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Physics
Page 19
Questions (146,396)
A diver is currently located at a depth of 50m in the ocean. (if the density of sea water is 1025𝑘𝑔/𝑚3 and
5 answers
asked by
besmengesha
2,968 views
Convert 33°c and 43°c to Kelvin scale
5 answers
asked by
Seyi
1,353 views
On the way to class, you walk north and then west such that your resultant displacement is 290 m in a direction 25deg west of
4 answers
asked by
Jade
1,278 views
A Hall-effect probe operates with a 120 -mA current. When the probe is placed in a uniform magnetic field of magnitude 0.0840 T,
7 answers
asked by
Rachel
2,774 views
The path of a particle moving in a straight line is given by s=t^3-6t^2+9t+4.
a. Find s and a when v=0. b. Find s and v when a=0.
5 answers
asked by
eyyy
2,665 views
In the Sun, an ionized helium atom makes a transition from n =6 state to the n = 2 state, emitting a photon. Can that photon be
4 answers
asked by
qwer
3,020 views
A stone is projected vertically upwards with a speed of 30ms from the top of a tower of height 50m. Neglecting air resistance
6 answers
asked by
josh
2,784 views
A train passing at point A at a speed of 72 kph accelerates at .75 m/s2 for one minute along a straight path then decelerated at
4 answers
asked by
nonoy
2,964 views
A bullet (m = 0.0250 kg) is fired with a speed of 92.00 m/s and hits a block (M = 2.50 kg) supported by two light strings as
4 answers
asked by
Ron
2,025 views
A water balloon is fired at 34.0 m/s from a water cannon, which is aimed at an angle of 18° above the ground. The center of the
4 answers
asked by
anonymous
3,048 views
A density bottle has a mass of 70g when empty 90g when full of water and 94g when full of liquid x calculate a mass of water
6 answers
asked by
Miriam
2,212 views
3 kg object is fastened to a light spring with the intervening cord passing over a pulley. The pulley is frictionless and it's
5 answers
asked by
Bill
3,024 views
A sine wave is traveling to the right on a cord. The lighter line in the figure represents the shape of the cord at time t = 0;
4 answers
asked by
Amy
2,119 views
In its approach to an airport runway, an airplane of mass 1.24 x 10^5 kg has a velocity of 75.5 m/s [11.1 degrees below the
4 answers
asked by
Jordge
1,468 views
The Mars rover drops a rock off the rim of a 120 meter high cliff on Mars. The free-fall acceleration is -3.7m/s2. What is the
4 answers
asked by
Alexi
652 views
How many hour will it take for a Bus to travel 1000 km. If it travels at an average velocity of 80 km/hr. assume constant
6 answers
asked by
arjeme
1,681 views
Let s(t)=-5t^2+40t be the position equation for a rock thrown upwards. At what time t, in seconds, will the rock change
4 answers
asked by
Kim
1,237 views
a bolwing ball of mass 2.00 kg strikes a stationary pin of mass 5.00 x 10^2 g. the collision lasts for .60s after which the pin
4 answers
asked by
feez
2,339 views
A faulty celcius thermometer read 0.7 degree celcius at the melting point of pure ice and 99.5 at the boiling point of water at
7 answers
asked by
Shredder
3,747 views
The second resonant length of an open air column is 48cm. Determine the first and third resonant lengths
5 answers
asked by
Melissa
1,101 views
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
741 views
two point charges are located on the y axis as follows :
charge q1 = -1.50nc at y= -0.600m, and charge q2 = +3.2nc at the origin
4 answers
asked by
naeem abbas
1,568 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
926 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
491 views
You have 23.0g of water initially at -46°C. How much energy in joules is required to
heat the ice to 0°C? c ice = 2.1 J/g°C. I
4 answers
asked by
Harrison
820 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
1,638 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
668 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
1,334 views
A figure shows a uniform metre rule which is pivoted at the 20cm mark and balanced horizontally by an object of weight 3.15N
4 answers
asked by
Blessings
1,873 views
A .25 kg pool ball is moving at 5.0m/s E towards a second identical ball at rest. After the collision, the first ball is seen
4 answers
asked by
Gar
3,127 views
In a marathon race, one runner is moving at 5.0 m/s passes a second runner moving at 4.5. What is the distance between the
5 answers
asked by
Lucina
1,948 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
4,571 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
992 views
a capacitor 8uf is charged to a potential difference of 100v. the energy stored by the capacitor is?
4 answers
asked by
Robotic
1,968 views
Find the effort of a machine whose mechanical advantage is 3 where load is 30N
5 answers
asked by
Anonymous
1,491 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
656 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
2,875 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
2,945 views
Two point charges of 16 microcoulomb and - 9 microcoulomb are placed at8 cm distance. determine the position of the point at
5 answers
asked by
Harsh
4,809 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
371 views
A 2.0 kg puck is moving east at 5.5 m/s. It catches up to and collides with a second identical puck moving due east at 3.0 m/s.
4 answers
asked by
Anonymous
1,238 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
547 views
charges of +2uc,+3uc,and -8uc are placed at the vertices of an equilateral triangle of side 10cm.
calculate the magnitude of the
4 answers
asked by
poppy
2,682 views
Two pullies are connected by a belt, Pulley A has a radius of 3 cm and pulley B has a radius of 6cm. As Pulley A rotates, a drop
4 answers
asked by
Anonymous
1,671 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
949 views
Two particles Q and P are shot up vertically.P was first shot with velocity of40m/s and after4s.Q was also shot up.If upon
5 answers
asked by
Boateng Emmanuel
2,258 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
2,750 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
1,623 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
4,451 views
An example of a conductor would be....
a glass cup b air c a copper wire d rubber covering on a wire
3 answers
asked by
redredered
179 views
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