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Physics
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Questions (149,192)
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
20,234 views
Sally puts on wool socks and rubs her feet on a nylon carpet. How does static electricity build up in Sally?(1 point)
Responses
4 answers
asked by
the real BARNY THE DINO :)
1,107 views
Sally puts on wool socks and rubs her feet on a nylon carpet. How does static electricity build up in Sally?(1 point)
Responses
10 answers
asked by
Hi
1,344 views
A track star in the long jump goes into the jump at 12 m/s and launches herself at 20.0° above the horizontal. How long is she
7 answers
asked by
Sarah
22,553 views
X:22
Y:18 Z:18 Air will move from______. Área z to area y Área y to área z Área x to área z Área y to área X========
54 answers
asked by
Nice
18,539 views
In what way does a lead apron protect human cells from X-rays?
A. It reduces the X-ray strength. B. The lead apron shields cells
4 answers
asked by
I hate school
332 views
You throw a 20-N rock vertically into the air from ground level. You observe that when it is 15.0 m above the ground, it is
6 answers
asked by
anton
29,037 views
A projectile fired from the edge of a 150 m high cliff with an initial velocity of 180 m/s at an angle of elevation of 30 deg
5 answers
asked by
Anonymous
12,288 views
Explain the metal/laundry line which hang droop on a warm day in kinetic molecular model
5 answers
asked by
Ompabaletse
292 views
What happens when a wave is absorbed by a material?(1 point)
Responses The wave supports the formation of an echo. The wave
6 answers
asked by
Cinnamon Roll (Izuku)
1,089 views
An airplane from rest accelerates on a runway at 5.50 m/s2 for 20.25s until it finally takes off the ground.
What is the distance
7 answers
asked by
Jonna mae
6,652 views
Which statement best describes the reflection of a wave?
4 answers
asked by
Need to know
331 views
A 4.0 kg, 36-cm-diameter metal disk, initially at rest, can rotate on an axle along its axis. A steady 5.5 N tangential force is
6 answers
asked by
Nathan
10,445 views
Electrons are ejected from a metallic surface with speeds ranging up to 4.50x10^5 m/s when light with a wavelength of 615nm is
5 answers
asked by
genius
7,152 views
Two skydivers of different masses jump from a plane. In three to five sentences, explain how their falls compare, including the
34 answers
asked by
Yiam
6,480 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
3,682 views
An ant is crawling along the x-axis such that the graph of its position on the x-axis versus time is a semi-circle. The total
7 answers
asked by
Parag
7,930 views
Three capacitors, each of capacitance 120 pF, are each charged to 500 V and then connected in series. Determine (a) the
5 answers
asked by
Jobs
3,467 views
explain briefly why a razor blade floats in water and when soap solution is carefully added to the water it sinks
6 answers
asked by
jamie
2,226 views
Use the table to answer the question.
Object Charge (C) A +1 B +2 C –1 D –2 Assuming other factors are held constant, which
13 answers
asked by
Gio
6,044 views
Resistors R1, R2, and R3 have resistances of 15.0 Ohms, 9.0 Ohms and 8.0 Ohms respectively. R1 and R2 are connected in series,
5 answers
asked by
Rony
11,105 views
A satellite orbiting Earth at an orbital radius r has a velocity v. Which represents the velocity if the satellite is moved to
22 answers
asked by
Student 11
9,179 views
A warm ocean transfers heat to the air above it. Which type of heat transfer is this?(1 point)
convection conduction*** radiation
50 answers
asked by
prestonplayz
13,335 views
Please help...
Let g be the acceleration due to gravity at the surface of a planet of radius R. Which of the following is a
4 answers
asked by
Kelly
4,624 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
12,456 views
a small piston in a hydraulic system has a force of 10 n and moves a distance of 100mm.calculate the force reqiured to move the
6 answers
asked by
noxolo
2,503 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
2,306 views
A stuntman drives a motorcycle off a 350 m cliff going 70 mph. The angle of elevation of the cliff is 21 degree. He is hoping to
7 answers
asked by
Anonymous
4,561 views
Which describes nuclear fission?(1 point)
<)>starts when two atoms slam together to form one, heavier atom <)>starts when a
15 answers
asked by
Anonymous
4,308 views
A child pulls a wagon by the handle along a flat sidewalk. She exerts a force of 80.0 N at an angle of 30.0 above the horizontal
5 answers
asked by
Rosie
4,496 views
Which provides evidence of universe expansion that supports the Big Bang Theory? Select the three correct answers.
The universe
3 answers
asked by
Pls help
178 views
Which statement is always true when nuclear fusion occurs
12 answers
asked by
Anonymous
11,177 views
Which option is a measure of the average kinetic energy of the particles in a substance?
a. phase b. thermal energy c.
30 answers
asked by
hmmmmmm
21,088 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
2,160 views
A 1200 kg car is moving at 95 km/h when the driver notices a deer down the road. He immediately moves his foot toward the brake
5 answers
asked by
Caroline
6,439 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
3,128 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
17,996 views
if a force of 100N stretches a spring by 0.1cm find.
a.the elastic constant b.the work done in stretching the spring 0.3cm if the
12 answers
asked by
Muhammad Umar
3,978 views
A 4kg block is lowered down a 37° incline a distance of 5m from point A to point B. A horizontal force (F = 10 N) is applied to
4 answers
asked by
ATT
10,629 views
62kg person in an elevator is moving up at a constant speed of 4.0m/s for 5.0s
a) calculate the work done by the normal force on
4 answers
asked by
lomonoyan
6,119 views
A daredevil drives a motorcycle around a circular vertical wall 100 ft in diameter. The coefficient of friction between tires
5 answers
asked by
16
5,288 views
the normal acceleration of a particle on the rim of a pulley 10 ft in diameter is constant @ 8000 ft/s^2. determine the speed of
4 answers
asked by
fatz
5,048 views
A particular circuit is made up of a battery, a switch, a buzzer, and wires connecting the components. All of the components are
5 answers
asked by
:)
1,942 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
9,881 views
Use the table to answer the question.
Sample Observation 1 The drop of food coloring spreads slowly. 2 The drop of food coloring
81 answers
asked by
Daniel
26,838 views
A person standing 2.0m in front of an amusement park mirror notice that his image is 3 times taller and erect what is the radius
5 answers
asked by
Vaishali
4,486 views
Suppose you drop a tennis ball from a height of 9 feet. After the ball hits the floor, it rebounds to 80% of its previous
7 answers
asked by
Keith
4,301 views
Three dynamics carts have force sensors placed on top of them.(cart 1, with mass of 2.2 kg, has one sensor --> cart 2, with mass
6 answers
asked by
anon
7,635 views
a concave mirror has a radius of curvature of 0.4 m find the position and the size of the image of an object 0.2 m high placed
5 answers
asked by
namanpreet
7,146 views
modeling fusion quick check
19 answers
asked by
help
4,429 views
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