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Physics
Page 21
Questions (147,215)
an object of mass 5kg in plane on a plane inclined at an angle of 30 degree to the horizontal. calculate the force on the object
3 answers
asked by
praise
743 views
If the average time from one on state to the next one on the first photogate is 0.005 seconds, what is the speed of the cart at
6 answers
asked by
Ahmed
930 views
A science class is planning an investigation about gravity and objects on Earth. In three to four sentences, explain the steps
5 answers
asked by
Wes
492 views
What must the water pressure be to supply water to the third flor of a buiking 35.0 ft up with a pressure of 40.0 lb/in(2) at
4 answers
asked by
Eileen
1,648 views
An airplane flying east at 360 km/h passes over Pearson airport 10 minutes before a second airplane flying south at 480 km/h
4 answers
asked by
Anonymous
670 views
A 15kg box is resting on a hill forming an angle with the horizontal. The coefficient of static friction for the box on the
5 answers
asked by
Mack
1,340 views
A large 2,000-N cement block is pulled up a frictionless 43 degrees incline using a dual-strand pulley that is attached to the
4 answers
asked by
audrey
482 views
A circular swimming pool has a diameter of 14 m, the sides are 4 m high, and the depth of the water is 3.5 m. (The acceleration
4 answers
asked by
Anonymous
4,572 views
The volume of brass increase as a result of heat by 0.6%, by how many degree was the vessel heated
4 answers
asked by
isaav
997 views
a capacitor 8uf is charged to a potential difference of 100v. the energy stored by the capacitor is?
4 answers
asked by
Robotic
1,970 views
Explain why, when a polythene rod which has been rubbed with any cloth is held high above small pieces of paper on a table, the
4 answers
asked by
Jennifer Martins
659 views
If 4.168 kJ of heat is added to a calorimeter containing 75.40 g of water, the temperature of the water and the calorimeter
4 answers
asked by
Anonymous
2,880 views
If the amplitudes of the two waves are 3 units and 1 unit respectively, show by the principle of superposition that the ratio of
4 answers
asked by
Edwin
2,068 views
A plane is flying west at 500 ft/sec at an altitude of 4000 ft. The plane is tracked by a searchlight on the ground. If the
4 answers
asked by
bill
2,952 views
If a load of 1kg stretched a cord by 1.2cm, what is the force constant of the cord ?. ( g=10m/s2) *
4 answers
asked by
Prince
588 views
The figure shows a girl and a boy each exerting a force to move a
crate horizontally a distance of 13 m at a constant speed. The
4 answers
asked by
Anonymous
1,944 views
A body of mass 5kg moving with a velocity of 20m/s due south hits a stationary body of mass 3kg.if they move together after
5 answers
asked by
Praise
589 views
a bus traveling in a straight line with uniform acceleration has an instant speed of 6m/s. 5seconds later, has reached speed of
4 answers
asked by
TOWELA
376 views
The gravitational field intensity at location X in space is (2/5) of its value on the earth's surface. If the weight of an
3 answers
asked by
samba mambo
551 views
1. A stone is tossed upward with a velocity of 8m/s from the edge of a cliff 63 m high. How long will it take the stone to hit
5 answers
asked by
Betty
1,241 views
an arrow is shot from a castle tower. its height above the ground is given by the equation h = -5t^2 + 15t + 20 where h is the
4 answers
asked by
EYB
950 views
Which of the following correctly describes a sphere?(1 point)
4 answers
asked by
abfrmk3
461 views
A bicycle tire is filled with air to a pressure of 610 kPa at a temperature of 19 oC. Riding the bike on asphalt on a hot day
4 answers
asked by
Helga
2,753 views
A person is lifting a heavy box using a lever. What is the purpose of the lever in this situation?
4 answers
asked by
Subzero
1,092 views
When a mass of 50g is hung from 5cm mark of a uniform meter rule. The rule balance on a knife edge placed at the 35cm mark .
4 answers
asked by
Pauline
1,624 views
a model rocket is projected straight upward from the ground level. It is fired with an initial velocity of 192 ft/s. How high is
4 answers
asked by
Rick
1,953 views
An astronaut on the Moon attaches a small brass ball to a 1.00- m length of string and makes a simple pendulum. She times 15
4 answers
asked by
Kristie
4,455 views
What are some pros and cons for energy level diagrams and electron configuration diagrams?
I was very long for elements like
4 answers
asked by
Lena
1,985 views
Two people take identical jet skis across a river, traveling at the same speed relative to the water. Jet ski A heads directly
3 answers
asked by
Johnathan
1,085 views
The mass of the roller coaster below is 80 kg. It starts from rest at a height of 30 m and reaches a speed of 20 m/s at point B.
3 answers
asked by
Heylee Green
976 views
The brakes of a car traveling at 16 m/s can decelerate it until it stops after 10m. Find (a) its negative acceleration, and (b)
4 answers
asked by
Allyn
1,483 views
Calculate the kinetic or potential energy in joules for each of the following situations:
A. A 2.5 kg book is held 2.0 m above
4 answers
asked by
Aurora Simmons
3,389 views
A uniform rod of mass of 120g and a length of 130cm is suspended by a wire from a point 80cm from the rods left end . What mass
4 answers
asked by
Anonymous
250 views
A 5.00-kg box is suspended from the ceiling by a cord that is 50.0 cm long. A 10.0-g bullet was fired horizontally with speed at
3 answers
asked by
Candu
643 views
A mass m is attached to a spring of constant k. The spring oscillates in simple harmonic motion (amplitude A). In terms of A:
a)
4 answers
asked by
Joe
609 views
A truck travels at a speed of 64 km / h heading towards Town A. 3 hours later a jeep travelling at a speed of 96 km / h begins
3 answers
asked by
dppsps
505 views
A density bottle weighs 0.25N when empty, 0.75N when filled with water and 0.65N when filled with alcohol.Calculate:
a.volume of
6 answers
asked by
Hera
1,880 views
Two point charges, q1 and q2, of 4.00 uc each, are placed -6.0 cm and 6.0 cm away from the origin on the x-axis. A charge q3 of
3 answers
asked by
Anonymous
1,036 views
A box sliding down a frictionless plane inclined at an angle 35 degrees with the horizontal. What is the acceleration of the
3 answers
asked by
YESHA
1,080 views
The table below represents an object thrown into the air.
A 2-column table with 7 rows. Column 1 is labeled Seconds, x with
4 answers
asked by
Stacy
222 views
Find the Data given and solve it, If the thermal energy of a metal with specific heat capacity of 40j/kgk is 15j, find the
2 answers
asked by
Mubarak b Hassan
276 views
as observer travelling with a constant velocity of 20m/s passes close to a stationary source of sound and noticed that there is
3 answers
asked by
Evans
1,007 views
a metallic rod was heated to 300¡ãc and left for cooling. after every 2 menute it becomes colder by 15¡ãc. what will be the
4 answers
asked by
shehzad
975 views
A wildlife keeper is trying to catch an escaping rabbit. Who has the greater kinetic energy, the rabbit or the wildlife
3 answers
asked by
Dylan Lott
114 views
a large jar contains 500 identical marbles. Suppose you have an identical empty jar, a set of standard masses and balance
4 answers
asked by
jillybean
1,350 views
If a monkey drops a banana off of a cliff, where are the potential and kinetic energies of the banana equal.(1 point) Responses
h
3 answers
asked by
yellow❁sunny
270 views
A cable 45.4 m long is carrying a uniformly distributed load
along its span. If the cable is strung between two posts at the same
4 answers
asked by
Chris
1,289 views
A measuring cylinder contains 50cm`3 of water.A stone has a mass of 1.75g.The stone is lowered into the cylinder, the level of
4 answers
asked by
emmanuel
1,060 views
A turtle moves 3.5m [E] in 136 s and then moves 1.7m [W] in 88 s.
a) What is the average speed of the turtle? b) What is the
5 answers
asked by
Anonymous
543 views
A ball is thrown upward from the top of a building which is 96ft tall w/ Initial velocity of 80 ft per sec.
Distance s(ft) of
6 answers
asked by
Amy~
1,400 views
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