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Physics
Page 16
Questions (146,839)
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
2,670 views
The ski slopes at Bluebird Mountain make use of tow ropes to transport snowboarders and skiers to the summit of the hill. One of
6 answers
asked by
Honey
7,212 views
To leave Nicholson, you exit via the door to the quad. The door is 40 inches wide and has a mass of 200 kg.
You push the door
4 answers
asked by
Kim
1,923 views
Heat from burning a fuel is absorbed by a copper calorimeter. The calorimeter has a mass of 81.34 g and contains 200.0 g of
4 answers
asked by
lomonoyan
1,004 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
1,573 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
2,059 views
Radio amateurs are permitted to communicate on the "10 meter band." What frequency of radio waves corresponds to a wavelengthy
4 answers
asked by
Trey
3,558 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
1,875 views
How long would it take a 1 200 W heater to melt 1.00 kg of ice at -12.0°C, assuming all the energy from the heater is absorbed
4 answers
asked by
olive
4,718 views
The force of gravity at Earth's surface on an astronaut is 634N. What is the force of gravity on the same person at each of the
4 answers
asked by
Melissa
2,472 views
A rocket is launched with an initial velocity of zero, and with acceleration in feet per second per second defined by:
--------(
4 answers
asked by
Michael
2,425 views
An automobile moving at a constant velocity of 15m/s passes a gasoline station. Two seconds later, another automobile leaves the
4 answers
asked by
Abbie
6,938 views
In a motorcycle race, one lap of the course is 650 m. At the start of the race, John sets off 4 seconds after Tom does, but John
4 answers
asked by
Taylor
2,022 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
4,811 views
The angular speed of a larger pulley wheel (radius=15cm) is 50 rev./min. Find the angular speed of the smaller wheel
4 answers
asked by
Mary
1,425 views
A man travels along a square path each side of length 100m with a velocity of 40m/s,50m/s 40m/s and 50m/s respectively calculate
4 answers
asked by
adam
286 views
A soccer ball is kicked from the ground and lands 2.2 seconds later. If the ball was kicked at an angle of 55 degrees above
4 answers
asked by
Lance Gladbach
5,986 views
A 30 N fishing pole is 2.00 m long and has its center of gravity .350 m from the heavy end. A fisherman holds the end of the
5 answers
asked by
Jennifer
1,640 views
calculate the final temperature of a 400g of water at 80 degree celsius if it is poured into a 100g pot at 30 degree celsius.
4 answers
asked by
Kaye
2,240 views
Two electrostatic point charges of +60.0 uC and +50.c uC exert a repulsive force on each other of 175 N. What is the distance
6 answers
asked by
Pablo
10,254 views
Which of the following is the correct equation for Στ for the given rotation axis? All rotation axes lie on the x axis and
3 answers
asked by
Jimmy
1,345 views
The truck in that example is traveling at 19 m/s. The density of air is 1.29 kg/m3. By how much does the pressure inside the
3 answers
asked by
Anonymous
1,416 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
1,083 views
Green light is emitted when electrons in a substance make a particular energy-level transition. If blue light were instead
3 answers
asked by
Jake
1,815 views
A 20 kg cannonball is fired from a 2.4 x 103 kg. If the cannon recoils with a velocity of 3.5 m/s backwards, what is the
3 answers
asked by
Ula
1,545 views
A cart full of packages weighing 180 pounds is rolling down a ramp 12 feet long at an incline of 25° (the force applied by
4 answers
asked by
Elise
674 views
Which of the following statements about electrical charges is true?(1 point)
Opposite charges attract one another. Opposite
3 answers
asked by
DINO NUGGETS
369 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
555 views
calculate work done using machine to raise a load of 10kg through height of 2m and effenciency is 70%
3 answers
asked by
Dan
499 views
An aeroplane is moving at 200km/h due 60?. The plane experience a wind blowing at 120km/h due 210?. Find the resultant velocity
3 answers
asked by
laban
556 views
The artist Anya Calderona constructs the mobile shown in the figure.(Figure 1) In the illustrated configuration, the mobile is
4 answers
asked by
Amy
5,336 views
At t = 0 a car is due 2 km north of you heading west moving 13 km/s after 1.5 s. What is the angle in radians between you and
5 answers
asked by
Muneer
2,244 views
A 310,000 GRT vessel needs to achieve a steady speed of 13 knots after exiting a canal. If the speed of the vessel before
2 answers
asked anonymously
253 views
5. Darth Vader unleashed the power of the DARK SIDE (1225 watts) on the unsuspecting Jedi.If he did 727 joules of work how much
4 answers
asked by
Essence Forbes
1,181 views
A concrete sidewalk is constructed between two buildings on a day when the temperature is 25 0C. The sidewalk is 6 m long and
1 answer
asked by
Pam
741 views
Three negative charges with charge –q occupy the vertices of an equilateral triangle with sides of length L as shown below
a)
1 answer
asked anonymously
39 views
what happens when a falling object reaches terminal velocity?
1 answer
asked anonymously
77 views
An alternating emf has an effective value of 176,75v and a time period of 0,01 seconds. Determine
a) The maximum value of this
1 answer
asked anonymously
43 views
A model depicts two balloons of the same size with identical negative charges being moved toward one another at the same speed.
1 answer
asked by
u don't know me
44 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
75 views
Which is an example of a load in an electric circuit?(1 point)
Responses wiring wiring speaker speaker 9-volt battery 9-volt
7 answers
asked anonymously
38 views
Which statement describes the relationship between the mass of two objects and their gravitational attraction toward each other?
1 answer
asked anonymously
43 views
Below is a picture of a man pushing a wheelbarrow. Which of the following options correctly labels the Effort (E), Load (L), and
1 answer
asked anonymously
30 views
Gravity and Air Resistance Quick Check
1 of 41 of 4 Items Question Which statement explains why astronauts appear to bounce when
5 answers
asked by
wasssupppp
61 views
Which electromagnet will produce the strongest magnetic force.
1 answer
asked anonymously
20 views
Non-Contact Forces Unit Test
1 of 131 of 13 Items Question Which statement explains how the charges on objects determine the
1 answer
asked anonymously
65 views
Find the density of an object which is 8500g and 5000cm^3
1 answer
asked by
Mike
95 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
3,989 views
calculate the amount of heat required to change 5 pounds of ice at 32 degrees to water 32 degrees
5 answers
asked by
miguel
4,670 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
2,803 views
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