4,322 Answered Questions for the topic College Algebra

College Algebra Math Science Physics

11/14/20

What force had to act on that end?
In the figure, the rock weighs 225 lb and is lifted 1 ft by the lever.(a) How much work is done?(b) The other end of the lever is pushed down 3 ft while lifting the rock. What force had to act on... more
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College Algebra Math Science Physics

11/14/20

how fast (in m/s) is the tool going just before it hits the ground?
A worker at the top of a 551-m-tall television transmitting tower accidentally drops a heavy tool. If air resistance is negligible, how fast (in m/s) is the tool going just before it hits the ground?
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College Algebra Math Science Physics

11/14/20

How high (in m) will the swing be at the high point?
A child on a swing has a speed of 3.7 m/s at the low point of the arc.How high (in m) will the swing be at the high point?
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College Algebra Math Science Physics

11/14/20

What is its speed when it hits the ground?
A student drops a water balloon out of a dorm window 11 m above the ground. What is its speed when it hits the ground?
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College Algebra Math Science Physics

11/14/20

how fast are the divers going when they hit the water?
The cliff divers at Acapulco, Mexico, jump off a cliff 25.2 m above the ocean. Ignoring air resistance, how fast are the divers going when they hit the water?
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College Algebra Math Algebra Logarithm

11/14/20

Exponential and Logarithmic Models
An object with initial temperature 200∘F is submerged in large tank of water whose temperature is 50∘F. Find a formula for F(t), the temperature of the object after t minutes, if the cooling... more
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College Algebra Math Science Physics

11/14/20

What is Newton's 3 laws of motion?
What is Newton's 3 laws of motion?Month 11, Day 14For a mass having the weight equal to the Day recorded in 2 (For the example given, 15kg) find the weight of the mass by using the formula F=W=mg... more
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College Algebra Math Algebra 1 Algebra 2

11/14/20

Write a function that models the new path of the water
You are watering a garden. The height h (in feet) of water spraying from the garden hose can be modeled by h(x)=-0.2x^2+0.2x+1.2 , where x is the horizontal distance (in feet) from where you are... more
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College Algebra System Of Equations

11/14/20

Can anyone help on this question?

A farmer saw some chickens and pigs in a field. He counted 26 heads and 80 legs. Determine exactly how many chickens and pigs he saw.
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College Algebra System Of Equations

11/14/20

Can anyone help on this question?

The admission fee at an amusement park is $5.50 for children and $15.00 for adults. On a certain day, 303 people entered the park, and the admission fees collected totaled $2,949.00. How many... more
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College Algebra Math Science Physics

11/13/20

What is Newton's 3 laws of motion?
What is Newton's 3 laws of motion?Month 11, Day 14For a mass having the weight equal to the Day recorded in 2 (For the example given, 15kg) find the weight of the mass by using the formula F=W=mg... more
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College Algebra Math Science Physics

11/13/20

How much work is done?
In the figure, the rock weighs 225 lb and is lifted 1 ft by the lever.How much work is done?The other end of the lever is pushed down 3 ft while lifting the rock. What force had to act on that end?
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College Algebra Math Science Physics

11/13/20

how much work (in J) does the driver do?
A motorist runs out of gas on a level road 220 m from a gas station. The driver pushes the 1,220 kg car to the gas station. If a 160 N force is required to keep the car moving, how much work (in J)... more
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College Algebra Math Science Physics

11/13/20

Find the ratio of their speeds immediately afterward.
Two persons on ice skates stand face to face and then push each other away (see figure below). Their masses are 70 and 90 kg.Find the ratio of their speeds immediately afterward.
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College Algebra Math Science Physics

11/13/20

How much energy (in J) is stored in the spring under this circumstance?
A 38 kg child uses a pogo stick to bounce up and down. The spring constant, k, of the toy equals 9,300 N/m.How much energy (in J) is stored in the spring under this circumstance?
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College Algebra Math Science Physics

11/12/20

How high (in m) will the swing be at the high point?
A child on a swing has a speed of 3.7 m/s at the low point of the arc.
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College Algebra Math Science Physics

11/12/20

how fast are the divers going when they hit the water?
The cliff divers at Acapulco, Mexico, jump off a cliff 25.2 m above the ocean. Ignoring air resistance, how fast are the divers going when they hit the water?
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College Algebra Math Science Physics

11/12/20

What is their kinetic energy?
A bicycle and rider going 14 m/s approach a hill. Their total mass is 57 kg.(a) What is their kinetic energy?(b) If the rider coasts up the hill without pedaling, how high above its starting level... more
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College Algebra Math Science Physics

11/12/20

What is the minimum speed that a thrown ball would need to just reach the ceiling?
The ceiling of an arena is 38 m above the floor. What is the minimum speed that a thrown ball would need to just reach the ceiling?
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College Algebra Math Science Physics

11/12/20

How fast must the tackle be going before the collision for their speed afterward to be zero?
A running back with a mass of 96 kg and a speed of 7 m/s collides with, and is held by, a 144-kg defensive tackle going in the opposite direction. How fast must the tackle be going before the... more
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College Algebra Math Science Physics

11/12/20

What was the original speed of the clay (in m/s)?
A pitcher throws a 0.70 kg ball of clay at a 3.0 kg block of wood. The clay sticks to the wood on impact, and their joint velocity afterward is 1.1 m/s. What was the original speed of the clay (in... more
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College Algebra Math Science Physics

11/12/20

How much energy (in J) is stored in the spring under this circumstance?
A 38 kg child uses a pogo stick to bounce up and down. The spring constant, k, of the toy equals 9,300 N/m.(a) By how much would the spring be compressed by the child if she simply balanced... more
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College Algebra

11/12/20

Need help on problem solving and using formulas

So i have a math problem that equals to 180 degree triangle i have to find all 3 angles that equal up to 180. The math problem says x, x+3, x-6. I'm confused on how to work the problem to find the... more
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College Algebra

11/12/20

What is 2square root 3X + 7 - 4 = X + 1?
The problem has a square root. I could not type it in the title section. See the problem below.Can you please show & explain the steps in solving? Thank you. 2 3X + 7 - 4 = X + 1?
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College Algebra Math Science Physics

11/11/20

 Find the net force on the runner using the alternate form of Newton's second law.
A runner with a mass of 85 kg accelerates from 0 to 6 m/s in 9 s. Find the net force on the runner using the alternate form of Newton's second law.
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