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Physics
Page 46
Questions (147,531)
Different colors absorb and reflect different amounts of sunlight. Which color would make the most sense to use to paint a house
2 answers
asked by
...
80 views
A block of mass 11 kg is at rest on a rough plane inclined at 30° to the horizontal. A force acts on the block in a direction
4 answers
asked by
Autumn
2,695 views
A ship is heading due north at 12km/h in a tide moving 5km/h westward. Determine the magnitude and direction of the resultant
4 answers
asked by
secrated
1,998 views
What would be the temperature of 50 g of 20°C water mixed with 80 g of 40°C water?
4 answers
asked by
Jenna V
1,752 views
Suppose that an accelerating car goes from 0 mph to 58.6 mph in five seconds. Its velocity is given in the following table,
5 answers
asked by
Anonymous
5,384 views
What type of simple machine is crossbar?
7 answers
asked by
Zara
105 views
Since the investigative question has two variables, you need to focus on each one separately. Thinking only about the first part
1 answer
asked by
Useless
199 views
Using Coulomb's Law, if the distance between two charged objects is decreased, what happens to the electric force between them?
a
1 answer
asked by
social studies
238 views
Mercy drops a penny into a pond. The penny drops 1.5 inches every second.
How many inches below the surface will it be after 8
41 answers
asked anonymously
212 views
An object with mass 500g less hang from the spring with force constant 20N/m.How far in cm would the spring stretch?
3 answers
asked anonymously
158 views
Which statement explains how the charges on objects determine the electric force between them?(1 point)
Responses Objects with
38 answers
asked by
Lilly
329 views
The Van de Graaff generator works by creating static electricity using rubber bands that move over a piece of felt charging the
1 answer
asked by
pht
124 views
Waves Unit Test (Connexus)
1. A sound wave needs a medium to travel, while a light wave does not. 2. Sound waves travel at a
2 answers
asked by
Your Helper
276 views
The vertical drop of a roller coaster is the largest difference in height between any high point and the next low point. The
7 answers
asked by
Joe
1,858 views
the thin lens equation in physics is 1/s+1/S=1/f where s is the object distance from the lens,S is the image distance from the
5 answers
asked by
roslin
2,987 views
A torpedo fired from a submerged submarine is propelled through the water with a speed of 20.00 m/s and explodes upon impact
4 answers
asked by
confusedd!HELPP!!!
6,982 views
An object , constrained to move along the x-axis is acted upon by a force F(x)=ax + bx^2 where a=5N/m , b=-2m/s
The object is
6 answers
asked by
Anonymous
3,070 views
Two electrical circuits have the same 15-volt batteries. Circuit A has 2 ohms of resistance, and circuit B has 6 ohms of
6 answers
asked by
Lilly
3,231 views
Use the table of information about four electromagnets to answer the question.
Electromagnet Current Intensity Number of Turns in
10 answers
asked by
Lilly
472 views
a 1200kg car coasts from rest down a driveway that is inclined 20degrees. to the horizontal and is 15m long. how fast is the car
4 answers
asked by
eddy
4,397 views
1. Find the magnitude of the torque produced by a 3.0 N force applied to a door at a perpendicular distance of 0.25 m from the
5 answers
asked by
Anonymous
9,449 views
A 55 kg ice skater is at rest on a flat skating rink. A 198 N horizontal forceis needed to set the skater in motion.However,
7 answers
asked by
Melissa
10,448 views
A ringing alarm clock is put under a glass jar. The air is slowly removed from the space around it. What will happen as the
air
11 answers
asked by
meow
445 views
What is a newton?(1 point)
A. a force that pulls objects toward the ground B. a force that changes the motion of an object C. the
14 answers
asked by
bob
1,725 views
A graph of wavelength vs. 1/frequency should be a straight line. What are it's slope and y-intercept?
I'm not given any graphs or
4 answers
asked by
Eiban
2,788 views
Lukalu is rappelling off a cliff. The parametric equations that describe her horizontal and vertical position as a function of
6 answers
asked by
Apryl
2,581 views
An object is projected directly upward from the ground. After t seconds its distance in feet above the ground is s = 144t -16t2
H
3 answers
asked by
K
110 views
Which statement best describes work?(1 point)
A. Work is done when an object continues in motion without a push. B. Work is done
1 answer
asked by
cookies4life
205 views
Your class is designing electromagnets. Available materials include: various batteries, different sizes of iron nails, and a
2 answers
asked by
Help The ELA Kid📃✏️😔
108 views
What three factors affect electric force? Choose all that apply
a the distance between two charged objects b potential kinetics
3 answers
asked by
A
171 views
Why did the quantum theory of light explain the outcome of the photoelectric effect experiment?
a. The quantum theory of light
1 answer
asked by
hi
95 views
How does an open parachute slow a skydiver’s fall?(1 point)
A. The parachute weakens the force of gravity. B. The parachute
1 answer
asked by
wiggle
187 views
A model shows rays of sunlight moving straight from the sun perpendicular to the surface of the Earth. What are these rays
7 answers
asked by
noodle
785 views
An electric train uses a power source of 25 volts. If the train track has a total of 45 ohms of resistance, what is the current
2 answers
asked by
ok
111 views
How does an increase in amplitude affect sound and light waves?(1 point)
Responses louder sound and brighter light higher-pitched
1 answer
asked by
e
80 views
Which type of wave needs a medium to travel?(1 point)
Responses light waves, because they travel by oscillating molecules sound
1 answer
asked by
e
100 views
Which of the following determines if a material is a conductor or an insulator?
a proton movement b number of electrons c
1 answer
asked by
shoto
166 views
Which of the following would decrease the flow of current through the lights in the circuit shown above?
a Decreasing the battery
3 answers
asked by
shoto
235 views
You can decrease resistance by making the wire in a circuit smaller.
True False
3 answers
asked by
re
100 views
Why are open systems inappropriate for studying the conservation of mass?
Heat can escape from or enter the system. Matter may be
1 answer
asked by
no
165 views
The formula vw=f⋅λ describes the relationship between the speed of a wave (vw), and its frequency (f) and wavelength (λ).
For
3 answers
asked by
wiggle
271 views
A school bus is being pulled along a rough road at a constant speed by a rope attached to a moving tractor. The rope is parallel
1 answer
asked by
Deadrea
107 views
A certain lever system is only 30% efficient. What could make it more efficient? (1 point)
Responses Have more than one person
1 answer
asked by
kriox
263 views
A 45 kg car is pulled at a constant speed across a rough horizontal road by a rope at an angle of 29.5o above horizontal. How
2 answers
asked by
Deadrea
127 views
Which way does the energy flow?
a from the brick and iron to the heater b from the heater to the brick and iron c energy does not
2 answers
asked by
A
91 views
Which term describes the distance from the crest of a wave to the next crest?(1 point)
Responses speed speed frequency frequency
3 answers
asked by
no name
92 views
Electromagnet Current Intensity Number of Turns in the Wire
W medium 10 X low 10 Y medium 50 Z low 50 Which electromagnet will
3 answers
asked by
Help the ELA Kid😔✏️📃
308 views
Amari is researching an electric car. He finds this graph, which shows how much range, measured in kilometers, the car gains
1 answer
asked by
Madeline
163 views
An object of mass 2 kg moving with velocity of 12 m/s, collides head-on with a stationary object whose mass is 6 kg. Given that
3 answers
asked anonymously
153 views
Your pencil and notebook are both sitting motionless on your desk. Which of the following explanations correctly explains which
4 answers
asked by
kali
287 views
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