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Physics
Page 10
Questions (151,746)
A -4.0-µC charge is located 0.30 m to the left of a +6.0-µC charge. What is the magnitude and direction of the electrostatic
5 answers
asked by
Marie
5,072 views
A 12 V car battery is found to be capable of storing 2.00 kWh of electrical energy. For a certain electric car, it is necessary
5 answers
asked by
Anusha
4,429 views
A small sphere X of mass M is placed a distance d from a point mass. The gravitational force on the sphere X is 90 N. Sphere X
5 answers
asked by
Nate
4,136 views
A 5.0 µC point charge is moved within an electric field and has an electric potential energy change of 10.0 J. What is the
4 answers
asked by
Pat
5,740 views
a 100g sample of wate at 90oC is added to a 500g sample of water at 10oC. what is the final temperature of the water
4 answers
asked by
julius
3,065 views
An object of mass 50 g floats in a liquid of density 2.5 g/ml. When the object is placed in a liquid of density 2.0 g/ml, it
4 answers
asked by
Valeriya
4,057 views
Suppose that a party balloon is spherical, has a radius of 16 centimetres and is filled with helium. Furthermore suppose that we
7 answers
asked by
Nick
4,703 views
A 50.0 g sample of lead starts at 22 degrees Celsius and is heated until it absorbs 8.7 X 10^2 of energy. Find the final
4 answers
asked by
Princess
1,940 views
A mass is oscillating with amplitude A at the end of a spring.
How far (in terms of A) is this mass from the equilibrium position
5 answers
asked by
Joe
5,005 views
A radar gun was used to record the speed of a car (in feet per minute) during selected times in the first 2 minutes of a race.
5 answers
asked by
Deondre
4,162 views
A source passing a stationary observer is emitting a frequency of 560 Hz. If the speed of sound is 345 m/s, what must speed of
4 answers
asked by
AlphaPlus
3,032 views
please help
The power rating of an electric motor which draws a current of 5 amperes from a 240-volt line is? a. 12.0 kW b. 1.2
4 answers
asked by
pub
2,037 views
If the temperature of a 500.0-g sample of liquid water is raised 2.00c how much heat is absorbed by the water?The specific heat
6 answers
asked by
gabriella
5,839 views
Calculate the work done by a stone mason lifting a stone of mass 15kg through a height of 2m.Take g=10N/Kg
5 answers
asked by
Peter
1,699 views
A mechanic uses a chain and block to lift a 875-kg engine 4.00 m to the top of the garage. The downward force in the chain over
5 answers
asked by
Holly
4,425 views
Explain, in terms of electrical energy, how the operation of a voltaic cell differs from the operation of an electrolytic cell
5 answers
asked by
Anonymous
3,490 views
A spring gun is made by compressing a spring (assumed to be perfect) and latching it. A spring of constant k = 60 N/ m is used
5 answers
asked by
Nazgul
2,550 views
an electron enters the region of a uniform,electric field with 3X10^6m/s and e=200 N/C . the horizontal length of the plates is
4 answers
asked by
hawi
2,391 views
What's the shortest air column , closed at one end, that will resonate at a frequency of 440.0Hz when the speed of sound is 352
5 answers
asked by
Melissa
2,950 views
How much time is required for sound to travel 1.4 km through air if the temperature is 30.0 c
4 answers
asked by
Melissa
2,435 views
A block and tackle having a velocity ratio of 5 is used to raise a load of 400N through a distance of 10m. If the work done
6 answers
asked by
Michael Nyame
3,642 views
a stone is thrown at an angle of 30 degrees above the horizontal from the top edge of a cliff with an initial speed of 12m/s. a
4 answers
asked by
S
3,402 views
Assume that all of the mass of a bicycle wheel is concentrated at its rim. Such a wheel of mass 1.2 kg and radius 30 cm starts
5 answers
asked by
kelsey
3,338 views
The moon is 384,000 km from the earth and makes 1 revolution in 27.3 days. Find its angular and linear speeds in its orbit.
4 answers
asked by
Art
2,376 views
How long would it take a 1 200 W heater to melt 1.00 kg of ice at -12.0°C, assuming all the energy from the heater is absorbed
4 answers
asked by
olive
4,765 views
Cody is thinking of an object that has a mass greater than 1 gram, but less. than 1 kilogram. Name two objects that he could be
4 answers
asked by
Anonymous
537 views
The driver of a 1.00X103 kg car traveling on the interstate at 35.0 m/s slams on his brakes to avoid hitting a second vehicle in
4 answers
asked by
kate
3,946 views
Which of the following correctly describes a sphere?(1 point)
4 answers
asked by
abfrmk3
523 views
An insulated beaker contains 300g of water initially at 30 degree celsius. water at 100 degree celsius is added until the
4 answers
asked by
annie
2,756 views
Two forces of 20 N and 5 N are acting at an angle of 120 degree between them. Find the resultant force in magnitude and
3 answers
asked by
Tushar
3,037 views
1) A piece of paraffin wax has a density of 9g/cm3, mass of 900g, and a volume of 100cm3. If the wax was melted to the liquid
3 answers
asked by
Alisha
1,504 views
Two bodies, one of mass 4kg and the other of mass 6 kg, approach each other head-on with speed of 2m/s and 8m/s, respectively.
4 answers
asked by
Send help
822 views
Given DIAGRAM 1.1 where FT means Tension and W means Weight, calculate the tension on the steel cable given the following
2 answers
asked anonymously
160 views
Check all the conditions to meet Pascal's principle.
The fluid must be incompressible. The fluid must be pure and homogenous. The
2 answers
asked anonymously
177 views
Given DIAGRAM 1.1 where FT means Tension and W means Weight, calculate the tension on the steel cable given the following
1 answer
asked anonymously
148 views
On Earth, the gravitational force of a certain military drone is 6.0 kg. What is the helicopter's gravitational force if it is
1 answer
asked anonymously
262 views
What does electric current measure?
A how well electrical energy moves in a circuit. B how frequently electrical energy moves in
1 answer
asked anonymously
109 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
204 views
Waves Unit Test
11 of 2011 of 20 Items Question The table shows the speed of ultrasound waves in different tissues in the human
1 answer
asked anonymously
35 views
A spring is stretched 20mm by a force of 10N. What is the work done by force?
1 answer
asked by
Devid John
98 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
5,264 views
a test car of mass 1250 kg is traveling at a speed of 72 kmph, when it is suddenly braked by locking the wheels. the average
4 answers
asked by
rajat
2,218 views
HELP unit 5 Nuclear Processes Test send some answers my way i appreciate it
18 answers
asked by
rez
9,604 views
the fence posts around a large pasture are 2.5m apart. a horse starts running west beside the fence. when the horse passes the
5 answers
asked by
Sarah
2,495 views
if the 5-ohm heater in problem 15 is placed with a 15-ohm heater, what current will the 15-ohm heater draw from the same power
5 answers
asked by
roland
1,865 views
A source emits sound uniformly in all directions. There are no reflections of the sound. At a distance r1 from the source the
4 answers
asked by
Anonymous
4,354 views
Match the gravity term to the correct example or definition.
Column A 1. An open parachute has __________ air resistance than
2 answers
asked by
kali
231 views
A girl pushes a load of mass 20kg to a distance of 10 metres in 5 seconds calculate (1) the work done (2) the energy used (3)
4 answers
asked by
Olorunnimbe
752 views
DISTANCE-TIME for RUNNERS
Time(s) 1 2 3 4 Sally's Distance(m) 2 4 6 8 Alonzo's Distance(m) 1 2 2 4 Make a distance-time graph
6 answers
asked by
Ashley
4,748 views
A large room is filled with mousetraps, each trap set with two plastic balls on the arm of the trap. A single plastic ball is
4 answers
asked by
Someone
404 views
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