Grigoriy S.

Trigonometry

11/27/21

A plane flies 1.3 hours at 110 mph on a course of 38°. It then turns and flies 1.5 hours at the same speed on a course of 128°. How far is the plane from the starting point?

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Answers •1

Trigonometry

11/27/21

Given <a in quadrant 1 and <b in quadrant 2 with sina= 7/25, cosb=-5/13. A) find exact values for cosa and sinb. B) use the appropriate compound angle formula to find the exact value of sin(a+b)

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Answers •1

Sat Math

11/26/21

Answer the following:

The perimeter of a rectangle is 72 meter, find its dimension and its maximum area

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Answers •2

Trigonometry

11/26/21

Show that sin^4x-cos^4x/sin^2x -cos^2x =1

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Answers •2

Physics

11/25/21

Need Help with solution

A 25N block is being pushed up on a plane inclined at an angle of 30° with the horizontal 46 N force applied parallel to the plane. The block moves 3 m up the inclined plane. How much... more

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Answers •1

Physics

11/25/21

How much power is required if a car needs to pull an object in an inclined road of 45 degrees using 32.5 N in 1 kilometer for 1 minute? Assume that the road is frictionless.

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Answers •1

Physics Mecanic

11/24/21

Find the acceleration and force of a 20 kg box pushed by 80 kg person.

A person weighing 80 kg applies a horizontal force to a 20 kg box to set it in motion. We give μs = 0.8 for the person and μk = 0.4 for the box a) Assuming the person remains stationary, what is... more

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Physics

11/24/21

Hi,I have a question.

Is the work of friction in water slides negative or positive and why?Please I need a good explanation because I heard it is positive because of the water, but I am not convinced.

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Answers •1

Physics

11/23/21

Physics Questions

A 1.2 m long frictionless pendulum of mass 2 kg is pulled 40 degrees from its rest position and let go. What is the kinetic energy and speed of the pendulum as it reaches the bottom of its... more

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Answers •2

Trigonometry

11/23/21

A river is flowing due east at 7 mi/h. A man heads his motorboat in the direction N 30° E in the river. The speed of the motorboat relative to the water is 10 mi/h.

A river is flowing due east at 7 mi/h. A man heads his motorboat in the direction N 30° E in the river. The speed of the motorboat relative to the water is 10 mi/h. (Let east-west be represented by... more

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Answers •1

Algebra 2

11/23/21

Given: P(x) = 4x3 - 5x2 + 2x - 1

Given: P(x) = 4x3 - 5x2 + 2x - 1Find P(-1)

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Answers •1

Physics

11/23/21

Physics Momentum

A man with a mass of 54 kg and a boy with a mass of 27 kg push against each other while they are standing on ice skates on a frozen pond. If the man moved away from the boy with a velocity of 4.5... more

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Answers •1

Physics

11/23/21

A charge of -8µpC and a charge of +6µpC are placed so that they exert a force of 8.4 N on each other. How far apart are the charges? Compare the electrical and gravitational forces.

drawn diagram is needed with the solution, thank you

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Answers •1

Geometry

11/23/21

The equation for line j can be written as y= 1/8x+7. Parallel to line j is line k, which passes through the point ( – 3, – 1). Write the equation in slope-intercept form.

What is the equation of line k?

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Answers •2

Physics

11/23/21

Physics ('Basic' Problems)

Please, help me with these problems. Also include a step-by-step procedure and a short clear explanation. Two objects collide in space. The first object is twice as heavy as the second object. If... more

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Answers •1

Physics

11/23/21

physics i need help

A 3,500kg car rests on rough horizontal ground. A rope is attached to the car and is pulled with a force of 12,000N to the left. As a result, the car accelerates at 2.9 m/s^2. The coefficient of... more

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Answers •1

Physics Momentum

11/22/21

Physics Help Momentum

Two marbles collide. One is traveling at 10 cm/sec and has a mass of 60 grams. The other marble has a mass of 50 grams and travels at -12 cm/sec. If the first marble rebounds backwards with a... more

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Answers •2

Geometry

11/22/21

Find the equation of an ellipse if its center is S(2,1) and the edges of a triangle PQR are tangent lines to this ellipse. P(0,0), Q(5,0), R(0,4)

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Answers •1

Physics

11/22/21

A stockroom worker pushes a box with 12.3 kg on a horizontal surface of 3.10 m/s . The coefficients of kinetic and static friction between the box and the surface are 0.280 and 0.480, respectively.

Part AWhat horizontal force must the worker apply to maintain the motion of the box?Part BIf the worker stops pushing, what will be the acceleration of the box?

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Answers •1

Physics

11/22/21

Unless otherwise stated, all objects are located near the Earth's surface, where g = 9.80 m/s2 . A block of mass 26.0 kg slides down a frictionless surface inclined at 31 ∘.

Part ATo ensure that the block does not accelerate, what is the magnitude of the smallest force that you must exert on it?Express your answer using two significant figures.Part BWhat is its... more

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Answers •1

Physics

11/21/21

Find acceleration of sled when child releases the rope with the tension being 16 N.

A child pulls a 3.6 kg sled at 25 degrees to a slope that is 15 degrees to the horizontal. The sled moves at a constant velocity when the tension is 16 N. What is the acceleration of the sled if... more

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Physics

11/21/21

Will someone please help me with these physics questions.

A baseball player hits a home run. Which best describes the action reaction pair in this system?a. The player exerts a force on the ball and the bat accelerates its motionb. The bat exerts a force... more

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Answers •1

Physics Sat Math Physics B

11/20/21

Physics problem for normal force URGENT

Lily, 50kg, Julie 52kg is driving in a car on their way to watch a terrible Manchester United match. The Normal force of the car 10 887.8N at this point. Next they give Robert, 60k, a ride to this... more

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Answers •1

Physics

11/20/21

What is the acceleration of the block?

A block of mass 3 kg slides down an inclined plane at an angle of 45° with a massless tether attached to a pulley with mass 1 kg and radius 0.5 m at the top of the incline (see the following... more

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Physics

11/18/21

Describe 4 criteria you would use to compare energy sources.

Describe 4 criteria you would use to compare energy sources

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Answers •1

A plane flies 1.3 hours at 110 mph on a course of 38°. It then turns and flies 1.5 hours at the same speed on a course of 128°. How far is the plane from the starting point?

Given <a in quadrant 1 and <b in quadrant 2 with sina= 7/25, cosb=-5/13. A) find exact values for cosa and sinb. B) use the appropriate compound angle formula to find the exact value of sin(a+b)

Answer the following:

Show that sin^4x-cos^4x/sin^2x -cos^2x =1

Need Help with solution

How much power is required if a car needs to pull an object in an inclined road of 45 degrees using 32.5 N in 1 kilometer for 1 minute? Assume that the road is frictionless.

Find the acceleration and force of a 20 kg box pushed by 80 kg person.

Hi,I have a question.

Physics Questions

A river is flowing due east at 7 mi/h. A man heads his motorboat in the direction N 30° E in the river. The speed of the motorboat relative to the water is 10 mi/h.

Given: P(x) = 4x3 - 5x2 + 2x - 1

Physics Momentum

A charge of -8µpC and a charge of +6µpC are placed so that they exert a force of 8.4 N on each other. How far apart are the charges? Compare the electrical and gravitational forces.

The equation for line j can be written as y= 1/8x+7. Parallel to line j is line k, which passes through the point ( – 3, – 1). Write the equation in slope-intercept form.

Physics ('Basic' Problems)

physics i need help

Physics Help Momentum

Find the equation of an ellipse if its center is S(2,1) and the edges of a triangle PQR are tangent lines to this ellipse. P(0,0), Q(5,0), R(0,4)

A stockroom worker pushes a box with 12.3 kg on a horizontal surface of 3.10 m/s . The coefficients of kinetic and static friction between the box and the surface are 0.280 and 0.480, respectively.

Unless otherwise stated, all objects are located near the Earth's surface, where g = 9.80 m/s2 . A block of mass 26.0 kg slides down a frictionless surface inclined at 31 ∘.

Find acceleration of sled when child releases the rope with the tension being 16 N.

Will someone please help me with these physics questions.

Physics problem for normal force URGENT

What is the acceleration of the block?

Describe 4 criteria you would use to compare energy sources.

Still looking for help? Get the right answer, fast.

OR

Grigoriy S.

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Emmersion

A plane flies 1.3 hours at 110 mph on a course of 38°. It then turns and flies 1.5 hours at the same speed on a course of 128°. How far is the plane from the starting point?

Given <a in quadrant 1 and <b in quadrant 2 with sina= 7/25, cosb=-5/13. A) find exact values for cosa and sinb. B) use the appropriate compound angle formula to find the exact value of sin(a+b)

Answer the following:

Show that sin^4x-cos^4x/sin^2x -cos^2x =1

Need Help with solution

How much power is required if a car needs to pull an object in an inclined road of 45 degrees using 32.5 N in 1 kilometer for 1 minute? Assume that the road is frictionless.

Find the acceleration and force of a 20 kg box pushed by 80 kg person.

Hi,I have a question.

Physics Questions

A river is flowing due east at 7 mi/h. A man heads his motorboat in the direction N 30° E in the river. The speed of the motorboat relative to the water is 10 mi/h.

Given: P(x) = 4x3 - 5x2 + 2x - 1

Physics Momentum

A charge of -8µpC and a charge of +6µpC are placed so that they exert a force of 8.4 N on each other. How far apart are the charges? Compare the electrical and gravitational forces.

The equation for line j can be written as y= 1/8x+7. Parallel to line j is line k, which passes through the point ( – 3, – 1). Write the equation in slope-intercept form.

Physics ('Basic' Problems)

physics i need help

Physics Help Momentum

Find the equation of an ellipse if its center is S(2,1) and the edges of a triangle PQR are tangent lines to this ellipse. P(0,0), Q(5,0), R(0,4)

A stockroom worker pushes a box with 12.3 kg on a horizontal surface of 3.10 m/s . The coef­ficients of kinetic and static friction between the box and the surface are 0.280 and 0.480, respectively.

Unless otherwise stated, all objects are located near the Earth's surface, where g = 9.80 m/s2 . A block of mass 26.0 kg slides down a frictionless surface inclined at 31 ∘.

Find acceleration of sled when child releases the rope with the tension being 16 N.

Will someone please help me with these physics questions.

Physics problem for normal force URGENT

What is the acceleration of the block?

Describe 4 criteria you would use to compare energy sources.

Still looking for help? Get the right answer, fast.

OR

Grigoriy S.

A stockroom worker pushes a box with 12.3 kg on a horizontal surface of 3.10 m/s . The coefficients of kinetic and static friction between the box and the surface are 0.280 and 0.480, respectively.