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Physics
Page 8
Questions (149,197)
The velocity of a particle on the x-axis is given by the differential equation dx/
dt= t^2/ 2 and the particle is at x = 4 when t
6 answers
asked by
John
1,834 views
A simple wheel and axle is used to lift a bucket of water from a well the radii of the wheel and axle are 20cm and 4cm
5 answers
asked by
Rodas
3,168 views
A sample of helium behaves as an ideal gas as it is heated at constant pressure from 273 K to 353 K. If 25.0 J of work is done
5 answers
asked by
Sean
7,779 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
3,044 views
For the next part, you will need to know that the position d of an object attached to a spring that oscillates with period
5 answers
asked by
k
4,830 views
An object weighs 15N in air and 13N when submerged in water. What is the density of the object.
5 answers
asked by
Striker
6,452 views
A 0.20-kg mass is hung from a vertical spring of force constant 55 N/m. When the
spring is released from its unstretched
5 answers
asked by
Syed
4,434 views
A Frisbee is thrown horizontally with a speed of 12 m/s. If the Frisbee moves a horizontal distance of 15 m, how long will it
5 answers
asked by
Jhoy
4,187 views
A 3.00 - µF and a 4.00 - µF capacitor are connected in series, and this combination is connected in parallel with a 2.00 - µF
5 answers
asked by
Nade
5,236 views
Two reasons why displacement method is not suitable when determining the volume of a charcoal?
5 answers
asked by
Michael
2,831 views
A particle is moving at 0.75c relative to a lab on Earth. By what percentage is the Newtonian expression for its momentum
in
4 answers
asked by
David
2,062 views
Estimate the total binding energy for copper.
550 MeV Estimate the energy, in joules, needed to break a 3.0g copper penny into
4 answers
asked by
Leila
1,873 views
The angular speed of a larger pulley wheel (radius=15cm) is 50 rev./min. Find the angular speed of the smaller wheel
4 answers
asked by
Mary
1,465 views
Which statement about electric charges is correct?(1 point)
Responses Two objects with negative charges will attract each other.
1 answer
asked by
Hi
223 views
Which statement best describes the reflection of a wave is it a wave transfers its energy to a material wave passes through the
1 answer
asked anonymously
107 views
Why is glass a good insulator?(1 point)
Responses The atoms in glass hold on tightly to their negatively charged particles. The
1 answer
asked by
baby weiner
87 views
A hole 3cm in diameter is to be punched out of a steel plate 8cm thick. The shear stress of the material is 670GPa. What load is
5 answers
asked by
Danny
5,215 views
if there are eleven resistors of 33k ohms each in parallel, what is the total resistance?
5 answers
asked by
dumon
3,376 views
A boat is travelling at 8.9km/h relative to the water in the river.The boat aims straight for the opposite bank of the river
6 answers
asked by
Has
1,357 views
A 10kg mass is supported by two strings of length 5 m and 7 m attached to two points in the ceiling 10 m apart. Find the tension
7 answers
asked by
Simba
7,284 views
The energy given off by 300 grams of an alloy as it cools through 50°C raises the temperature of 300 grams of water from 30°C
5 answers
asked by
jane
5,377 views
1. A bottle of water is taken out of a refrigerator and put on a kitchen table. As the bottle of water warms up, what happens to
6 answers
asked by
Davion
4,173 views
A tennis ball is dropped down a stairwell.
Which statement BEST describes the energy of the tennis ball? A. The tennis ball’s
4 answers
asked anonymously
247 views
What would happen to a substance at the theoretical temperature of 0.K? (1 point)
O The substance's particles would stop moving
7 answers
asked by
I.D.C.I.I.C.I.S.S.I.N.T.D.W.H.T.B.D.
449 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
2,668 views
a uniform disk of moment of inertia 75kgm^2 and radius of gyration 3m rotates with an angular velocity of 2rad/s. determine d :
m
5 answers
asked by
samson
2,167 views
An airplane's velocity with respect to the air is 580 miles per hour, and it is heading N 60 degrees W. The wind, at the
6 answers
asked by
Hannah
6,410 views
A 40 kg ball is pukled to one side until it is 1.5 above itd lowest point. What will be its velocity as it passes through its
5 answers
asked by
Merely
4,194 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
26,911 views
A driver traveling at 50mph is 80m from a wall ahead. If the driver applies the brake
immediately at a reaction time of 2 seconds
4 answers
asked by
Abdikafi
7,630 views
Find the resultant of two vectors of 3 units and 4 units acting at a point 0 at an angle of 45 degrees with each other
14 answers
asked by
Yemi
4,268 views
A water-skier is being pulled by a tow rope attached to a boat. As the driver pushes the throttle forward, the skier
4 answers
asked by
Brookeneed
6,965 views
Starting from rest, a 4.0-kg body reaches a speed of 8.0 m/s in 2.0 s.
What is the net force acting on the body?
4 answers
asked by
Emily
11,540 views
how much energy is released to the environment by 50.0 grams of condensing water vapor?
5 answers
asked by
khasan
7,732 views
Given a 10-V power supply, would a 20-ohm resistor and a 5-ohm resistor need to be arranged in parallel or in series to generate
16 answers
asked by
Abby
3,125 views
A car slows down from 108 km/h to 90 km/h over the course of 4 s and 0.1 km. The force of the brakes was 1000 N. What is the
5 answers
asked by
Markous
2,708 views
A 300lb car is moving at constant velocity onn a level concrete road. How much force is needed to keep it moving if the u=0.04
4 answers
asked by
bits
1,550 views
a relative density bottle weight 20g when empty 80g when fill with water and 100g when with a liquid. find the relative density
7 answers
asked by
Anonymous
1,716 views
Two masses are hung are connected by a light cord and hung from a frictionless pulley of negligible mad are shown. Mass
6 answers
asked by
Kam
8,046 views
Two charged spheres of charge q and mass m are each hanging from strings and are at equilibrium as shown below:
Give an
4 answers
asked by
Anonymous
1,786 views
A 100g sample of water at 90 degrees celsius is added to a 100g sample of water at 10 degrees celsius.
The final temperature of
5 answers
asked by
Shellby
6,203 views
a grasshopper jumps at an angle 50 degrees from the ground with an initial velocity of 5 m/s. when air resistance is absent,
5 answers
asked by
Clevy
2,131 views
A load of 4N extends a spring by 10mm. What load would extend it by 15mm?
5 answers
asked by
Luyando
737 views
Heat from burning a fuel is absorbed by a copper calorimeter. The calorimeter has a mass of 81.34 g and contains 200.0 g of
4 answers
asked by
lomonoyan
1,032 views
a 3200-lb elevator cab is supported by a cable in which the maximum safe tension is 4000 lb. (a)what is the greatest upward
4 answers
asked by
esther
1,927 views
A man travels along a square path each side of length 100m with a velocity of 40m/s,50m/s 40m/s and 50m/s respectively calculate
4 answers
asked by
adam
306 views
Which of the following correctly describes a sphere?(1 point)
4 answers
asked by
abfrmk3
491 views
(a) Photoelectrons with a maximum kinetic energy of 7.6eV are emitted from a metal when it is illuminated by ultraviolet
3 answers
asked by
Anon
1,771 views
The mass of the roller coaster below is 80 kg. It starts from rest at a height of 30 m and reaches a speed of 20 m/s at point B.
4 answers
asked by
Heylee Green
1,010 views
calculate the volume occupied by 10^22 molecules of a gas 300 k and 760 mm pressure.
please help me please...................
4 answers
asked by
abby
4,064 views
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