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Science and Physics
Page 4
Questions (291)
A fisherman in a boat is drinking a cup of hot coffee. The large lake below his boat is full of cold water. Which statement is
1 answer
asked by
here to help
91 views
Which has more air resistance: a flat sheet of paper or a paper airplane?
A sheet of paper because it has a wider area A paper
1 answer
asked anonymously
29 views
Which object has kinetic energy
balloon rising in the sky O bowling ball on a rack O water stored in a tank • turtle resting on
1 answer
asked by
Formmial
64 views
to measure average speed, what data is required?
the direction of travel and the weight of the bike the direction and the
1 answer
asked by
no name
45 views
as you are sliding down a plastic slide in a playground your hair stands up on his end. which statement best explains why your
1 answer
asked anonymously
62 views
How is the mass number calculated for an atom involved in nuclear fusion?(1 point)
Responses It is the number of protons plus
1 answer
asked anonymously
52 views
Jack touches a negatively charged plastic rod to a metal sphere. How will the negative charges spread throughout the sphere? (1
1 answer
asked anonymously
87 views
When rollerblading,why is a fall less harmful on a wooden floor than on a concrete floor that has less give?Explain in terms of
4 answers
asked by
Emma
1,268 views
If you are flying to a city 800 miles away, what will be the difference in flight times between flying into a 40-mph headwind
2 answers
asked by
Christina
1,224 views
A baking dish is removed from a hot oven and placed on a cooling rack. As the dish cools down to 33° C from 181° C, its net
1 answer
asked by
Jim
1,197 views
How many parsecs are in 7,500 light-years?
1 answer
asked by
Mark
28 views
Which statement is a fact? A.Einstein had an obligation to condemn racism, and his support for Black Americans is more notable
4 answers
asked by
Jus-A-Viewer
37 views
Strictly speaking, you weigh a tiny bit less when you are in the lobby of a massive skyscraper than you do at home. Why is this
2 answers
asked by
Thy
1,071 views
On th decibel scale, the loudness of a sound, in decibels, is given by
D=10log(I/I0), where I is the intensity of a sound barely
1 answer
asked by
Help!!
1,077 views
A weight lifter lits a 1250 pound barbell 2 meters in 3 seconds. How much power was used to lift the barbell
2 answers
asked by
janice
1,043 views
24. A radio signal travels at 3.00 x 10^8 meters per second. How many seconds will it take for a radio signal to travel from a
2 answers
asked by
Leet Speaker
981 views
Which of the following is an example of increasing friction
A. Adding grease gears on a bike B. Waxing skis C. Oiling a squeaky
1 answer
asked by
Optional
23 views
A student uses a magnet to place a picture on the refrigerator door. Which statement explains how the magnet is able to stick to
1 answer
asked by
@slaxyo on discord
38 views
A student made an electromagnet using an iron bolt, copper wire coiled three times around the bolt, and a battery. How can he
1 answer
asked by
jihrtthiii
40 views
Thermal energy is transferred to a substance. Which change can occur?(1 point)
Responses The particles can gain potential and
1 answer
asked anonymously
77 views
A student tries to pick up a metal object with a magnet, but the magnet is too far away. What can he change in order to
1 answer
asked by
dee
47 views
When do we have to give up on an old theory and try to come up with a new theory?
Would it be when the old theory under goes
1 answer
asked by
Soly
906 views
A closed manometer is filled with an oil with density of 0.776 g/mL. What is the pressure in mmHg when the liquid column in the
6 answers
asked by
Henry
923 views
If you weigh 300 N on earth, then what is your mass and weight in mars?
2 answers
asked by
Charlaine
877 views
a projectile is fired from the vertical tube mounted on the vehicle which is travelling at the constant speed of 30kph. the
4 answers
asked by
Anonymous
889 views
What is the angular speed in rev/min of the Earth as it orbits around the sun?
I'm confused with this problem. I know we have to
2 answers
asked by
Priscilla
883 views
An airplane is flying at 80 kilometers per hour when a strong tail wind, traveling in the same direction at 5 kilometers per
1 answer
asked by
emoo
47 views
Which of the following quantities is a velocity?
a 15 m/s2 b 3 g/L in weight c 25 m/s d 10 km/hr eastward
1 answer
asked by
Jus-A-Viewer
23 views
What is the difference between speed and velocity?
a Velocity has direction. b Velocity has weight. c Velocity has time. d
1 answer
asked anonymously
44 views
If you could reach absolute zero then?
A) The system falls into quantum ground state B) The system will have an entropy of zero
3 answers
asked by
Derek
815 views
A woman is swimming when she hears the underwater sound wave from an exploding ship across the harbor. She immediately lifts her
7 answers
asked by
Malorie
790 views
A metal stays solid at fahrenheit temperatures below 1710.5 Determine (in terms of an inequakity) thoses celsius temperatures
2 answers
asked by
Sherry
767 views
Which gas has the greatest kinetic energy?
a) neon at a temperature of 200k b) neon at a temperature of 300k c) neon at a
2 answers
asked by
Cali234
765 views
A roasted turkey is taken from an oven when its temperature has reached 185°F and is placed on a table in a room where the
2 answers
asked by
Help! VERY URGENT!
696 views
Monica stepped outside and began to think how fast she is moving even when she is standing still.
Assume that the earth is a
2 answers
asked by
Todd
691 views
A stone is rotated steadily in a horizantal circle with a period T by a string of length L. If the tension in the stringis
2 answers
asked by
Dean
663 views
a mass is at rest with respect to the lab frame, while a frictionless turntable rotates beneath it. the frequency of turntable
3 answers
asked by
Garima
676 views
If the building absorbed so much heat that it turned into a liquid, then it would have undergone a phase change known as
2 answers
asked by
neel
640 views
A gardener holds a hose 0.75m above the ground such that the water shoot out horizontally and hits the ground at a point 20m
2 answers
asked by
rhamlyn casis
637 views
A boy is riding a skateboard. Why does the skateboard have the ability to do work?
Answer A. because it can slow down B. because
2 answers
asked by
Anonymous
656 views
A figure skater is spinning with her arms out wide. Will she spin faster or slower if she tucks in her arms? Why?
2 answers
asked by
Cassy
645 views
Right now there is gravity between you and your computer.
Right now there is gravity between you and your computer. True False
1 answer
asked anonymously
26 views
Assuming that the air temperature drops 6.5 Celsius degrees per 1000 m, compute the temperature at the tropopause if the
2 answers
asked by
Anonymous
590 views
A clean glass capillary tube is held vertically in water raised to a height of 7cm. The tube is down depressed and only 5cm of
1 answer
asked by
Edwin
602 views
7.1) The pressure in the esophagus is -10 mm Hg. Convert that pressure to centimeters of water, as it would be measured by a
2 answers
asked by
Sean Francis C. Nocete
570 views
If we have just counted 15 seconds between the lightning and thunder, how far away do we predict the center of the thunderstorm
2 answers
asked by
anabelle
584 views
he sun radiates like a perfect blackbody with an emissivity of exactly 1.
(a) Calculate the surface temperature of the sun, given
2 answers
asked by
epi
582 views
3 beakers are being heated (small, medium and large). consider the first two. both beakers are filled with water and heated for
2 answers
asked by
lissa
555 views
What is the minimal resistance of a 100 W light bulb designed to be used in a 120 V circuit?
Answer 12.0 Ω 144 Ω 1.2 Ω 0.83 Ω
3 answers
asked by
Anonymous
527 views
Which of these pairs of objects has the smallest number of powers of ten difference in their sizes?
Select one: a. Earth's moon's
2 answers
asked by
may
571 views
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