4,347 Answered Questions for the topic Science

Science Math Physics

01/03/22

Energy and work physics problem
During the first snowfall of the year a 23-kg physics textbook slides 18 m on level ground before coming to rest. If 430 J of work are done by friction, calculate the coefficient of friction... more
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01/03/22

Velocity of a bus during 12 s uniformly increased from 10 m/s to 15 m/s. Find the average velocity during 12 s
Velocity of a bus during 12 s uniformly increased from 10 m/s to 15 m/s. Find the average velocity of a bus during 12 s
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Science Biology

01/03/22

Assuming you are severely waisted, and you want to lose around 20 pounds by controlling your carbohydrate intake and engage in fat burning activities. In what form will your body release those fats?

Assuming you are severely waisted, and you want to lose around 20 pounds by controlling your carbohydrate intake and engage in fat burning activities. In what form will your body release those fats? 
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Science

01/01/22

After dna is unzipped what is the next step in dna replication

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Science Math Physics

01/01/22

Direction of instantaneous velocity question
The diagram shows a rock on the end of a string being whirled around in a circle in the horizontal plane. The motion is viewed from above and the stone is rotating clockwise. What are the... more
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Science Astronomy

12/31/21

photons and how the massless atom miraculously weighs less than an electron

an proton is a massless particle which can travel at the speed of light because of this. how does it weigh more than an electron.
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12/27/21

What is the difference between imitation and emulation ?
What is the difference between imitation and emulation ?
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Science Math Physics

12/22/21

Circular motion physics multiple choice question
The reason curves are banked is because:a) The coefficient of static friction is increasedb) A component of the normal force can contribute to the centripetal forcec) The gravitational force acting... more
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12/16/21

What is the role or part of zinc sulphate and purified water in a zinc sulphate ophthalmic solution?
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Science Math Physics

12/15/21

Pulley multiple choice question
Two masses m1 and m2 are attached to opposite ends of a cord placed around a pulley as shown. There is no friction between the pulley and it's axle, but there is friction between the string and the... more
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12/15/21

What is the relationship of an isotonic solution to an eye drop and dextrose saline solution?
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Science Math Biology Physics

12/14/21

Fraction of the fish’s total volume.
Suppose a fish has an average density of 1030 kg/m3, compared to the density of the surrounding water, 1000 k/m3. One way the fish can keep from slowly sinking is by using an air bladder (the... more
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Science Math Physics

12/13/21

circular motion physics problem
A rock of mass 200 g is attached to a 0.75 m long string and swung in a vertical plane.   a) What is the slowest speed that the rock can travel and still maintain a circular path?   b) What is the... more
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Science Math Physics

12/13/21

Circular motion physics question
Sometimes road surfaces have banked curves. Explain how this helps cars make turns more safely. Include a free-body diagram.
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Science Math Physics

12/13/21

gravity along a ramp physics question
A shoe sits on a ramp without moving. As the angle of the ramp is increased, the shoe starts to move. This is because:a) the normal force has increasedb) the coefficient of static friction has... more
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Science Math Physics

12/13/21

Newtons law Physics problem
A father is pulling his child on a sled in the snow. According to Newton’s Third Law, the force the father exerts on the sled is equal to the force the sled exerts on the father but opposite in... more
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Science Math Physics Graph

12/13/21

What does relative lines mean?
If I have to draw to different line a graph that represent two different thing. One is increasing x2 faster than the other. What does it mean by draw relative lines?
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12/13/21

Is this correct? - problem relating to a pendulum

Predict the time for 20 oscillations of a 1.0m long Pendulum on Planet U.We know L = 1.0m g=6.91m/s2T=2π N √L/gT=2π (20) √1.0/6.91= 150.18297T = 150 seconds If its correct than yay if not please... more
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Science Math Physics Gravity

12/12/21

Question regarding Pendulum on Fictional Planet

This one is a long as its all related. so confusing ...What would the time for 20 oscillations of a 1.0m long pendulum be on Planet X?Given :L = 1.0mAcceleration due to gravity on Planet X =... more
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Science Math Physics Gravity

12/12/21

What would the time for 20 oscillations of a 1.0m long pendulum be on planet x
Given :L = 1.0m G on Planet X = 6.91m/s2T=?How do I solve this and which formula do I use?
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Science Math Physics Graph

12/12/21

If you do the pendulum experiment on a planet with a larger gravity than Earths gravity what would the graph look like?
I know a graph for the length of the pendulum vs the period squared on Earth would be a positive slope . I also know that doing this on another planet with a higher gravity than Earth , the graph... more
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12/11/21

What happens if a large volume of hypotonic solution is administered intravenously? What about if it is a hypertonic solution?
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Science Math Physics Gravity

12/11/21

How do I rearrange t^2 = 4pi^2 L/g in y=mx format?
T2 = 4πi2 L/g How do I derive formula to make:L = y T2 = x 4πi2/g = m ?so far I have :L / T2 = g x 4π2Is this correct ?
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12/11/21

How would using a mass on the end of a pendulum string 3 times longer impact results?
Another very confusing thing. I know that T2 = 3L which is also T = √3L. that's where my understanding stops :( I don't understand how it will impact my overall results ...A detailed explanation... more
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12/10/21

what is the molarity of unknown HCL from the known NaOH concentration.
we did this titration lab and I got the following info. We used 6.8333 mL average of 0.7 molarity NaOH to neutralize 25.00 mL of HCL. what are the moles, molarity, ph the of the HCL in this lab?... more
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