ago