Newest Science Questions | Wyzant Ask An Expert

05/03/23

Distance, rate, and time

A cargo plane flew from the US across the Atlantic at two hundred seventeen mph, and flew back to the US at two hundred thirty-seven mph. Given that the first trip took two hours longer, how long... more

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Science Math Algebra 1 Algebra 2

05/03/23

Distance, rate, and time

Alyssa left downtown Houston, and three hours later, Joan left going 54 mph faster to catch up. After another two hours, Joan caught up. Find Alyssa's average speed.

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Science Math Algebra 1 Algebra 2

05/03/23

Distance, rate, and time

Melanie left Greensboro traveling sixty-nine mph. Sally, to catch up, left some time later driving at seventy-eight mph. Sally caught up after three hours. How long was Melanie driving before Sally... more

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Science Math Algebra 1 Algebra 2

05/03/23

Distance, rate, and time

Jessica traveled to burbank by car. Going there took 5 hours, and the return trip lasted 8 hours. Jessica averaged a speed of 53 mph while returning. Find the average speed of the trip there.

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Science Physics

05/03/23

A box is pushed up a frictionless ramp. The box has a mass of 5.6 kg and the pushing force acts in a direction parallel to the ramp.

The ramp is at an angle of 15 degrees with the horizontal. If the acceleration of the box is 2 m/s2 up the ramp, what is magnitude of the pushing force? (Answer in Newtons)

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Science Physics

05/03/23

An angry mascot kicks a giant plastic egg filled with candy.

The egg leaves the mascot's foot with a velocity of 8.4 m/s at an angle of 20 degrees above the horizontal. If you neglect air resistance, how far from the angry mascot will the egg land? Answer in... more

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Science Physics

05/03/23

You are feeling bored and decide to take a walk. You walk 49.4 m at a direction 30 degrees N of W and then 30 m east

What is the magnitude of the vector that describes your position with respect to your starting point. (If the first part of your trip is vector A and the second part is vector B, you are looking... more

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Science Math Algebra 1 Algebra 2

05/02/23

Coin word equation

Michelle has a purse that contains 7 silver coins and 5 gold coins. She draws one coin at random and then draws a second coin. What is the probability that the first coin is gold and the second... more

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Science Math Algebra 1 Algebra 2

05/02/23

Money word equation

During the sale, the price of the used car was marked down 10 percent. If the sale price of the used car was $1800, what was the price of the used car originally?

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Science Math Algebra 1 Algebra 2

05/02/23

Money word equation

Gerald peered into his wallet and found $270 in $10 and $20 bills. If there were 6 more $10 bills than $20 bills, how many of each did he have?

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Science Math Algebra 1 Algebra 2

05/02/23

Word equation, algebra one

A northbound train left at midnight. Three hours later, a southbound train left the same station. At 6 a.m. the two trains were 330 miles apart. Find the rate of each train if the northbound train... more

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Science Chemistry

05/02/23

Can someone check my answer for this chem question?

Using the slope of the Nernst regression line, use the formula 2.303RT/nF to solve for the Faraday constant.The overall balanced reaction is Zn(s)+Cu2+(aq)--> Zn2+(aq)+Cu (s)The slope is... more

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Science Physics

05/02/23

Conservation Question (Look at description for more details; PHYSICS Related)

How much heat (in Joules) is required to melt 0.31 kg of ice at 0oC and to raise the temperature of the melted ice to 15oC? The specific heat of water is 4186 J/(kg K) and the Latent heat of fusion... more

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Science Physics

05/02/23

Conservation Question (Look at description for more details; PHYSICS Related)

How much heat (in Joules) is required to increase the temperature of 2 kg of water from 20oC to 87.0oC? (The specific heat of water is 4186 J/(kg K))

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Science Physics

05/02/23

Conservation Question (Look at description for more details; PHYSICS Related)

A large container of water is open to the air and develops a hole with area 10 cm2 (.001 m2) at a point h below the surface of the water. If the water leaves the hole with a flow rate of 0.0033... more

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Science Math Algebra 1 Algebra 2

04/28/23

Probability word problem

Sonal has a jar that contains 6 blue marbles and 5 violet marbles. She randomly draws one marble and then draws another marble. What is the probability of drawing two violet marbles if the marbles... more

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Science Algebra 1 Algebra 2 Calculus

04/28/23

Distance word problem

Aaron and Jessica walked to the dock at 2 miles per hour, jumped into the boat, and motored to Denver at 46 miles per hour. If the total distance was 21 miles and the trip took 5 hours in all, how... more

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Science Math Algebra 1 Algebra 2

04/27/23

Finding consecutive numbers, algebra

Find four consecutive even integers such that if the sum of the first and third is multiplied by 3, the result is 28 less than five times the fourth.

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Science Math Algebra 1 Algebra 2

04/27/23

Finding consecutive numbers, algebra

Find four consecutive even integers such that if the sum of the first and third is multiplied by 3, the result is 28 less than five times the fourth.

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Science Math Elementary Education Algebra 1

04/27/23

Word equation, algebra 1

The 70-foot rope was cut into two pieces. One of the pieces was 10 feet longer than three times the length of the other piece. How long was each piece?

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Science Math Algebra 1 Algebra 2

04/27/23

Speed equation, algebra 1

At 7 a.m. gene left Austin and headed south at 10 miles per hour. At 8 a.m. Anne left from the same place and headed south on the same road. If Anne was 60 miles ahead by 3 p.m. on the same day,... more

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Science Math Algebra 1 Algebra 2

04/26/23