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Physics
Page 72
Questions (147,011)
Why do two people pushing on a wall from opposite sides, result in the wall not moving?
2 answers
asked by
Steve
2,623 views
A builder pushes
a wheelbarrow loaded with sand ,from rest at point A,up a ramp of unknown length ,which is inclined at unknown
1 answer
asked by
lucky
1,004 views
A cart of mass M1 = 5.00 kg and initial speed = 3.00 m/s collides head on with a second cart of mass M2 = 3.00 kg at rest.
1 answer
asked by
Morgan
468 views
A tractor pulls a tree trunk across horizontal piece of ground. If the force in the chain is 3000N and the chain forms an angle
1 answer
asked by
nthabeleng
372 views
Imagine a circle with a diameter of 2km.if this represents an atom ,which answer would best represent the nucleus?choose the
2 answers
asked by
qwert
715 views
Which phrase best describes nuclear fusion?(1 point)Responsesthe process by which small nuclei combine into a larger nucleusthe
3 answers
asked anonymously
58 views
A JET FLIES WITH THE WIND AT 1100km/hr and 750 km/hr against the same wind.
Find the rate of the wind and speed of the plane
2 answers
asked by
susana
533 views
A person is lifting a heavy box using a lever. What is the purpose of the lever in this situation?(1 point)
Responses to reduce
3 answers
asked by
Answer
111 views
Nobel and Maaham are wearing inline skates. Nobel has a mass of 62kg and pushes Maaham, whose
mass is 54kg. Maaham accelerates at
3 answers
asked anonymously
49 views
1. Carlos jogs in a straight line at a constant speed of 1.5 m/s. He passes by Victoria, who, 10 seconds after Carlos had passed
2 answers
asked by
Raf
494 views
What is kinetic energy?
1. The energy of radiation 2. Thermal energy 3. The energy of motion 4. Stored energy
3 answers
asked anonymously
63 views
A body of mass 4kg moving with a velocity of 10meter per second collide with a stationary body of mass 6kg. If the two body move
3 answers
asked anonymously
57 views
Two forces act on an object. One force has a magnitude of 30N directed west, and the other force has a magnitude of 12 N
3 answers
asked by
. . .
80 views
A point source of light illuminates an aperture 4.00m away. A 18.0 cm -wide bright patch of light appears on a screen 2.00m
2 answers
asked by
Jessica
1,199 views
A uniform meter rule of weight 1.0N, is pivoted at the 0.40m mark, A2.0N weight is hung from the 0.15m where must a 2.0N weight
3 answers
asked by
Augusta
83 views
The water in your bathtub is getting cold. You currently have 36 liters at 31°C. What is the new temperature after you add 10
1 answer
asked by
Ryan
405 views
A student observes interactions between two sets of electrically charged objects. In each set, the objects carry either a charge
3 answers
asked anonymously
136 views
When you trip, your foot stops, but your body continues to move forward. Which statement best explains why this happens?
Newton's
3 answers
asked anonymously
281 views
A roller-coaster is at the top of a 62-meter hill. The car and its passengers have a total mass of 1,088 kilograms. By the time
3 answers
asked by
queen
386 views
Which statements describe ways that nuclear fission is different than nuclear fusion? Select the two correct answers.(1 point)
Re
3 answers
asked by
billy bob joe
166 views
A sealed cylinder of gas contains nitrogen gas at 1.00 103 kPa pressure and a temperature of 14°C. The cylinder is left in the
3 answers
asked by
chandler
742 views
In which case would the kinetic energy of particles be increasing?
1. Metal is cooled at 1,300°C. 2. Metal is at room
3 answers
asked by
ur mama
248 views
I think I'm doing this wrong
In an internal combustion engine, air at atmospheric pressure and a temperature of about 20 degrees
2 answers
asked by
AP Physics B (chemistry bit)
1,277 views
I forgot to add this question into my other Physical Science Posts..sorry
What is the difference between mass and weight? Mass is
4 answers
asked by
mysterychicken
882 views
A shoe and a shirt are released from the same height. They take different amounts of time to fall to the ground. How can this be
3 answers
asked anonymously
135 views
Use the equation to answer the question.
146C→147N+0−1e Which type of radioactive decay does the equation model? (1 point)
3 answers
asked by
Blue Berry
148 views
A group of students conduct an experiment to study Newton’s second law of motion. They applied a force to a toy car and
21 answers
asked anonymously
111 views
Matt is walking 1.25 miles to the east.Jaime is walking 1.25 miles to the west.Which statement describes the movement of matt
3 answers
asked anonymously
55 views
If the coefficient of kinetic friction is .25, how much horizontal force is needed to pull each of the following masses along a
3 answers
asked by
hailey
419 views
A shoe in the shirt are released from the same height. They take different amounts of time to fall to the ground. How can this
3 answers
asked anonymously
60 views
Groups of skydivers need to navigate through The air during a jump to get into a formation. How can sky divers who are below the
3 answers
asked anonymously
43 views
Nuclear reactions can be written out in equation form with information about the nuclei that take place in the fusion reaction
3 answers
asked by
Anonymous
70 views
An athlete is practicing shotput using a 16-pound shot, and he throws it 40 feet. He then uses a 12-pound shot and throws it 50
3 answers
asked anonymously
173 views
A charge of +1q is fixed to one corner of a square, while a charge of -3q is fixed to the diagonally opposite corner. Expressed
2 answers
asked by
Mary
981 views
If the current is used, find the time taken for 5.5g of gold to be deposited ( Au =197, 1 faraday = 96500c )
1 answer
asked anonymously
71 views
Consider Sammy's ride down the water slide in question #1. Imagine that Sammy is replaced with by his science teacher, Mr.
1 answer
asked anonymously
62 views
The current temperature in degrees Celsius, where x equals the number of hours after noon, is 2x+10. Interpreting this equation,
1 answer
asked anonymously
249 views
Gravity is a force between any two objects with mass why doesn't a person feel a gravitational force between him or herself and
7 answers
asked anonymously
194 views
In which case would the kinetic energy of particles be increasing? (1 point) Responses Metal is melted at 1,300°C. Metal is
1 answer
asked by
Kaesawn Johnson
116 views
A frictionless pendulum has a length of 1.2 m and a mass of 0.8 kg. If the pendulum is raised to an angle of 50 degrees before
1 answer
asked anonymously
106 views
A student adds different amounts of ice to four samples of water and records the change in temperature after 30 minutes. What is
1 answer
asked by
Uncle moe last name lester
65 views
What is the coefficient of static friction between a load of mass 0.75kg and a horizontal surface if the limiting frictional
1 answer
asked by
Jonathan Onyekachi
58 views
Which statement explains how the charges on objects determines the electric force between them?(1 point)ResponsesObjects with
1 answer
asked anonymously
108 views
Question
Which conclusion can be made from Gay-Lussac’s law?(1 point) Responses At a constant temperature, the pressure of a
1 answer
asked anonymously
93 views
A stone with mass 0.8kg is attached to one end of a string 0.9m long . The string will break if its tension exceeds 600N. The
3 answers
asked by
Swagat khanal
3,370 views
Three identical balls, with masses M, 2M, and 3M are fastened to a massless rod of length L as shown. The rotational inertia
4 answers
asked by
tatiana
3,071 views
Find the length of a pendulum that has a frequency of 0.80 Hz?
4 answers
asked by
jane
2,253 views
The siren on an ambulance is emitting a sound whose frequency is 2421 Hz. The speed of sound is 343 m/s. (a) If the ambulance is
4 answers
asked by
carter montgomery
2,031 views
A particle has a kinetic energy equal to its rest energy.
(a) What is the speed of this particle? (b) If the kinetic energy of
3 answers
asked by
martini
2,019 views
A metre rule is found to balance horizontally at the 48cm mark. When a body of mass 60g is suspended at the 6cm mark the balance
4 answers
asked by
David Cameron
2,002 views
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