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Physics
Page 8
Questions (146,878)
The earth has a diameter of 12 742 km. Calculate the following: 2.2.1 The angular velocity of the tree that is on the equator
1 answer
asked by
ADIVHAHO
40 views
A cart rolls down a 2.5 m frictionless ramp in 1.25 s after starting from rest at the top. What is the angle of the ramp?
1 answer
asked by
Ne
159 views
A typical volume of a modern hot air balloon is 2500 cubic metres, and a typical maximum temperature of the hot air is 120
5 answers
asked by
Luis
7,297 views
A net force of 200n gives a body of mass m1 an acceleration of 80m/s2 and a body of mass m2, an acceleration of 240m/s2. The
6 answers
asked by
SANJU
4,796 views
A hole 3cm in diameter is to be punched out of a steel plate 8cm thick. The shear stress of the material is 670GPa. What load is
5 answers
asked by
Danny
5,184 views
what is a newton?
-a force that changes the motion of an object -a force that pulls objects toward the ground -the unit in which
7 answers
asked by
YourEx
3,479 views
A uniform meter rule is balance at 30cm mark when of 50grams is hanging from its zero cm mark.calculate the weight of the rule?
10 answers
asked by
wangai
4,393 views
A radioactive element decays exponentially according to the function Q(t) = Q0ekt
.If 100 mg of the element decays to 25 mg in 12
5 answers
asked by
Rania
3,437 views
A carbon atom's nucleus and its electrons become separated by 20nm. How much work does it take to separate them in Joules? In
5 answers
asked by
Alice
1,421 views
1.A ball bounces on the ground. How do the ball and the ground act on each other?
answerer= the ball and the ground exert forces
13 answers
asked by
answers bc why not
3,151 views
1. The current flowing through an electric circuit is the derivative of the charge as a function of time. If the charge q is
7 answers
asked by
girly girl
2,592 views
Blocks A and B of weight 200N and 100N respectively, rest on a 30 inclined plane and are attached to the post which is held
4 answers
asked by
Kishore
3,233 views
If a student measures the length of the pendulum to be 0.510m in a simple pendulum experiment and determines that the period of
3 answers
asked by
Precious
381 views
Which is the main fuel for nuclear fusion in all stars?(1 point)
hydrogen** carbon helium nitrogen
7 answers
asked by
an axolotl <3
2,656 views
Which analogy best describes amperage?(1 point)
Responses diameter of a pipe through which water moves pressure of water moving
4 answers
asked by
analogy
199 views
a string can hold up 12 kg without breaking. You tie the string to a 30kg object sitting on ice and use it to pull the object
5 answers
asked by
John
3,240 views
A student drops a basketball into a pool from a height of 5 meters while her friend records the approximate splash height. They
39 answers
asked by
i need to know
21,812 views
a ball is dropped from a height of 3m and bounces on the ground . At the top of each bounce, the ball eaches 60% of its previous
6 answers
asked by
Melissa
6,829 views
When would a transformation of chemical energy to electrical energy occur?
5 answers
asked by
stackz
2,516 views
Study the scenario.
A beam of light hits a sheet of metal. If it has enough energy, electrons break free from the metal sheet.
7 answers
asked by
:)
3,024 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
:)
1,286 views
1 litre of water has a mass of 1 kg. Find the mass of a bottle containing 1.5l of water if the bottle has a mass of 150g.
7 answers
asked by
Rajini
2,437 views
Which describes nuclear fission?(1 point)
<)>starts when two atoms slam together to form one, heavier atom <)>starts when a
15 answers
asked by
Anonymous
4,205 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
4,943 views
During halftime of a footballgame, a sling shot launches T-shirts at the crowd. A T-shirt is launched from a height of
5 answers
asked by
S
7,396 views
Particle P moves in a straight line such that, t seconds after passing through a fixed point O its velocity V m/s given by the
4 answers
asked by
me
1,356 views
An airplane takes off at 10:00 AM and flies a straight path at 350 km/h until 1:00 PM. Its velocity then changes to 400km/h in
4 answers
asked by
Kuhaku
932 views
Question: Suppose you have sunlight shining on two clear containers of water on a table. Light waves refract through one of the
7 answers
asked by
Anonymous
2,938 views
Why might a plastic rod that contains a large number of electrons not have a static charge?
6 answers
asked by
rebecca
4,102 views
A 650 N boy and a 490 N girl sit on a 150 N porch swing that is 1.70 m long. If the swing is supported by a chain at each end,
7 answers
asked by
Jennifer
4,395 views
any sound from one focus of an ellipse reflects off the ellipse directly back to the other focus. This property explains
4 answers
asked by
laura
2,504 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
8,910 views
a small rock with mass 0.20 kg is released from rest at point A which is at the top edge of a large, hemispherical bowl with
5 answers
asked by
Frankie
19,102 views
A FIREWORKS ROCKET IS MOVING WITH A SPEED OF 45.0 M/S. THE ROCKET SUDDENLY BREAKS INTO TWO PIECES OF EQUAL MASS, WHICH FLY OFF
5 answers
asked by
LIZ
10,786 views
Students perform an experiment using a circuit that contains the two parallel plate capacitors C1=10μF and C2=40μF. Come up
5 answers
asked by
Helen
2,529 views
HELP HELP
When a chameleon captures an insect, its tongue can extend 16 cm in 0.10 s. (a) Find the magnitude of the tongue’s
5 answers
asked by
beginner
8,741 views
when a 2.50 kg object is hung vertically on a certain light spring described by hookes law the spring stretches 2.76 cm. A) what
5 answers
asked by
joe
18,142 views
how large a force is required to accelerate a 1300 kg car from rest to a speed of 20 m/s in a horizontal distance of 80 m ? I'm
6 answers
asked by
courtland
7,766 views
A light ray incident upon a mirror makes an angle of 36 with the mirror , what is the angle between incident ray and the
4 answers
asked by
=
2,738 views
a force F is applied in horizontal to a 10kg block. the block moves at a constant speed 2m/s across a horizontal surface. the
6 answers
asked by
kristen
4,605 views
A simple wheel and axle is used to lift a bucket of water from a well the radii of the wheel and axle are 20cm and 4cm
5 answers
asked by
Rodas
3,143 views
A small pebble is heated and placed in a foam cup calorimeter containing 25.0 mL of water at 25.0 degrees Celsius.The water
5 answers
asked by
Anonymous
5,238 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
8,312 views
You dip your finger into a pan of water twice each second, producing waves with crests that are separated by 0.15 m. Determine
5 answers
asked by
Dominique
9,382 views
State the physical quantities one has to measure in order to determine the young's modulus of a wire?
7 answers
asked by
Ashwariyya
3,094 views
What is the (absolute) pressure of a bulb? (to 3 s.f and in kPa)
(Patm = 101 kPa, ρwater = 1000 kg m−3) Height = 16.0cm what
4 answers
asked by
nina
1,191 views
A 0.20-kg mass is hung from a vertical spring of force constant 55 N/m. When the
spring is released from its unstretched
5 answers
asked by
Syed
4,397 views
A 0.60 kg object with an initial velocity of 3.0 m/s in the positive x direction is acted on by a force in the direction of
5 answers
asked by
Anonymous
1,369 views
An equation for loudness L in decibels is given by L=10logR , where R is the relative intensity of the sound compared to the
4 answers
asked by
Nawidullah
963 views
if the thermal energy of a metal with specific heat capacity of 40joule\kgk is 15j find the thermal energy of another metal with
5 answers
asked by
khadijat sanusi Ahmad
926 views
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