4,374 Answered Questions for the topic Science

Science Math Physics

01/22/21

How do I answer these physics questions and what answer should I get?
A 0.5 kg ball that is tied to the end of a 1.5 m light string is revolved in a horizontal plane, withthe string making a 30 o angle with the vertical.(a) Draw the free-body diagram for a conical... more
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Science Math Physics

01/22/21

How do I answer these physics questions and what answer should I get?
A space habitat for a long space voyage consists of two cabins each connected by a cable tocentral hub. The cabins are set to spin around the hub axis.(a) What forces are acting on an astronaut in... more
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01/22/21

Help with a Physics problem: How do I solve and what should I get?
A flat puck of mass M is rotated in a circle on a frictionless air table, and is held in this orbit by a mass m where mass m is at in equilibrium as shown in the figure. Find the tangential speed... more
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Science Math Physics

01/22/21

Calculate the speed of a car that travels 250 miles in 4.0 hours.
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Science Math Physics

01/22/21

What is the velocity of a group of explorers traveling from Antarctica to Australia, traveling 1500 miles in 48.0 hours? 31.3 mph north
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Science Math Physics

01/22/21

What is the velocity of a car that travels south 400 miles in 8 hours?
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Science Chemistry

01/22/21

A student placed a piece of metal with A mass of 14 g into a graduated cylinder containing 20 mL of water. The water level rose to 27 mL. What is the density of the metal?
A. 2/gm3B. 7 g/cm3C. 14 g/cm3D. 20 g/cm3
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01/22/21

physics question
The Earth rotates on its axis once every 24 hours. Satellites that complete one orbit around the earth in 24 hours basically stay in the same spot above Earth. This is called a geosynchronous... more
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01/21/21

Genetics Question

Does anyone know the answer to this question?Describe the role of caretaker genes and tumor suppressor genes and how mutations in these genes may lead to uncontrolled cell growth and the... more
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Science Math Physics

01/21/21

Timmy is playing by a well and drops in a rock. After 6.0 seconds, the rock hits the water below. What is his velocity

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Science Biology Carbon

01/21/21

Explain a possible path a Carbon atom might take if it began in a small animal and ended up in the stomach of a strict vegetarian.

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Science Biology

01/21/21

What happens during reproduction of a plant?
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Science Chemistry

01/21/21

Could somebody tell me how i would go about solving this chemistry problem and what answer I should get?
(a) How many electron pairs surround an atom of boron (B, element 5) bonded in thecompound BCl3?(b) How many electron pairs surround an atom of nitrogen (N, element 7) in thecompound NF3?(c) Write... more
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Science Math Chemistry

01/21/21

Could somebody tell me how i would go about solving this chemistry problem and what answer I should get?
A seashell that is composed largely of calcium carbonate reacts with a solution of HCl. As aresult, 1500 mL of dry CO 2 gas at STP is produced. The other products are CaCl 2 and H 2 O.a.) How many... more
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Science Chemistry

01/21/21

Could somebody tell me how I would go about answering this chemistry problem and what answers I should get?
For each reaction listed, identify the proton donor or acid and the proton acceptor or base. Label eachConjugate acid-base pair.
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01/21/21

How do I answer these physics questions and what answer should I get?
A 0.5 kg ball that is tied to the end of a 1.5 m light string is revolved in a horizontal plane, withthe string making a 30 o angle with the vertical.(a) Draw the free-body diagram for a conical... more
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Expert Answers •1

01/21/21

How do I answer these physics questions and what answer should I get?
You want to design the automobile racing circuit in Los Angeles to attract tourists to boosteconomy during Spring. First, you design the banked road for the racing cars to speed at 100mphfor a... more
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01/21/21

Halogenalkanes and alcohols?
What type of intermolecular force is found in haloalknes and alcohols? And why does alcohols have a much higher boiling points than haloalkanes?
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Science Math Physics

01/21/21

Energy Conservation (Physics)
A Tennis ball of 120 Kg is dropped from 5m height. Ignore the air resistance, What is the speed of the ball when it hits the ground.
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01/20/21

Please please help me with one question. please ASAP. please
Give the following compound's base name.A.) 2-penteneB.) 2-octeneC.) 2-octane
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01/20/21

Please help me with one question. please asap. please
Give the following compound's base name.A.) 2-penteneB.) 2-octeneC.) 2-octane
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01/20/21

AP Environmental Science Question Pls Help
You have heard that some shipping and transportation companies are considering a switch from gasoline and diesel to hydrogen fuel cells in their ground vehicles. These companies may ask the... more
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01/20/21

AP Environmental Question Pls Help
During the industrial revolution, people discovered that fossil fuels were a good replacement for manual labor. Explain two reasons that fossil fuels are preferable to manual labor, and discuss why... more
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01/20/21

Centripetal Acceleration
1: NASA uses large centrifuge to study the effects of large forces on astronauts prior to their going into space. A subject in the 20-G centrifuge, which has a radius of 8.9 m, can have a... more
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01/20/21

Pathophysiology Cancer Clinical Scenario Question

A 48-year-old man presents at his health care clinic with complaints of leg weakness. He is a heavy smoker and has had a productive cough for years. Subsequent diagnostic tests reveal he has a... more
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