3,398 Answered Questions for the topic College Algebra

#### 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...
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#### 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...
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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...
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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?

#### 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.

#### The change in momentum is the car's momentum when traveling 20 m/s minus its momentum when going 0 m/s. (Enter the magnitude.)

Using the alternate form of Newton's second law, compute the force (in N) needed to accelerate a 1,240 kg car from 0 to 20 m/s in 16 s. The change in momentum is the car's momentum when...
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#### Find the sprinter's linear momentum (in kg · m/s). (Enter the magnitude.)

A sprinter with a mass of 83 kg reaches a speed of 9 m/s during a race. Find the sprinter's linear momentum (in kg · m/s). (Enter the magnitude.)

#### what factor does the amount of mechanical energy stored in the spring change?

A spring is stretched by an initial amount from its relaxed state. If the spring is then stretched by three times that amount from its relaxed state, by what factor does the amount of mechanical...
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#### Compute how much kinetic energy was "lost" in this inelastic collision.

A 9,100-kg truck runs into the rear of a 1,000-kg car that was stationary. The truck and car are locked together after the collision and move with speed 8 m/s. Compute how much kinetic energy was...
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#### What is its speed (in m/s)?

A loaded gun is dropped on a frozen lake. The gun fires, with the bullet going horizontally in one direction and the gun sliding on the ice in the other direction. The bullet's mass is 0.04 kg, and...
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#### Write the kinetic, potential and total energy of a baseball having a mass of 0.145kg held 10 meters above the ground.

Write the kinetic, potential and total energy of a baseball having a mass of 0.145kg held 10 meters above the ground.
The baseball was released under the influence of gravity on Earth and...
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College Algebra

11/09/20

#### Construct a polynomial function with the following properties: fifth degree, 2 is a zero of multiplicity 4, −4 is the only other zero, leading coefficient is 2.

#### What is the acceleration experienced by passengers on this ride in g's?

The Kingda Ka roller coaster in New Jersey is the world's tallest ride of its kind. As the passenger cars are launched from rest at the start, they are accelerated uniformly to a speed of 57...
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#### How far does the jet travel during the 7 s?

A jet aircraft with a mass of 4,400 kg has an engine that exerts a force (thrust) equal to 60,200 N.(a) What is the jet's acceleration when it takes off? (Give the magnitude.)(b)What is the jet's...
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#### What is the force in pounds that acts on him during the launch phase of this ride?

The Kingda Ka roller coaster in New Jersey is the world's tallest ride of its kind. As the passenger cars are launched from rest at the start, they are accelerated uniformly to a speed of 57...
more

#### How far does the jet travel during the 7 s?

A jet aircraft with a mass of 4,400 kg has an engine that exerts a force (thrust) equal to 60,200 N.What is the jet's acceleration when it takes off? (Give the magnitude.)What is the jet's speed...
more

#### What is the force in pounds that acts on him during the launch phase of this ride?

The Kingda Ka roller coaster in New Jersey is the world's tallest ride of its kind. As the passenger cars are launched from rest at the start, they are accelerated uniformly to a speed of 57...
more

#### What is the net force on the motorcycle?

A motorcycle and rider have a total mass equal to 375 kg. The rider applies the brakes, causing the motorcycle to accelerate at a rate of −6 m/s2. What is the net force on the motorcycle? (Indicate...
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#### Find the elephant's weight in newtons.

The mass of a certain elephant is 5,567 kg.Find the elephant's weight in newtons.Find its weight in pounds.

#### A child weighs 339 N. What is the child's mass in kilograms?

A child weighs 339 N. What is the child's mass in kilograms?What is the child's mass in slugs?

#### What is the acceleration of the jet in m/s2?

On aircraft carriers, catapults are used to accelerate jet aircraft to flight speeds in a short distance. One such catapult takes a 17,600-kg jet from 0 to 68 m/s in 2.6 s. (Assume the catapult...
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#### What is the net force on the motorcycle?

A motorcycle and rider have a total mass equal to 375 kg. The rider applies the brakes, causing the motorcycle to accelerate at a rate of −6 m/s2. What is the net force on the motorcycle? (Indicate...
more

#### How far does the jet travel during the 7 s?

A jet aircraft with a mass of 4,400 kg has an engine that exerts a force (thrust) equal to 60,200 N.What is the jet's acceleration when it takes off? (Give the magnitude.)What is the jet's speed...
more

11/06/20

#### Help please i cant figure this out

The height of a projectile launched upward at a speed of 20 meters/second from a height of 225 meters is given by the function h(t)=-5sup(t,2)+20t+225. How long will it take the projectile to hit...
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College Algebra

11/06/20

#### college algebra

The length of a rectangle is 7 inches more than its width. The area of the rectangle is equal to 2 inches more than 2 times the perimeter. Find the length and width of the rectangle.

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