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Physics
Page 14
Questions (147,298)
A car with a mass of 1500kg starts from rest and accelerates to a speed of 18m/s in 12s. Assume that the force of resistance
5 answers
asked by
Anonymous
4,549 views
A uniform meter rule of mass 100g balance at a 40cm mark when a mass x is placed at the 10cm mark.What is x?
7 answers
asked by
Abubakar
5,864 views
a stone is dropped from a 75m building. when a stone has dropped 15m, a second stone was thrown downward with an initial
5 answers
asked by
Oscar Zambrano
3,688 views
A cannon on a level plain is aimed 50 degrees above th e horizontal and a shell is fired with a muzzle velocity of 1200 ft/s
4 answers
asked by
valerie
1,722 views
If 6.40 x 10^-19 joule of work is required to move a proton between two points A and B in an electric field, what is the
6 answers
asked by
Priscilla
5,120 views
Please Help. A 5 kg object is propelled from rest at time t=0 by a net force F that always acts in the same direction. The
5 answers
asked by
Zee
3,960 views
A 65 kg sprinter completes a 100 m race in 9.83 s. Calculate the average kinetic energy of the sprinter.
4 answers
asked by
Onyeka
1,625 views
A ball is shot straight up into the air with initial velocity of 47 ft/sec. Assuming that the air resistance can be ignored, how
4 answers
asked by
Anonymous
10,394 views
An object is placed at a distance of 60 cm from a converging lens with a focal length of 20cm. What is the magnification of the
5 answers
asked by
Lance
3,450 views
Suppose a planet is discovered orbiting a distant star with 13 times the mass of the Earth and 1/13 its radius. How does the
4 answers
asked by
Cooper
2,728 views
A load of 4N extends a spring by 10mm. What load would extend it by 15mm?
5 answers
asked by
Luyando
721 views
Two fi gure skaters are moving east together during a
performance. Skater 1 (78 kg) is behind skater 2 (56 kg) when skater 2
5 answers
asked by
shan
3,217 views
A ball is thrown vertically into the air so that its height s after t seconds is given by the equation, s=-1/27(t^2)+4√t. Find
4 answers
asked by
Glen
2,252 views
What effort is exerted to lift a load of 150N with a machine having a velocity ratio of 3 and efficiency of 20%
4 answers
asked by
Ifedayo
1,380 views
A large swinging ball is used to drive a horizontal iron spike into a vertical wall. The centre of the ball falls through a
7 answers
asked by
physicslover
3,122 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
655 views
a force 150N is inclined at 50 to the horizontal direction find it component in the horizontal and vertical directions
4 answers
asked by
Anonymous
2,064 views
Two point charges Q1 = 10µc and Q2 = -2µc are arranged along the x-axis at x
= 0 and x =4m respectively. Find the positions
4 answers
asked by
Mike
3,344 views
An angler has a fish at the end of his line, which is being reeled in at the rate of 2 feet per second from a bridge 30 feet
4 answers
asked by
Andrea
1,334 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
4,815 views
A 25m ladder is leaning against a
vertical wall. The floor is s lightly slippery and the foot of the ladder slips away from the
4 answers
asked by
Miriama
1,146 views
Two people start running from rest. The first person has a mass of 59 kg and is wearing
dress shoes with a coefficient of static
4 answers
asked by
Anonymous
1,560 views
n order to measure the transfer of thermal energy from one temperature body to another, what device would be most useful?
a Meter
3 answers
asked by
6th g=rade
141 views
Distinguish between work energy and power if a body of weight 10N is lifted from the floor to a table 2m above the calculate the
4 answers
asked by
Anonymous
484 views
A light string that is attached to a large block of mass 4m passes over a pulley with negligible rotational inertia and is
4 answers
asked by
Mary
4,877 views
How is an echo formed?
3 answers
asked by
Need to know
232 views
A ball of mass 50 g tied to the end of a 50 cm inextensible string is whirled around in a vertical circle. Find the tension in
3 answers
asked by
hart
1,062 views
Explain whether the photons emitted by a bright light bulb are more energetic than those emitted by a dim light bulb of the same
3 answers
asked by
Jenny
2,097 views
In an experiment to estimate the size of an oil molecule the diameter of the oil patch was measured to be 200mm for an oil drop
3 answers
asked by
Stecy
559 views
a stone is thrown horizontally from the top of a vertical wall with a velocity of 15m/s, hits the horizontal ground at a point
3 answers
asked by
Josh aile
1,004 views
Which statement about electric charges is correct?(1 point)
Responses Two objects with negative charges will attract each other.
1 answer
asked by
Hi
194 views
a piece of copper of mass 250gram at a temperature of 900 degree Celsius is quickly transformed to a vessel of negligible
2 answers
asked by
Dele
886 views
Which statement best describes the charges of the particles involved in the diagram above? (1 point) Responses A neutral
1 answer
asked anonymously
51 views
What is the relationship between a substance's thermal energy and its kinetic energy? (1 point)
A) As the substance's thermal
1 answer
asked anonymously
77 views
Which object would have the slowest speed at terminal velocity?
a 10-kilogram block with no parachute • a 50-kilogram block
1 answer
asked anonymously
48 views
What is the best description of thermal energy?(1 point) Responses
Thermal energy is a type of kinetic energy. Thermal energy is
1 answer
asked by
.
57 views
Which electromagnet will produce the strongest magnetic force.
1 answer
asked anonymously
28 views
A team of students is building an electric circuit with a light bulb, battery, and switch. Which is the best description of the
1 answer
asked anonymously
41 views
In one or two sentences, make and justify a claim about two aspects of the picture that illustrate behaviors of light.
1 answer
asked by
aaagtuygy
29 views
At some point in the combustion cycle of an engine, the temperature of a combusted air-fuel mixture is 582 degrees Celsius.
6 answers
asked by
Nick
3,994 views
A big luxury car weighing 1.96 x 104 N (about 4400 lb), travelling in the x
direction makes a fast stop; the x component of the
4 answers
asked by
Anonymous
2,873 views
Water enters the heater at 25⁰C and leaves at 80⁰C. What is the temperature change in ⁰Fahrenheit, ⁰Kelvin, and
5 answers
asked by
Coke15
2,806 views
I have a big online test and would really appreciate if you could please check my answers before I submit them (I only have 1
5 answers
asked by
Tyger2020
1,904 views
Two objects with equal masses are in motion. Which object will have more kinetic energy? (1 point)
the object with the greater
60 answers
asked by
PLEASE HELP!!!
24,388 views
The quantity of heat required to raise the temperature of 500g of copper from 16oc +116oc assuming the specific heat capacity of
7 answers
asked by
Damilola
2,386 views
A sled of 6 kg mass is moving along a smooth, horizontal ice surface with a velocity of Vo. A force of 36 N is applied to the
5 answers
asked by
Alisha
1,193 views
A 75 kg water skier is pulled by a horizontal tow rope. She goes from rest to 6.0 m/s in 4.5 s when the rope's tension is 140 N.
4 answers
asked by
amalia
866 views
A solid cylinder with a radius of 5.08 cm starts from rest at the top of a 12m long ramp inclined 20.3 degrees above the
5 answers
asked by
Anonymous
2,497 views
the fence posts around a large pasture are 2.5m apart. a horse starts running west beside the fence. when the horse passes the
5 answers
asked by
Sarah
2,442 views
The energy given off by 300 grams of an alloy as it cools through 50°C raises the temperature of 300 grams of water from 30°C
5 answers
asked by
jane
5,350 views
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