Grigoriy S.

12/04/21

How do you solve for impulse in a system where both carts are moving in the same direction and they collide?

Hi So my question is as follows: there is a 34kg mass and a 81kg mass on a track. they collide, where both are moving in the same direction, and have a final velocity of 0.9m/s. the 34kg block's... more

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Calculus Precalculus

12/03/21

Express 9x^2-12x+5 into form (ax+b)^2+c

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Physics

12/03/21

The Bullet and the Ice

A 3.29g aluminum bullet at 31.5°C is fired at a speed of 229 m/s into a large block of ice at 0°C, in which it embeds itself. What quantity of ice melts?

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Physics

12/02/21

A long wooden rod is supported in the vertical position by a hinge/pivot at its upper end so that it is free to swing like a pendulum.

A long wooden rod is supported in the vertical position by a hinge/pivot at its upper end so that it is free to swing like a pendulum. The length of the rod is 2.70 m and its mass is 2.10 kg. The... more

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Physics

12/02/21

A sphere of mass 4.30 kg and radius 20.0 cm, rolls without slipping down an incline.

A sphere of mass 4.30 kg and radius 20.0 cm, rolls without slipping down an incline. The sphere starts from rest at an elevation of 5.30 m above the bottom of the incline.A. What is the moment of... more

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Math Science Physics

12/02/21

Tricky projectile physics problem

A newspaper delivery boy throws a newspaper onto a balcony 1.25 m above the height of his hand when he releases the paper. Given that he throws the paper with a speed of 12.5 m/s and an angle of... more

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Geometry

12/02/21

Find the coordinates of the orthocenter of the triangle with the given vertices.

J(-3,-4) , K(-3,4), and L(5,4)I first found the the slope of the perpendicular to each line segment. Then used the point slope formula and the given coordinates to form 2 equations and then set the... more

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Precalculus

12/02/21

Find the inverse of the function:

Find the inverse of the function: 𝑓(𝑥) = 𝑙𝑜𝑔3( 𝑥 + 9) − 4.

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Physics

12/01/21

A long horizontal wire carries a current of 47 A. A second wire, made of 2.5 mm diameter copper wire and parallel to the first but 20 cm below it, is held in suspension magnetically.

What is the magnitude of the current in the lower wire?

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Physics

12/01/21

Do this task fast

The period of oscillation of the body is 3.14 s, and the amplitude is 2 cm. What is the velocity if the phase angle is π radians?

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Algebra 1

12/01/21

What is the equation of a line parallel to 3x + 4 =y and passing through (4, -2)?

A. 3x + 10 = yB. 3x - 14 = yC. -1/3x - 2/3 = yD. -1/3x + 10/3 = y

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Physics

11/30/21

At a particular playground there is a merry-go-round that may be thought of as a flat, solid disk

At a particular playground there is a merry-go-round that may be thought of as a flat, solid disk of mass 137 kg and radius 1.46 m. A child whose mass is 26.3 kg is running toward the outer rim of... more

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Algebra 2

11/30/21

one student travels 40 miles per hour and the other travels 45 miles per hour. How long does it take the students to be 17 miles apart

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Algebra 2

11/30/21

Identify an equation in standard form for a hyperbola with center (0, 0), vertex (0, 17), and focus (0, 19).

Please show how you arrive at answer.

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Precalculus

11/30/21

A 25 ft ladder leans up against the side of a house, the base of the ladder a distance 4 ft from the wall. If the ladder is moved out by 4 feet, how far down the wall will the top of the ladder move?

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Geometry

11/29/21

the volume of a cylinder is 12,566.4 cm3. The height of the cylinder is 8 cm.

Find the area of the base of the cylinder to the nearest tenth of a centimeter. Find the lateral area to the nearest tenth of a centimeter Find the surface area of the cylinder.

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Trigonometry

11/29/21

SIN(α + β); SINα = 4/5, α IN QUADRANT II, TAN β = -√3/2, β IN QUADRANT IV.

Can someone please show me how to find the exact value and the appropriate identity?

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Algebra 1 Word Problems

11/29/21

A number equals two more than another. A number plus twice another is 11. Find the numbers.

This is the last problem im stuck on and math and could use the help

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Physics

11/28/21

What is the period of a simple pendulum 54 cm long on the Earth? Express your answer using two significant figures. If there is no answer, enter none.

What is the period of a simple pendulum 54 cmcm long on the Earth?Express your answer using two significant figures. If there is no answer, enter none.

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Physics

11/28/21

What is the acceleration a1a1 of the block when it passes through its equilibrium position?

Consider the system shown in the figure.(Figure 1) It consists of a block of mass mm attached to a spring of negligible mass and force constant kk. The block is free to move on a frictionless... more

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Math Science Physics

11/28/21

Rock physics problem

A rock is thrown from the top of a tower with a speed of 2.5 x 101 m/s and at a downward angle of 30.0⁰ to the horizontal, as shown, as shown. What are the horizontal and vertical components of the... more

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Physics

11/28/21

A very small body with the mass m and the virtually zero initial velocity v0 = 0 slides down on a fixed smooth spherical surface with the radius R from topmost point.

A very small body with the mass m and the virtually zero initial velocity v0 = 0 slides down on a fixed smooth spherical surface with the radius R from topmost point.-Find the momentum vector p... more

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Physics Physics B Physics C

11/28/21

I got Part A,B and they are correct. I need help with part C. If you can help me with part C i would really appreciate it. A satellite of mass 5800 kg orbits the Earth and has a period of 5800 s .

Part A Determine the radius of its circular orbit. Express your answer using two significant figures. r = 7.0×10^6 mPart B Determine the magnitude of the Earth's gravitational force on the... more

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Math Algebra 1

11/28/21

The length of a rectangular athletic field is 5 less than twice the width. If the perimeter of the athletic field is 146 yards, what are its dimensions in width and length?

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Physics

11/27/21

A thermodynamic system performs work and at the same time exchanges energy to the outside environment

A thermodynamic system performs work and at the same time exchanges energy to the outside environment. There is no additional help or changes in terms of fuel supply or an increase in the... more

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How do you solve for impulse in a system where both carts are moving in the same direction and they collide?

Express 9x^2-12x+5 into form (ax+b)^2+c

The Bullet and the Ice

A long wooden rod is supported in the vertical position by a hinge/pivot at its upper end so that it is free to swing like a pendulum.

A sphere of mass 4.30 kg and radius 20.0 cm, rolls without slipping down an incline.

Tricky projectile physics problem

Find the coordinates of the orthocenter of the triangle with the given vertices.

Find the inverse of the function:

A long horizontal wire carries a current of 47 A. A second wire, made of 2.5 mm diameter copper wire and parallel to the first but 20 cm below it, is held in suspension magnetically.

Do this task fast

What is the equation of a line parallel to 3x + 4 =y and passing through (4, -2)?

At a particular playground there is a merry-go-round that may be thought of as a flat, solid disk

one student travels 40 miles per hour and the other travels 45 miles per hour. How long does it take the students to be 17 miles apart

Identify an equation in standard form for a hyperbola with center (0, 0), vertex (0, 17), and focus (0, 19).

A 25 ft ladder leans up against the side of a house, the base of the ladder a distance 4 ft from the wall. If the ladder is moved out by 4 feet, how far down the wall will the top of the ladder move?

the volume of a cylinder is 12,566.4 cm3. The height of the cylinder is 8 cm.

SIN(α + β); SINα = 4/5, α IN QUADRANT II, TAN β = -√3/2, β IN QUADRANT IV.

A number equals two more than another. A number plus twice another is 11. Find the numbers.

What is the period of a simple pendulum 54 cm long on the Earth? Express your answer using two significant figures. If there is no answer, enter none.

What is the acceleration a1a1 of the block when it passes through its equilibrium position?

Rock physics problem

A very small body with the mass m and the virtually zero initial velocity v0 = 0 slides down on a fixed smooth spherical surface with the radius R from topmost point.

I got Part A,B and they are correct. I need help with part C. If you can help me with part C i would really appreciate it. A satellite of mass 5800 kg orbits the Earth and has a period of 5800 s .

The length of a rectangular athletic field is 5 less than twice the width. If the perimeter of the athletic field is 146 yards, what are its dimensions in width and length?

A thermodynamic system performs work and at the same time exchanges energy to the outside environment

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