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Physics
Page 59
Questions (147,215)
A rectangular storage tank 4m long by 3m wide is filled with paraffin to a depth of 2m given that the density of paraffin is
5 answers
asked by
yalina
2,593 views
A flat (unbanked) curve on a highway has a radius of 220m. A car rounds the curve at a speed of 25m/s. What is the minimum
4 answers
asked by
Shelby
4,813 views
Why is it possible to float a pin on the surface of water?
A. The molecules of water on the surface change bonding as they dry
4 answers
asked by
Cortney
2,080 views
A 15 ft ladder leans against a wall. The bottom of the ladder is 4 ft from the wall at time t=0 and slides away from the wall at
4 answers
asked by
saud
7,266 views
You stand at the top of a cliff while your friend stands on the ground below you. You drop a ball from rest and see that it
4 answers
asked by
SAM
3,803 views
A bird of mass 0.8kg hovers upwards by beating the mass of effective area 0.5m^2. (i) what is its upthrust? (ii) estimate the
4 answers
asked by
Edwin
1,072 views
a atapult launcher on an aircraft carrier accelerates a jet from rest to 72m/s. The work done catapult during the launch is 7.6
4 answers
asked by
Clayton
1,843 views
A car has a uniform velocity of 108km/h . How far does it travel in half minutes?
6 answers
asked by
Smartson
762 views
calculate the value of g at 1000M above the surface of the earth
5 answers
asked by
Ninu
922 views
A ball of mass 0.5kg is dropped from a height of 10m and rebound with a velocity 1/3 of that before impact. The height reached
5 answers
asked by
Kehinde Emmanuel
1,964 views
A large truck with a mass of 3200 kg is pulling a trailer with a mass of 2400 kg. Both are accelerating at a rate of 0.45 m/s^2
4 answers
asked by
liz
2,851 views
A mettalic sphere of radius a carries a charge Q. It is brought in contact with an uncharged sphere of radius b . what will be
5 answers
asked by
Anonymous
3,136 views
A 5.3-kg block is pushed 2.3 m up a vertical wall with constant speed by a constant force of magnitude F applied at an angle of
4 answers
asked by
sherry
7,582 views
Galileo's first telescope used a convex objective lens with a focal length f = 1.65 m and a concave eyepiece. When this
3 answers
asked by
Samantha
1,173 views
Consider two cases in which the same ball is thrown against a wall with the same initial velocity. In case A, the ball sticks to
4 answers
asked by
Anonymous
2,238 views
Which of the following is an appropriate measure of electric power on a toaster label?
A. 110 V B. 2.0 A C. 220 W D. 55 Ω
6 answers
asked by
Me and I
2,121 views
13. A generator produces 100 kW of power at a potential difference of 10 kV. The power is transmitted through cables of total
6 answers
asked by
shanza
4,208 views
Calculate the current in the 240-Ώ filament of a bulb connected to a 120-V line.
Power = IV
6 answers
asked by
Tracee
3,769 views
A 1200-N crate is being pushed across a level floor at a constant speed by a force of 260 N at an angle of 20.0° below the
5 answers
asked by
Elaine Jetton
2,814 views
(a) What is the electric potential a distance of 2.3 10-15 m away from a proton?
Answer for this part is :626000 (b) What is the
4 answers
asked by
SHUBHANGI
2,812 views
We were doing a refraction lab where you passed a lazer beam through a water in a semi-circular dish. I was wondering why we
7 answers
asked by
Lena
2,912 views
a metal spoon is placed in one of two indentical cups of hot coffee. Which cup will be cooler after a few minutes?
6 answers
asked by
rosie
7,336 views
In order to weight a boy in the laboratory a uniform plank of wood A B 3.0m long, having a mass of 8.0kg is pivoted about a
9 answers
asked by
Sekou
793 views
An artificial satellite is going round the earth, close to its surface. Calculate time taken by it to complete one round. Take
4 answers
asked by
Bargav
830 views
If 200 cm3 of H2 gas contained in a cylinder under a pressure of 1200 mmHg are forced into a cylinder whose volume is 400 cm3
4 answers
asked by
Jack
672 views
Three vectors are shown in the figure. Their magnitudes are given in arbitrary units. Determine the sum of the three vectors.
6 answers
asked by
Rachel
7,004 views
If the mass of a proton is 1.67×10^-27kg and the mass of an electron is 9.11×10^-31kg.Calculate the force of gravitation
4 answers
asked by
Cherish
1,839 views
Tarzan swings on a 33.0 m long vine initially
inclined at an angle of 31.0◦ with the vertical. The acceleration of gravity if
4 answers
asked by
Jessica
3,500 views
A cyclist starts from rest and accelerates at 2m/s2, for 2second. Her velocity remains constant for the following 4second. The
5 answers
asked by
Physics
1,412 views
A 5.0 Ω resistor, a 9.0 Ω resistor, and a 12.0 Ω resistor are connected in parallel across a 24.0 V battery.
a) What is the
4 answers
asked by
Danny
2,943 views
A 200.0 N force moves a 120.0 kg crate on a friction less surface from rest to final speed of 9.6 m/s. what is the displacement
4 answers
asked by
tommy
952 views
A long thin rod of mass M = 2:00 kg and length L = 75:0 cm is free to rotate about its
center as shown. Two identical masses
4 answers
asked by
Lindsay
5,715 views
A motorcyclist is trying to leap across a canyon by driving horizontally of the cliff that is 70.0 m high at 38.0 m/s. Ignoring
5 answers
asked by
Angel
4,704 views
A uniform beam of length 1.0 m and mass 16 kg is attached to a wall by a cable that makes an angle of 30 degrees with the end of
5 answers
asked by
Sam
5,216 views
how much is the energy stored in hooke's law spring increased when its stretch is increased from 8 cm to 16 cm?
why is it 300%?
4 answers
asked by
mc
3,255 views
An incident X-ray photon of wavelength 0.2800nm is scattered from an electron that is initially at rest. The photon is scattered
4 answers
asked by
Leah
1,403 views
A heat engine operating b/n 100°c and 700°c has an efficiency equal to 40% of the maximum theoretical efficiency. How much
7 answers
asked by
Chaltu
1,329 views
a 50ml volume of gas is measured at 20 degree celsius,if the pressure remains constant what will be the volume of the gas at 0
4 answers
asked by
Vianca
913 views
a body of mass 25kg moving at 3m/s on a rough horizontal floor is brought to rest after sliding through a distance of 2.5m on
11 answers
asked by
emmanuel
4,230 views
Simple Machines
A simple wheel and axle has a wheel diameter of 2.3m and an axle diameter of 92mm. If an effort of 26N is
5 answers
asked by
Danny
2,884 views
The position of a particle moving along an x axis is given by x = 15t2 - 2.0t3, where x is in meters and t is in seconds.
(a)
4 answers
asked by
help
4,464 views
The human eye is most sensitive to light having a frequency of about 5.3*10^14 Hz, which is in the yellow-green region of the
4 answers
asked by
rick
2,809 views
A tired squirrel of mass 1kg does push ups by applying a force to elevate it’s centre of mass by 5cm as shown in the following
3 answers
asked by
Ram
783 views
The position of a particle in rectilinear motion is given by s(t) = tln(1/t) for t>0, where t is in seconds.
A. Find the time
10 answers
asked by
Miller
1,346 views
What is the ratio of turns for the secondary to primary coils in a step-down transformer, if the input voltage from a substation
4 answers
asked by
Austin
1,594 views
During takeoff, a plane goes from 0 to 50 m/s in 8s. What is its acceleration? Halos fast is it going after 5 s? How far had it
5 answers
asked by
Ang
5,082 views
A potter's wheel is rotating around a vertical axis through its center at a frequency of 1.8rev/s . The wheel can be considered
5 answers
asked by
Joe
3,481 views
Brandon hit a baseball upward with an initial speed of 120 feet per second. How much later did Ollie catch the ball? Use the
4 answers
asked by
John
1,298 views
1. Water at a pressure of 3.00 x 10 5th Pa flows through a horizontal pipe at a speed of 1.00 m/s. The pipe narrows to
7 answers
asked by
Leo
8,821 views
How do I calculate the amount of heat needed to convert 96g of ice at -24 degrees celciua to water at 28 degrees celciua?
4 answers
asked by
Emma
1,943 views
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