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Physics
Page 3
Questions (149,823)
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
:)
1,957 views
The heat capacity of a material shows the amount of heat that can be taken in before the material increases in temperature.
6 answers
asked by
SPAMTON G SPAMTON
1,206 views
How much thermal energy is released when 500g of steam at 100° C condenses into water and cools to 50°C
Givens: m=0.5 kg t = 50
6 answers
asked by
AlphaStrike
7,470 views
Why do scientists observe blueshift in certain stars?(1 point)
Stars with higher temperatures emit more light waves at the blue
5 answers
asked by
amos goresatann
2,506 views
A glider on an air track is connected by springs to either end of the track. Both springs have the same spring constant,k , and
7 answers
asked by
annie
5,830 views
A spiral spring loaded with a piece of metal extends by 10.5cm in air. When the mental is fully submerged in water, the spring
6 answers
asked by
Joker
4,003 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
6,460 views
Give the scientific term for a wire that gets longer due to heat
4 answers
asked by
Kaay gee
222 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
4,489 views
Which describes a difference between solar wind and geomagnetic storm? Select the three correct answers
2 answers
asked anonymously
176 views
Two postal delivery workers have different routes. They both travel from the post office, to neighborhoods to deliver mail, and
6 answers
asked by
TWO
2,875 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
2,172 views
How do the frequencies and the speeds of yellow light and blue light compare?(1 point)
Which of the following is the best answer?
25 answers
asked by
Iwannaknow
1,516 views
What happens when a cold spoon is placed in hot soup?(1 point)
Responses The soup’s molecules have more potential energy, so
4 answers
asked by
meli
749 views
A 30 kg table is pulled by a constant force across a rough horizontal floor with an estimated coefficient of kinetic friction
1 answer
asked by
Deadrea
178 views
Which statement correctly describes the relationship between thermal energy and particle movement?
As thermal energy increases,
79 answers
asked by
Anonymous
18,150 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
7,603 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
4,314 views
Which statement is always true when nuclear fusion occurs
12 answers
asked by
Anonymous
11,196 views
How can a stationary metal sphere have kinetic energy, the energy of motion?
1 answer
asked anonymously
206 views
A giant model of a magnet is being built for a museum exhibit. What is the total surface area of the prop that will need to be
1 answer
asked anonymously
185 views
X, Y and Z are three points on a straight road.A car passes X with a speed of 5m/s and travels from X to Y with a constant
5 answers
asked by
Ajila Ayobami
3,984 views
1. The current flowing through an electric circuit is the derivative of the charge as a function of time. If the charge q is
7 answers
asked by
girly girl
2,673 views
An electromagnet is the most powerful type of magnet there is. It is a magnet with a current running through it that can be
5 answers
asked by
Emperor
1,734 views
A brother and sister are standing next to each other at rest on a surface of frictionless ice. The brother’s mass is exactly
4 answers
asked by
katie
6,440 views
modeling fusion quick check
19 answers
asked by
help
4,445 views
a force of 0.8N stretches an elastic spring by 2cm. find the force constant.
f e = k=? f=ke 0.8=0.02 * k k=0.8/0.02 k=40N/m
10 answers
asked by
sharon
4,793 views
forty 2.0 kg blocks 20.0 cm thick are used to make a retaining wall in a backyard. Each row of the wall will contain 10 blocks.
4 answers
asked by
AlphaPrimes
3,730 views
Two relays each with 20 ohms resistance and 0.16 henry inductance are connected in series. What is the equivalent impedance?
10 answers
asked by
student
5,894 views
Science fiction movies sometimes take place in space and contain scenes where things explode very loudly and brightly. Why is
10 answers
asked by
Please Help soon
2,998 views
which term best describes the force exerted on the structural parts of a building?
a. density b. load c. weight d. gravity
7 answers
asked by
no name
720 views
A stone is thrown up with a velocity of 20 m/s. While coming down, it strikes a glass pan, held at half the height through which
5 answers
asked by
Adnan
1,697 views
A ball of mass 0.2 kg strikes a force sensor and sticks to it. Just before impact the ball is travelling horizontally at a speed
7 answers
asked by
flirtyme
10,692 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
2,800 views
5. A student has the following data: V1 = 822 mL, T1 = 75°C and T2 = -25°C. He calculates V2 and gets -274 mL is this value
4 answers
asked by
Evie
4,244 views
A load of 80N extends a spring by 8cm. When the load is replaced by a copper block, the extension produced is 10cm. Calculate
5 answers
asked by
Axelle
2,167 views
Explain how spectrometer works by drawing a labelled flow diagram showing the main components of spectrometer and briefly state
1 answer
asked anonymously
54 views
How does the average kinetic energy of the molecules of water compares to the molecules of petrol
3 answers
asked by
Montshisi
158 views
Is exposure to natural radiation on earth dangerous?
A. Yes, because it is always present B. No, because it is natural C. No,
7 answers
asked by
Ooooh oooooh aaaaah aaaaaah 🦧🐒
668 views
A player throws a ball at an initial velocity of 36 m/s. The maximum distance the ball can reach (assume ball is caught at the
11 answers
asked by
Yass
14,034 views
A 52 kg woman is standing in a 26 kg cart that is moving a velocity of 1.2 m/s S. The woman staying rest then moves at a
4 answers
asked by
Anna
2,270 views
to push a 25 kg crate up a 27 incline, a worker exerts a force of 120 N, parallel to the incline. As the crate slides 3.6 m, how
5 answers
asked by
amy
5,369 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
3,599 views
A decorative pottery bowl with a diameter of 30 cm is used as a garden ornament . A rain shower fills it with water to a maximum
5 answers
asked by
Carrie
3,225 views
A golf ball was hit and projected in an angle of 60 degrees with the horizontal. if the initial velocity of the ball was 50m/s,
6 answers
asked by
YellowCorn
14,450 views
Theories About the Universe Quick Check answers
4 answers
asked by
Someone
1,501 views
a ball that was projected up at an angle of θ degrees with the horizontal has a flight time of 5.0s and covers a range of 49.0
4 answers
asked by
john
4,493 views
A Particle moves along the x-axis so that at any time t>0, its acceleration is given by a(t)= ln(1+2^t). If the velocity of the
5 answers
asked by
D-MO
10,043 views
What mass of ice at -14°C will be needed to cool 200cm³ of an orange drink(essentially water) from 25°C to 10°C?
7 answers
asked by
ayo
4,946 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
360 views
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