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Physics
Page 4
Questions (151,571)
A backpack full of books and an empty backpack are dropped from the same height. If there is no air resistance, which bag will
3 answers
asked by
no name
352 views
The force of gravity on different planets is shown in the table below. Place the objects below in order, from smallest weight to
1 answer
asked by
no name
169 views
Which analogy best describes voltage?(1 point)
Responses pressure of water moving through a pipe pressure of water moving through
6 answers
asked by
no name
902 views
which term refers to the rate of electricity passing through a circuit
5 answers
asked by
joe
2,071 views
The linear magnification produced by a spherical mirror is -1.Analysing this value state the type of the mirror and position of
4 answers
asked by
Snem
2,265 views
Skyscrapers sway in high-wind conditions. in one case, at t=2s, the top floor swayed 30cm to the left (-30cm), and at t=12, the
5 answers
asked by
Allison
3,161 views
if two forces 10N and 20N are inclined at angle 60degree to each other. Find the resultant force.
16 answers
asked by
John
13,304 views
I need help with this question with explanation. Thanks
A particle of mass m starts from rest at position x = 0 and time t = 0.
6 answers
asked by
Sara
7,618 views
N1V1 = N2V2 is always positive but M1V1 may or may not be equal to M2V2,Why?
5 answers
asked by
Oliver
1,297 views
what is the resistivity of a cylindrical materia wire whose 1.0 length has a resistant of 2.0ohm the diameter of the wire is
17 answers
asked by
david
4,587 views
A roughly spherical asteroid with a diameter of 1 km, and a mean density of 4 g/cm^3, hits the Earth with a relative speed 1.5
8 answers
asked by
qwerty
5,657 views
Newton’s cradle is a contraption where metal balls hang from a frame. When one ball is pulled and released, the collision
44 answers
asked by
I NEED HELP FAST PLS!!!!!
2,903 views
A force of 25N causes an acceleration of 2m/s^2 when acting on a 7kg mass. What is the frictional force also acting?
If body is
4 answers
asked by
Janine
2,221 views
A uniform meter rule is balance at 30cm mark when of 50grams is hanging from its zero cm mark.calculate the weight of the rule?
10 answers
asked by
wangai
4,480 views
In a closed system, an object with a mass of 10 kg moves at a velocity of 5.4 m/s. It collides with a second object that has a
9 answers
asked by
Student
3,374 views
A machine’s efficiency is determined to be 60%. The input work is 3,000 joules. What is the output work?
A) 180,000 joules B)
6 answers
asked by
Nobody
2,211 views
How is gravitational lensing related to dark matter?
ty !
7 answers
asked by
saturnity
3,005 views
The public transportation department measures the distance from a location using displacement vectors. To ride the bus to work
6 answers
asked by
girly girl
2,348 views
What is the surface tension of water at 23 degrees Celsius?
5 answers
asked by
Jane
2,553 views
Two similar waves are traveling through the same medium. Wave A has a frequency that is 3 times that of wave B.
How do their
2 answers
asked by
Iwannaknow
252 views
What happens when thermal energy is applied to an ice cube
It's water molecules lose kinetic energy so the ice cube melts It's
3 answers
asked by
Hi
394 views
How is a joule defined?(1 point)
It is the force needed to make an object with a mass of 1 kilogram accelerate by 1 kilogram per
46 answers
asked by
Anonymous
20,342 views
what is a newton?
-a force that changes the motion of an object -a force that pulls objects toward the ground -the unit in which
7 answers
asked by
YourEx
3,643 views
Just wanted to give out answers
For the kinetic and thermal energy quick check 1.What is kinetic energy? the energy of motion 2.
20 answers
asked by
Hail Hydra
12,501 views
What is the wavelength of a 20 Hz periodic wave moving at 40 m/s?
Use the equation below! a 2 m b 800 m c 0.5 m d 80 m
3 answers
asked by
kali
166 views
A steel wire 40 m long is suspended between two fixed points 20 m apart.
A force of 375 N pulls the wire down at a point 15 m
4 answers
asked by
Alex
2,641 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
4,081 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
3,011 views
Two missiles, 2420 km apart, are launched at the same time and are headed towards each other. They pass after 1.5 hours. The
5 answers
asked by
Jay
2,554 views
Theories About the Universe Quick Check answers
4 answers
asked by
Someone
1,516 views
A batted baseball leaves the bat at an angle of 30 degrees above the horizontal and is caught by an out fielder 400ft from the
4 answers
asked by
Nono
9,929 views
Suppose that, on a day when the outside temperature is 15 degrees Celsius, we fill a balloon with pure nitrogen gas, of which
10 answers
asked by
Nick
5,341 views
A rectangular of mass 10kg rest on an inclined plane with a coefficient of static friction of 0.55 and coefficient of kinetic
7 answers
asked by
elizabeth luhoya
2,829 views
A uniform rod of mass of 120g and a length of 130cm is suspended by a wire from a point 80cm from the rods left end . What mass
4 answers
asked by
Anonymous
309 views
An alternating current and a direct current flows simultaneously in the same conductor. if the effective value of the
5 answers
asked by
Student
3,193 views
How does the average kinetic energy of the molecules of water compares to the molecules of petrol
3 answers
asked by
Montshisi
174 views
a bicyclist rides off a flat roof at 13.4m/s, the roof is 3.6m above the ground, how far from the edge of the building does the
5 answers
asked by
susan
2,020 views
a battery has an e.m.f of 6 volts and an internal resistance of 0.4 ohm.it is connected to a 2.6 ohm resistor through a
9 answers
asked by
komal yaseen
12,507 views
an arrow is shot at a 30 degree angle with the horizontal. it has a velocity of 49 m/s how high will the arrow go? what
5 answers
asked by
Alexis
18,057 views
Two pole-vaulters just clear the bar at the same height. The first lands at a speed of 8.50 m/s, and the second lands at a speed
5 answers
asked by
Sam
5,061 views
Physics Question Please Help?
A wire, 20.0 m long, moves at 4.0 m/s perpendicularly through a magnetic field. An EMF of 40V is
7 answers
asked by
Crystal
3,707 views
a ray of light (f = 5.09 x 10^14 Hz) traveling in air strikes a block of sodium chloride at an angle of incidence of 30 degrees.
5 answers
asked by
Anonymous
7,181 views
An object is placed 20.0 cm to the left of a convex lens with a focal length of +8.0 cm. Where is the image of the object?
A)28
4 answers
asked by
jasmine
3,913 views
A coconut of mass 2kg is on a tree 5m tall.Determine the potential energy of the coconut at this height (take g=10ms^2)
4 answers
asked by
Nharnah
234 views
The weight of a body varies inversely as the square of its distance from the center of the earth. If the radius of the earth is
6 answers
asked by
MJ
8,637 views
An aircraft flies at an altitude of 30,000 feet. Determine the air temperature (in [K]), air pressure (in [Pa]) and air density
6 answers
asked by
sam
4,306 views
Which statement includes a description of velocity? (1 point)
O A bicycle moves 8 meters per second. O A marble rolls 30
13 answers
asked by
Idb
5,261 views
If a transparent material has a refractive of 2.0;
a) calculate the critical angle b) if the refractive index were less than 2,0,
5 answers
asked by
Cathy
3,024 views
A child holds a red ball why does the ball look red
7 answers
asked anonymously
2,977 views
A level fight bomber flying at 300 ft/s releases a bomb at an elevation of 6400 ft. Approximately how long before the bomb
5 answers
asked by
Angel
3,159 views
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