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Physics
Page 55
Questions (147,199)
"An airplane is climbing at an angle of 15 degrees to the horizontal with the sun directly overhead. The shadow of the airplane
4 answers
asked by
Stuck
3,739 views
positively charged particle is fixed in place, unable to move. Another positively charged particle is brought near and released.
4 answers
asked by
Anonymous
1,273 views
If α = 40°, β = 60°, and M = 4.0 kg, determine the tension in string 1 & 2.
-------/ / 1 /2 / . . . Blockmass Alpha is on the
4 answers
asked by
joy
4,514 views
In the figure below,
m1 = 10.9 kg and m2 = 3.7 kg. The coefficient of static friction between m1 and the horizontal surface is
4 answers
asked by
Meagan
5,075 views
An electron is accelerated through a uniform electric field
of magnitude 2.5 3 102 N/C with an initial speed of 1.2 3 106 m/s
4 answers
asked by
pa
1,160 views
If a scuba diver descends too quickly into the sea, the internal pressure on each eardrum remains at atmospheric pressure while
4 answers
asked by
kate
3,580 views
If 309 J of heat are removed from 10.0 g of ice (specific heat = 2.06 J/g
ºC) at -5.5 ºC, what is the final temperature of the
5 answers
asked by
S
1,497 views
A 75 g arrow is fired horizontally. the bow string exerts an average force of 65 N on the arrow over a distance of 0.90 m. With
4 answers
asked by
Anonymous
7,403 views
An object located 18 cm from a convex mirror prodeucses a virtual image 9 cm from the mirror. What is the magnification of the
5 answers
asked by
Shirley
3,523 views
a 2.0kg object is pulled horizontally by a force of 6.3N along the floor where the coefficient of kinetic friction is o.24. what
4 answers
asked by
liz
2,327 views
A golf ball and a bowling ball both move at the same speed and collide head on do you think will move backward when they hit?
4 answers
asked by
l
1,032 views
An object weighs 0.25N in air and
0.01N when immersed in water. Calculate (a) its relative density (b) its apparent weight in a
5 answers
asked by
somay
1,918 views
Find The Potential Energy Of A Boy Mass 10kg Standing On A Building Floor Of 10 Metres Above Ground Level. 10*10*10 =1000
6 answers
asked by
Davido
2,991 views
A ball is fastened to one end of a 30cm string, and the other end is held fixed to a support. the ball whirls in a horizontal
4 answers
asked by
Liz
4,286 views
(a) How many excess electrons must be distributed uniformly within the volume of an isolated plastic sphere 30.0 cm in diameter
4 answers
asked by
J
2,716 views
A 10-kilogram body is constrained to move along the x-axis. The potential energy U of the body in joules is given as a function
7 answers
asked by
Hannah
3,798 views
a car enters a 300m radius flat curve on a rainy day when the coefficient of static friction is between its tires and the road
5 answers
asked by
Anonymous
8,374 views
A boat is pulled through a canal by horses walking parallel to the canal and exerting a force of 1000 N on a tow rope 40 meters
4 answers
asked by
Dylan
1,964 views
A force of 80N acts on a body initially at rest and moves 72m in 6s. If the force is removed after 6s calculate how far the body
5 answers
asked by
jay
1,430 views
the speed of an object at the end of 4 successive seconds is 20,25,30 and 35 meters per second,respectively.the acceleration of
6 answers
asked by
komal yaseen
2,255 views
A ball of mass 0.15kg is dropped from rest at a height of 1.25m. it rebounds from the floor to reach a height of 0.960n. what
7 answers
asked by
natali
6,332 views
An extreme skier, starting from rest, coasts down a mountain slope that makes an angle of 25.0o with
the horizontal. The
7 answers
asked by
Eisya
8,198 views
Dear Dr.,
What formula is this? En = -Z^2RH/n^2 I saw you use it in one of your explanations. I know its been a few yrs since u
4 answers
asked by
Johan
861 views
Martha drops a 1 kg rock off the top of Black Oak Canyon which is 100m deep. What is the KE of the rock the instant
before it
5 answers
asked by
POTENTIAL & KINETIC ENERGY PRACTICE
2,489 views
A package is dropped from a helicopter moving upward at 15 m/s. If it takes 16.0 s before the package strikes the ground, how
5 answers
asked by
Britney
5,808 views
a simple pendulum has a period of 4.2sec. when the pendulum is shortened by 1 m the period is 3.7s. what is the acceleration of
7 answers
asked by
la roux
4,337 views
how much heat is required to warm 10 grams of ice from -10 celsius to 0 celsius? (specific heat of ice= 0.5 cal/g.C?)
5 answers
asked by
pub
2,866 views
How would the dx2−y2 orbital in the n=5 shell compare to the dx2−y2 orbital in the n=3 subshell?
True or False 1.The contour
9 answers
asked by
Kristine
21,867 views
a 45N lithograph is supported by two wires. One wire makes a 25 angle with the vertical and the other makes a 15 angle with the
4 answers
asked by
Ashley
3,727 views
A 4.00 µF capacitor is connected to a 18.0 V battery. How much energy is stored in the capacitor?
This should be a relatively
4 answers
asked by
Physics
5,387 views
A 15.0 kg stone slides down a snow-covered hill (the figure (Figure 1)), leaving point A with a speed of 10.0 m/s . There is no
4 answers
asked by
Markos
3,446 views
A race car starts from rest in the pit area and accelerates at a uniform rate to a speed of 35 m/s in 11s, moving on a circular
4 answers
asked by
Martin
5,889 views
A horizontal force of 100 N pushes a 12kg block up a frictionless incline that makes an angle 25degrees with the horizontal.
5 answers
asked by
Anonymous
2,174 views
15 joules of work are done by forces other than gravity in taking an object from a position 3 m above the ground to a position 8
4 answers
asked by
roxy
4,040 views
a 215-N box is placed on an inclined plane that makes a 35.0 degree angle with the horizontel. Find the component of the weight
5 answers
asked by
Kindell
3,570 views
A Petrol Engine Raises 200litres Of Water In A Well From A Depth Of 7m In 6 Sec.What Is The Power Of The Engine?
6 answers
asked by
Abe
2,318 views
a 0.300kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.80 m/s when it makes a head on
5 answers
asked by
chyenne
7,502 views
A 9.00 kg mass is connected by a light cord to a 1.00 kg mass on a smooth surface as shown in the figure. The pulley rotates
7 answers
asked by
Kayla
3,225 views
A flat mirror that is 0.85m tall is attached to a wall so that its upper edge is 1.7m above the floor. Use the law of reflection
4 answers
asked by
Ashley
2,920 views
A 0.054-kg pet lab mouse sits on a 0.35-kg air-track cart, as shown in (Figure 1) . The cart is at rest, as is a second cart
4 answers
asked by
anonymous
10,057 views
Two ice skaters stand at rest in the center of an ice rink. When they push off against one another the 61-kg skater acquires a
5 answers
asked by
Amanda
4,714 views
A mass m = 9.0 kg is attached to the lower end of a massless string of length L = 83.0 cm. The upper end of the string is held
4 answers
asked by
sam
1,068 views
• If you use a cart with half the mass, you reach _______final speed.
• If you use half the force, you reach ______ final
3 answers
asked by
Ted
1,574 views
A 37 ohm lamp and a 59 ohm lamp are connected in series and placed across a potential of 43 V.
What is the equivalent resistance
5 answers
asked by
Leslie
1,892 views
20 kg , 30 cm diameter disk is spinning at 300 rpm. How much friction force must be applied to rim to bring the disk to a halt
6 answers
asked by
Justin
7,366 views
You are trying to overhear a juicy conversation, but from your distance of 15.0m, it sounds like only an average whisper of 25.0
4 answers
asked by
Veronica
3,695 views
Two vectors with magnitudes of 6 meters and 8 meters cannot have a resultant of:
48 meters 14 meters 10 meters 2 meters Please
4 answers
asked by
Hannah
2,084 views
Sorry to double pos, I just really need help whit this.
You push an air-hockey puck along a surface with negligible friction
6 answers
asked by
Katja
1,170 views
The flow rate of a liquid through a 2.0cm radius pipe is 0.0080 m^3/s. the average fluid in the pipe is?
i know that Av=volume
6 answers
asked by
BrOwN GuRL
5,052 views
The density of a certain material is such that it weighs 4 kilograms per cubic foot of volume. Express this density in ounces
5 answers
asked by
laine
2,725 views
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