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Physics
Page 8
Questions (151,571)
Which statement correctly compares his motion during the first 10 minutes to his motion during the last 10 minutes?
* 1 point He
13 answers
asked by
science
1,050 views
The following samples are all water. Other than the temperature, all the water samples are identical. Which of the four samples
1 answer
asked by
kali
185 views
Which of the following interactions in the data set below will have an attractive electrical force?
Interaction Object 1 Charge
5 answers
asked by
A
556 views
An exercise bicycle's flywheel is 30cm in diameter and 2.5 cm thick and is constructed from steel (density=7850 kg m3) its
4 answers
asked by
dmkp
946 views
A machine has a velocity ratio of 6 and is 80% efficiency.What effort would be needed to lift a load of 300 with the help of
6 answers
asked by
Bright
4,947 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
10,436 views
A tennis player hits a 0.1-kilogram tennis ball with her racket from the north end of a court. Her racket was traveling at 65
10 answers
asked by
Ieasha30
2,186 views
In which situation would the momentum of a moving object increase?
Two forces of equal magnitude act on the object in opposite
5 answers
asked by
Ieasha30
1,363 views
2 cells, each of Emf 2v and internal resistance 0.5ohms are connected in series .they are made to supply current to a
7 answers
asked by
Odeyemi
2,705 views
) A batter hits a baseball so that it leaves the bat at speed
Vo = 37.0m/s at an angle ao = 53.1°, at a location where g = 9.80
7 answers
asked by
hehe
26,948 views
An electron is excited from the n=1 ground state to the n=3 state in a hydrogen atom. Which of the following statements are
7 answers
asked by
Anonymous
19,810 views
A hydrometer consists of a spherical bulb and a cylindrical stem with a cross-sectional area of 0.400 cm^2. The total volume of
5 answers
asked by
Deanna
4,421 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
1,933 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
5,001 views
two cars start on opposite sides of a circular track. One car has a speed of 0.015 rad/s;the other car has a speed of 0.012
5 answers
asked by
israa
1,993 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
4,422 views
When a yellow light shines on a photosensitive metal, photoelectrons are emitted. As the intensity of the light is decreased,
4 answers
asked by
ashley --
2,741 views
Charges of +2.0, +3.0 and -8.0µC are placed at the vertices of an equilateral triangle of a side 10 cm. Calculate the magnitude
5 answers
asked by
VHCP
3,686 views
A ball is thrown vertically into the air so that its height s after t seconds is given by the equation, s=-1/27(t^2)+4√t. Find
4 answers
asked by
Glen
2,300 views
Q)1 : Alpha particles travel through a magnetic field of 0.360T and are deflected in an arc of 0.0820m. Assuming the alpha
5 answers
asked by
Marium
2,137 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
3,336 views
activity to demonstrate the fact that for a metallic wire of uniform material density and thickness, the resistance increases
4 answers
asked by
yash
861 views
An airplane flying east at 360 km/h passes over Pearson airport 10 minutes before a second airplane flying south at 480 km/h
4 answers
asked by
Anonymous
709 views
A string with a linear density of 0.035 kg/m and a mass of 0.014 kg is clamped at both ends. Under what tension in the string
4 answers
asked by
Tina
2,637 views
Dynamics question please help i am stuck...!
A model helicopter of mass 5.0 kg rises with constant acceleration from rest to a
4 answers
asked by
Jinx007
1,717 views
A voltage at a frequency of 500KHz is maintained across a coil with a variable capacitor .when the capacitor is set to 455pF,
6 answers
asked by
Jade
544 views
A spring with 50 N/m hangs vertically next to a ruler. The end of the spring is next to the 21-cm mark on the ruler.If a 2.5-kg
4 answers
asked by
Anonymous
2,907 views
STATE HOOKES LAW. WHAT IS THE FORCE REQUIRED TO PRODUCE AN EXTENSION OF 1CM. IF AN EXTENSION OF 8.0CM CAN BE PRODUCED BY A LOAD
3 answers
asked by
AMINAT
285 views
An object weighing 60N rest on a slope forming an angle of 17.5 degrees with the horizontal. A force of 44N parallel to the
3 answers
asked by
olivia
533 views
A 310,000 GRT vessel needs to achieve a steady speed of 13 knots after exiting a canal. If the speed of the vessel before
2 answers
asked anonymously
295 views
Drag each item to indicate whether it is a characteristic of dark matter or baryonic matter.(2 points)
Put responses in the
3 answers
asked by
billy bob joe
126 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
147 views
a metal ball of radius R is placed concentrically inside a hollow metal sphere of inner radius 2R & outer radius 3R. The ballis
3 answers
asked by
Star
2,250 views
Describe the specific attributes of a prism
1 answer
asked anonymously
419 views
In one or two sentences, make and justify a claim about two aspects of the picture that illustrate behaviors of light.
(2 points)
1 answer
asked by
queen
64 views
Answer this please: There are two objects, one with a +2 charge and one with a -2 charge. If we increase the distance between
1 answer
asked anonymously
45 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
2,216 views
1. Determine the effort required to lift a load of 100 N using:
(a) Using a single fixed pulley (b) A single movable pulley (c)
5 answers
asked by
Mustafa khamis shaaban
383 views
The relative density of a solid steel is 7.8 A. Find the mass of the solid steel cube of side 10cm. B. What volume of steel has
5 answers
asked by
Anonymous
653 views
The cannon on a pirate ships shoots cannon balls with a speed of 350 m/s (the muzzle velocity). The cannon can be adjusted to
7 answers
asked by
Tyger2020
3,012 views
a rope is strung between two cliffs. A mountain climber weighing 100 kg is halfway across the rope when the rope forms an angle
7 answers
asked by
Kathleen
5,142 views
Stored Energy Changes I Quick Check
1. A horseshoe magnet is moved toward a pile of iron shavings. The iron shavings divide and
24 answers
asked by
Connexus Student
19,307 views
what is a newton (1 point)
A. a force that changes the motion of an object*** B. a non-contact force C. the unit in which force
7 answers
asked by
allie
1,329 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
1,863 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
744 views
A blacksmith strikes a piece of metal with a hammer repeatedly. The metal slowly begins to glow as the temperature increases,
15 answers
asked by
PLZ HELP
4,775 views
If 100.0 g of water at 90'C is added to 50.0 g of water at 10'C, estimate the final temperature of the water. explain your
4 answers
asked by
Perrie E.
1,066 views
In which case would the kinetic energy of particles be increasing? (1 point)
Metal is melted at 1,300°C. Metal is at room
58 answers
asked by
Daniel
23,495 views
1) A 20 kg rock is on the edge of a 100 m cliff.
a. What potential energy does the rock possess relative to the base of the
5 answers
asked by
Isis
11,942 views
The output voltage of an AC generator is given by Δv = (180 V) sin (70πt). The generator is connected across a 13.0-Ω
4 answers
asked by
Matt Will
8,983 views
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