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Physics
Page 47
Questions (146,437)
Tom weighs 60 kg and is 2m from the center of a seesaw. Jerry, who weighs 40 kg, sits on the seesaw across from Tom. In order
to
5 answers
asked by
bozo
744 views
Find the speed of a point on the rim of a 24cm diameter fly wheel which is turning at 2800 revolutions per minute. Give your
10 answers
asked by
Emily
3,978 views
Gravity and Air Resistance Quick Check
connexus 10th grade physical science all of these are correct as of 2/4/23 :) 1. What
3 answers
asked by
mmyoui
774 views
In which case would the kinetic energy of particles be increasing?
7 answers
asked by
A lost child
1,462 views
A ball is thrown vertically upwards at 3 m s-1 from 1m above ground level (I) write down the equation for the height of the ball
4 answers
asked by
Ed
2,837 views
Five lines in the H atom spectrum have the following wavelengths in Ǻ: a). 1212.7, b). 4340.5, c).
4861.3 d). 6562.8 and e).
9 answers
asked by
Samantha
4,047 views
A machine has a velocity ratio 5 and is 80% efficient. What effort would be needed to lift a load of 2000N with the aid of this
11 answers
asked by
Anonymous
3,352 views
The height of an object moving up and down is described by y=72+40cos18t (in degree mode). To at least three decimal places,
4 answers
asked by
maath
1,847 views
What does temperature measure?(1 point)
Responses kinetic energy of objects or substances average kinetic energy of the particles
3 answers
asked by
gr
472 views
If a ball is thrown vertically upward from the roof of 48 foot building with a velocity of 96 ft/sec, its height after t seconds
4 answers
asked by
Jaken
1,622 views
A cyclist is coasting up a hill. At t=0, the cyclist has a velocity of 14.27 m/s. If the acceleration of
the cyclist is constant
3 answers
asked by
Alice
1,295 views
The formula vw=f⋅λ
describes the relationship between the speed of a wave (vw ), and its frequency (f ) and wavelength (λ ).
3 answers
asked by
I 🥯 like 🍣!
1,104 views
The average weight of a empty soda can isv18.2 grams. 12 ounces of soda weighs 373.96 grams. How much does a soda can full of
5 answers
asked by
Sun
1,705 views
Which would best model the motion of P waves?(1 point) plss help
A.attaching one end of rope to a chair and moving the other end
7 answers
asked by
y
397 views
Which example demonstrates kinetic energy?
A: a wave crashing on the shore B: stretched out rubber band C: car parked in the
9 answers
asked by
Bonnilu
1,938 views
A rocket tracking station has two telescopes A and B placed 1.9 miles apart. The telescopes lock onto a rocket and transmit
4 answers
asked by
Anonymous
3,760 views
a student drop a rubber ball from a height of 8 feet . Each time the ball hits the ground, it bounces to 75% of its previous
4 answers
asked by
long nguyen
2,228 views
A golfer on a level fairway hits a ball at an angle of 42* to the horizontal that travels 100 yd before striking the ground. He
5 answers
asked by
Jennifer PR
3,836 views
A person gets a running start toward a wall from 5 meters away. The person pushes the wall with a force of 500 newtons, but the
3 answers
asked by
who dat
319 views
How much net force is needed to make a 60 kg object accelerate at a rate of 2.0 m/s^2?
A. 62N B. 62 kg C. 120 N D. 120 kg Is the
7 answers
asked by
Callie
2,416 views
Pulleys and Inclined Planes Quick Check
1 of 41 of 4 Items Question Use the picture to answer the question. An illustration shows
4 answers
asked by
who dat
754 views
Help Please??
If an ant walks for 10 minutes, how far will it travel? _______ meters *My answer is 180* If an ant traveled 22.5
7 answers
asked by
lib
2,041 views
Arthur (mass 78 kg) and Violet (mass 31 kg) are trying to play on a seesaw. If Violet sits 3.6 m from the fulcrum, at what
6 answers
asked by
Alexis
1,937 views
Newton's First Law of Motion states that an object in motion tends to stay in motion unless it
A starts to decelerate. B runs out
1 answer
asked by
johannaEvans
110 views
What is the potential difference if a resistance of 25 ohms produce a current of 250 amperes?
6 answers
asked by
Javier
3,341 views
At most, how many 4d electrons can an atom have? Of these what is the maximum number that
can have ms= -1/2? A 5f electron has
4 answers
asked by
Kim
3,160 views
a rock is thrown straight up in the air from an initial height of ho, in metres, with the initial velocity vo, in metres per
4 answers
asked by
Kp
1,243 views
An occupant of a car has a chance of surviving a crash if the deceleration during the crash is not more than 30 g. Calculate the
6 answers
asked by
Janise
4,012 views
The half- life of a positron is very short. it reacts with an electron, and the masses of both are converted to two gamma-ray
7 answers
asked by
Anonymous
6,763 views
What is the Law of conservation of matter?
7 answers
asked by
pat
2,364 views
Jeriah places two metal cubes in contact with each other. Energy and heat flow from Cube A to Cube B. What conclusion can be
3 answers
asked by
6th g=rade
265 views
What is the best description of thermal energy
thermal energy is the energy stored in the chemical bonds of an object or
4 answers
asked by
I hate science
393 views
A crane lifts a 100-kg concrete block to a vertical height of 25 m. Determine the work done by the crane.
5 answers
asked by
rayyan
2,434 views
(1) A solid weight 0.04 Newton in air and 0.024 newton when fully immersed in liquid of density 300 kilogram per metre cube.What
4 answers
asked by
Daniel
1,164 views
a body of mass 5kg is thrown to a height of 100m.what is its potential energy at the maximum height.?
4 answers
asked by
steve
1,732 views
You pull a door open. If the force the door exerts on you is equal to the force you exert on the door, why don't you move?
7 answers
asked by
Jennifer
4,525 views
Have you ever been on an airplane and heard the pilot say that the plane would be a little late because it would be flying into
4 answers
asked by
Megan
2,367 views
A relative density bottle has a mass of 40g when empty, 90g when filled with water and 80g when filled with oil. Calculate the
10 answers
asked by
isaac
2,230 views
In the production process of a glass sphere, hot glass is blown such that the radius,
r cm, increases over time (t seconds) in
4 answers
asked by
david
344 views
The bottom wave has a greater ____
4 answers
asked anonymously
587 views
1. Which of the following statements about mechanical waves is true?
Mechanical waves require a medium to travel through.
4 answers
asked by
Tristan Seymour
2,438 views
A 0.005kg bullet travelling horizontally with a speed of 1000m/s enters an 18kg door, embedding itself 10cm from the side
5 answers
asked by
Anonymous
7,064 views
A ball is thrown from the edge of a cliff with an initial velocity of 60·m/s upward. Answer the following questions using +
3 answers
asked by
jen
3,177 views
Car A, with mass of 1735kg, was traveling north at 45.5km/h and car B, with a mass of 2540kg, was traveling west at 37.7km/h
4 answers
asked by
Shaila
1,374 views
Suppose you were stranded on a desert island with only a convex lens and a mirror. Describe how you could use each of these
3 answers
asked by
Desert island 🏝
593 views
A buoy oscillates in simple harmonic motion as waves go by. The buoy moves a total of 3.5 feet from its low point to its high
5 answers
asked by
Emily
6,983 views
Describe the action and reaction force pairs involved when an object falls toward Earth. Ignore the effects of the air
4 answers
asked by
Anonymous
3,401 views
Which statement explains why astronauts appear to bounce when they are walking on the moon?(1 point)
Responses The force of
3 answers
asked by
HelpWanted
397 views
Why does air in a room rise when it gains thermal energy from a heater? (1 point)
Responses Its molecules move around more
4 answers
asked by
kali
254 views
The girl in the picture is at the highest point in swinging and starts to come down. Which statement best describes the changes
4 answers
asked by
Anonymous
881 views
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