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Physics
Page 30
Questions (146,460)
What causes a maglev train to hover above the track?(1 point)
Responses repellant magnetic force repellant magnetic force
4 answers
asked by
456789
157 views
Gravitational Force Quick Check
Assuming these planets were similar in radius, which planet would an object weigh the most? (1
4 answers
asked by
i need help
416 views
A 1.0 kg ball is bounced high in the air. What is its total kinetic energy when it reaches its highest point?
a 30.0 joules b 0
1 answer
asked by
social studies
105 views
Why does a girl skateboarding on a half-pipe not remain in motion forever?
a none of the above b her energy is transformed into
4 answers
asked by
A
187 views
An octopus propels itself through the water by ejecting water through a funnel in its body. How does this demonstrate Newton’s
6 answers
asked by
wiggle
627 views
Metal and _____________________ are considered conductors.
a rubber b silk c air d water
3 answers
asked by
A
201 views
How does a simmering pot of spaghetti sauce illustrate convection currents? (1 point)
Warmer sauce at the bottom of the pot is
3 answers
asked by
I.D.C.I.I.C.I.S.S.I.N.T.D.W.H.T.B.D.
357 views
Two people push a box from opposite directions, the box does not move. Which statement best explains this result? (1 point)
O
4 answers
asked by
Idb
905 views
Ellen drops a ball from a cliff. Which statement best describes the ball's energy as it falls from her hand?
2 answers
asked by
no name
118 views
An arrow is accelerated for a displacement of 75cm [fwd] while it is on the bow. If the arrow leaves the bow at a velocity of
4 answers
asked by
sonya
2,191 views
Force f1 of 3,5N acts on an object to the right and force f2 of 4,3N acts on the object towards the left. QUESTION is :
7 answers
asked by
Lehlohonolo
1,959 views
Thank you for the help :)
A certain sample carries a current of 4A when the potential difference is 2V and a current of 10A when
4 answers
asked by
susan
3,210 views
You have 180 g of a radioactive substance. It has a half-life of 265 years. After 1,325 years, what mass remains?
4 answers
asked by
Anonymous
4,748 views
Two dynamics carts are placed end to end. Cart 1 (1.2 kg) is stuck to cart 2 (1.8 kg). Cart 1 is pushed with a force of 18.9 N
5 answers
asked by
Carrie
2,297 views
A 10 g bullet is fired into, and embeds itself in, a 2 kg block attached to a spring with a force constant of 19.6 n/m and whose
4 answers
asked by
Dee
4,144 views
Bailee explained that when traveling to the moon, he needs to pack light because the weight of objects on the moon is the same
48 answers
asked by
RoBot
7,358 views
A model shows rays of sunlight moving straight from the sun perpendicular to the surface of the Earth. What are these rays
4 answers
asked by
Z
2,054 views
Use the table to answer the question.
Wave λ (m) vw (m/s) L 120 600 M 150 600 N 100 600 O 50 600 The table shows information
4 answers
asked by
alan
742 views
What happens to the density of a material if you have a larger piece of it?
A)The density will be smaller because the mass
7 answers
asked by
NEED HELP
3,093 views
Kalibasib runs 12.0 m east and then 28.0 m in a direction 30.0 degrees east of north. How
far is Kalibasib from the starting
4 answers
asked by
Cole
3,999 views
A girl has a body weight of 400n. What upthrust does she need to float?
5 answers
asked by
Laura
1,025 views
What is the speed of an automobile in kilometers per second if it travels at 30 miles per hour
6 answers
asked by
Earl
1,585 views
During a crash, a dummy with a mass of 60.0 kg hits an airbag that exerts a constant force on the dummy. The acceleration of the
7 answers
asked by
smxnsmn
7,350 views
What are the units on both sides of the equation: v2 = 2ax? The answer is m^2/s^2, but I wanted an explanation for why that is
4 answers
asked by
help
4,795 views
Compared to wave A, wave B has a _____.
shorter wavelength and greater frequency longer wavelength and lower frequency shorter
6 answers
asked by
sammybear*-*
915 views
3×10^18 photons of a certain light radiation are found to produce 1.5 j of energy. calculate the wavelength of light radiation
7 answers
asked by
Anonymous
10,373 views
Traveling at approximately 186,000 miles per second, about how many miles does a beam of light travel in 2 hours?
F. 3.72 x 10^5
7 answers
asked by
Anonymous
3,536 views
Waves Unit Test
1 of 141 of 14 Items Question Use the diagram to complete the statement. An illustration shows the propagation of
39 answers
asked by
who dat
2,756 views
On which object will Earth’s gravity act with the greatest magnitude?
A.) a banana B.) a toaster C.) a television D.) a piano
5 answers
asked by
goodog
723 views
An electromagnet is a coil of wire with a current running through it. This creates an electromagnetic field. An additional
7 answers
asked by
mustache
4,407 views
If a ball is thrown directly upward with a velocity of 80ft/s, its height (in feet) after t seconds is given by y=80t-16t^2.
6 answers
asked by
lucy
4,315 views
1.A stone is thrown upward with an initial velocity of 20m/s.Aire resistance is ignored.(g=10m/S^2)
(a) How far does it take to
12 answers
asked by
Christopher.M.C.Brown
2,346 views
Which statement correctly classifies distance and displacement?
Both distance and displacement are scalar quantities. Both
4 answers
asked by
e
838 views
When sky divers initially fall from an airplane their velocity v in miles per hour after free falling d feet can be approximated
5 answers
asked by
Chiquita
2,402 views
A rock is placed into a graduated cylinder containing 80 mL of water. What is the volume of the rock if the water level rises to
9 answers
asked by
Miracle
3,274 views
A brick with a mass of 6kg is dropped vertically from a certain height.it takes 4,5 seconds for the brick to reach the
4 answers
asked by
Peter
1,026 views
Which of the following choices correctly explains why light separates into colors when moving through a prism?
a)The different
7 answers
asked by
Hi
5,405 views
I don't understand what this question ask for. I think it want me to take 7.2*10^-3 and rewrite it as 0.00072. Am i right?
The
4 answers
asked by
mm
7,988 views
A sensor light installed on the edge of a home can detect motion for a distance of 50ft. in front and with a range of motion of
5 answers
asked by
melissa
3,820 views
the position of a body at time t sec is s=t^3 - 6t^2 + 9t m. Find the body's acceleration each time the velocity is zero.
4 answers
asked by
sammi
4,328 views
A battery of emf 12v nd internal resistance (r) 1.5votls is connected to an external resistance (R) of 3ohms. (1.) Cal, the
7 answers
asked by
Usoro
2,490 views
a pulley system having 5 pulleys is used to raise a 450N load. find the mechanical advantage and hence the effort if the
6 answers
asked by
Albert
1,890 views
A stone of mass 20g is projected vertically upward with a catapult whose rubber has a force constant of 72Nm-1. If the tension
7 answers
asked by
Bukky
3,320 views
A ball bounces two-thirds of the distance it falls. If it is dropped from a height of 10 meters, how far does it move before
5 answers
asked by
ALI
2,469 views
A body is thrown vertically upward from the ground with an initial velocity of 96 ft/sec. Find the maximum height attain by the
5 answers
asked by
gillian
5,859 views
the mass of earth is 5.97 x 10^24 kilograms. The mass of the moon is 7.34 x 10^22 kilograms.
Part A: What is the combined mass of
13 answers
asked by
Jayson Angole
10,700 views
A skydiver prepares to jump out of a plane. Explain how gravity and air resistance will affect the motion of the skydiver before
18 answers
asked by
steve
6,910 views
A flower pot is dropped from the balconey of an apartment 28.5 metres above the ground. At a time of 1 second after the pot is
5 answers
asked by
just wondering
1,508 views
two forces of magnitudes 7N and 9N act at an angle alpha such that sin alpha=0.4. Find the magnitudes of the two possible
5 answers
asked by
georgina
2,389 views
the international space station orbits 350 km above earth's surface. earth's radius is about 6370 km.use the pythagorean theorem
6 answers
asked by
tee
6,913 views
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