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Physics
Page 7
Questions (151,571)
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
7,315 views
A person moves away from a stationary sound source. Which phrase describes the sound perceived by the person?(1 point)
Responses
2 answers
asked by
no name
169 views
The gravitational force of a lunar rover is 1,607.2 Newtons on Earth. What will the rover’s gravitational force be on the
3 answers
asked by
meli
342 views
the crest of wave A has an amplitude of 5 cm. the trough of wave B has an amplitude of 2 cm. if the crest of wave A combines
18 answers
asked by
Victoria
5,685 views
Use the table to answer the question
object A +1 B +2 C -1 D -2 Assuming other factors are held constant, which two objects will
5 answers
asked by
….
3,227 views
Which combination of charge and distance would lead to the strongest repulsive force ? a + 1 charge and a -1 charge at a
7 answers
asked by
Joe
140 views
Which statement explains how heat causes materials to expand?
a. Higher temperatures increase the kinetic energy of the
5 answers
asked by
purple koala
238 views
What is the wavelength of a 20 Hz periodic wave moving at 40 m/s?
Use the equation below! a 80 m b 0.5 m c 800 m d 2 m
3 answers
asked by
kali
158 views
when a ball falls vertically off a table it rebounds 75% of its height after each bounce. if it travels a total of 490 cm, how
4 answers
asked by
franc
4,683 views
yall know the anwsers to the LESSON 13
Non-Contact Forces Unit Test?? heres the first question Which statement explains how the
67 answers
asked by
HELP WWITH A TEST
4,747 views
Which of the following is an example of kinetic energy transfer?
18 answers
asked by
please help
8,416 views
Which is a good description of kinetic energy?
conserved energy stored energy energy from the sun energy of motion A person
44 answers
asked by
H
12,933 views
A man mass 75 kg and a boy mass 25 kg dives off the end of a boat of mass 300 kg so that their relative horizontal velocity with
5 answers
asked by
sjeba
3,188 views
Which option is the force with the greatest magnitude?
A: the force needed to lift a textbook B: the force needed to lift a
11 answers
asked by
:)
1,352 views
In one or two sentences, make and justify a claim about the frequency of a wave if the wavelength increases and the velocity
12 answers
asked by
simpforlevi
4,340 views
An airplane leaves Atlanta at 2 PM and flies north at 250 miles per hour. A second airplane leaves Atlanta 30 minutes later and
5 answers
asked by
Zara
5,021 views
3. An elastic string hangs from a nail N. When as mass of m grams is attached to its lower end, the elastic is stretched so that
5 answers
asked by
puk
976 views
An oil tank is 3m long, 3 m wide and 2 m high, when it is full of coconut oil specific gravity of 0.90, find the downward force
5 answers
asked by
mmmm
2,281 views
Two forces act on an object. The first force has a magnitude of 360 newtons and acts at an angle of 30° as measured from the
4 answers
asked by
T
1,984 views
A science class is planning an investigation about gravity and objects on Earth. In three to four sentences, explain the steps
9 answers
asked by
Willie Lawson
2,346 views
there are two wires a and b. if the resistance of B is R and the diameter of A is twice of B, the length and the nature of the
4 answers
asked by
doffy
1,446 views
A boat heads 15 degrees west of north with a water speed of 3 m/s. Determine its velocity relative to the ground when there is a
6 answers
asked by
Luke
3,081 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
7,675 views
What displacement must be added to a 50cm displacement in the +x-direction to give a resultant displacement of 85cm at 25
7 answers
asked by
Harry
8,964 views
62kg person in an elevator is moving up at a constant speed of 4.0m/s for 5.0s
a) calculate the work done by the normal force on
4 answers
asked by
lomonoyan
6,148 views
the negative charge distribution over the surface of two isolated spheres is depicted in the diagram. one of the spheres is made
5 answers
asked by
maria
4,484 views
70-kg man jumps off a raft 2 meter squared moored in a freshwater lake. By how much does the raft rise?
5 answers
asked by
yin
4,882 views
A stone is dropped from the deck of the bridge. The sound of the splash reaches the deck 3 seconds later. If sound travels at
5 answers
asked by
Anonymous
5,493 views
An orange rolls across a table with a speed of 0.5 m/s and falls off the edge. If it lands 3 m from the edge of the table, from
6 answers
asked by
Jin
8,377 views
I was wondering if my answers are correct.
1. A 50kg person is taking a ride on an elevator travelling up at a steady speed of
7 answers
asked by
Liz
5,092 views
Two spheres are attached to two identical springs and
separated by 8.0 cm, as in Figure 14. When a charge of 2.5 106 C is placed
5 answers
asked by
Harsh
2,179 views
the total capacitor of a capacitance 3uf and 6uf are connected in series. calculate the equivalent capacitance
7 answers
asked by
Emanuel
5,225 views
An iceberg has specific weight of 9000 N/m^3 in n ocean, which has a specific weight of 1000 N/m^3. Above the water surface, it
5 answers
asked by
Alex
3,143 views
a d'arsonval meter movement deflects to 0.8mA. what is the peak value of the alternating current if the instrument uses
4 answers
asked by
Anonymous
1,735 views
A brick of salt has a volume of 50cm3 and a mass of 100 grams. Calculate the
density of the brick.
4 answers
asked by
Nigel
1,964 views
A negative charge of 3 x 10-4 C experiences a force of 0.12N when in an electric field. What is the magnitude of the field
2 answers
asked by
ok
217 views
Use the image to answer the question.
An illustration shows three coiled wire springs stretched to varying lengths. The first
7 answers
asked by
:p
98 views
Use the table of electric force between objects in two different interactions to answer the question. Interaction Charge on
1 answer
asked anonymously
50 views
2 cells, each of Emf 2v and internal resistance 0.5ohms are connected in series .they are made to supply current to a
1 answer
asked by
Comrade
176 views
a 25ohm resistor connected in series with a coil of 500ohm resistance and 150mH inductance. What is the power factor of the
5 answers
asked by
student
6,318 views
How much heat is required to raise the temperature of 250.0 g of mercury 52ºC? The specific heat of mercury is 0.14 J/(gºC).
7 answers
asked by
Meg Hat
11,596 views
Determine the enthalpy of 5.0 kg of water at 850 kpa
5 answers
asked by
Nafa
848 views
Typically, a tennis ball hit during a serve travels away at about 51 m/s. If the ball is at rest mid-air when struck, and it has
6 answers
asked by
Jason
5,131 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
4,210 views
Arlene is to walk across a “high wire” strung horizontally between two buildings 10.0 m apart. The sag in the rope when she
6 answers
asked by
mei
13,629 views
An ideal gas has a volume of 3.0 L. If the number of moles of gas and the temperature are doubled, while the pressure remains
5 answers
asked by
jenny
4,868 views
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
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