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Axel Alvarez

Axel A.

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ANSWERED

Naresh Bagrecha verified

Numerade educator

4.8 m 2.2 kg 3.2 kg 1.80 m The two masses that are represented in the figure. Initially they are each 1.80 m above the ground, and the frictionless, massless pulley is 4.8 m above the ground. What maximum height does the lightest object reach after the system is released? [Hint: First determine the acceleration of the lighter mass and then its velocity at the moment the heavier object hits the ground. This is your "launch" speed. Assume it does not hit the pulley].

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INSTANT ANSWER

How many \( { }^{\circ} \mathrm{C} \) are needed to have a saturated solution with 70 grams on \( 200 \mathrm{ml} \) of water?

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Sanu Kumar verified

Numerade educator

one proton moves at 5x10^6 m/s from left to right in a vertical magnetic field of 3T. Find the magnitude of the magnetic force exerted on the proton.

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In what direction with regards to axis \( X \) will an electron that moves at \( 7 \times 10^{6} \) \( \mathrm{m} / \mathrm{s} \) go? Submitted to a magnetic field of \( 1.5 \mathrm{~T} \) if the field yields on it a magnetic force of \( 2 \times 10^{-12} \mathrm{~N} \)?

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Ajay Singhal verified

Numerade educator

A block of 15 kg of mass is over an inclined plane of 50° with regard to the horizontal one. The coefficient of friction is = 0.12 1) Calculate the acceleration of the falling block 2) if the block starts at rest, what is the speed with which it reaches the ground, if the plane has a length of 20 m? 3) In how much time does it reach the ground?

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Goutam Chand verified

Numerade educator

One block "A"with a mass of 5 kg is over an horizontal plane and is connected with a wire and a pulley of negligible weight to a second block "B" which has a mass of 3 kg. The coefficient of kinetic friction is ?? =0.10 Considering that the 3 kg block is descending... 1) Calculate the acceleration with which the blocks move 2) Calculate the tension of the wire 3) If the block starts from rest position, what is the vertical displacement of block B, if it falls in 3 seconds?

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Nishant Kumar verified

Numerade educator

A car, which is in one place "A", travels at 50 m/s at constant speed in a straight highway. A second car is 6000 m away from place "A" and travels at -35 m/s in oposite direction at the same highway in another lane. a) After how mucho time will both cars coincide? b) how much distance does each car travel before coinciding with the other?

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Nishant Kumar verified

Numerade educator

if Peter gives John $400, they both remain with the same amount of money. And if John gives peter $300, then Peter will have exactly the double of John's money. ¿How much money does each other have?

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Christopher Stanley verified

Numerade educator

A random variable X is normally distributed with a mean of 450. We know P (X > a) =0.27 1) Knowing that the standard deviation is 20, find "a". Approximate your answer to the closest whole number.

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Christopher Stanley verified

Numerade educator

A bacterial culture starts with 12 000 bacteria and its population triples every 45 minutes a) Obtain a formula for the number of bacteria over time (t) b) Determine the population of bacteria after one hour and a half.

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