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Physics
Page 69
Questions (147,179)
Two parallel, straight wires that are very long are separated by a distance of 0.065
m and carry currents of I1 =15 A and I2
3 answers
asked by
KAIT
1,965 views
A car of mass 1200kg travelling @ 72 km/h is brought to rest in 4s.Find a) the average deceleration b)the average braking force
7 answers
asked by
Luc
2,959 views
A mass 5kg is whirled in a horizontal circle @ 1 end of a string 50cm long,the other end being fixed. If the string when hanging
3 answers
asked by
Fate
1,835 views
1.) A small sphere of charge 2.4 μC experience a force of 0.36 N when a second sphere of unknown charge is placed 5.5 cm from
3 answers
asked by
Christine
2,276 views
At a rock concert, the sound intensity 1.0 in front of the bank of loudspeakers is 0.10 . A fan is 30 from the loudspeakers. Her
4 answers
asked by
Ness
3,431 views
An observer 2 km from the launching pad observes a vertically ascending missile at an angle of elevation of 21 degrees. 5
3 answers
asked by
H
2,281 views
which of the following sets of quantum numbers (n,l,ml,ms) describes the electron which is most easily removed when a sodium
3 answers
asked by
lavonne
1,621 views
A 70kg man stands on a bathroom scale in an elevator. As the elevator starts moving, the scale reads 90kg
Is the elevator
4 answers
asked by
help
2,357 views
A meter stick is pivoted at its 50-cm mark but does not balance because of non-uniformities in its material that cause its
5 answers
asked by
jess
4,581 views
Three equal charges q form an equilateral triangle of side a. Find the potential at the center of the triangle.
Express answer in
3 answers
asked by
Heather
1,485 views
please check:
Two point charges, initially 1 cm apart, are moved to a distance of 3 cm apart. By what factor do the resulting
4 answers
asked by
physics
3,662 views
When working with the combined gas law you would use the following equation:
(P1)(V1)/T1 = (P2)(V2)/T2 I am not quite sure how
5 answers
asked by
Anonymous
2,163 views
A drag racer, starting from rest, speeds up for 402 m with an acceleration of +17 m/s^2. A parachute then opens, slowing the car
5 answers
asked by
Anonymous
3,689 views
1. Explain why conduction, convection, and advection cannot occur in space.
^is it cause there is no gravity in space? 2. Does
4 answers
asked by
Kim
1,220 views
an energy value of 3.313x10^-19 joules is needed to break a chemical bond. what is the wavelength of energy needed to break the
3 answers
asked by
ashley
1,087 views
The plates of a parallel plate capacitor each have an area of 0.40 m2 and are separated by a distance of 0.02 m. They are
3 answers
asked by
kevin
1,585 views
Which would have greater gravitational attraction?
1. Earth and the moon 2. Earth and a bouncy ball 3. Earth and the sun 4. Earth
2 answers
asked by
ADUDE
122 views
Calculate the kinetic energy, in Joules, possessed in each of the following scenarios and match with the correct answer. K.E. =
2 answers
asked by
fe
101 views
Gravitational Force, Attraction, and Mass Quick Check
these are correct for Connections Academy 10th grade Physical Science as of
5 answers
asked by
mmyoui
727 views
For the following graphs of position versus time (in one dimension), please determine the acceleration. Need someone to check
4 answers
asked by
Jeremy
121 views
A vehicle with mass of 1200kg accelerates from rest upward with an incline of 1:25 and reaches a speed of 72km/h after 2
2 answers
asked by
Boikokobetso Koloko
109 views
What is the density of a mixture of 1.5m3 of water and 0.5m3 of alcohol of density 800kg/m3? (Density of water = 1000kgm^-3 )
2 answers
asked by
chukwudi Christian
126 views
A beam of ions passes undeflected through two parallel horizontal plates 1.5cm apart having a p.d of 3000v when a perpendicular
3 answers
asked by
Fatima
336 views
a ball is dropped from the top of the tower 80 ft.high at the same instant that a second ball is thrown upward from the ground
2 answers
asked by
jomari
999 views
A toy rocket is launched into the air at an initial velocity of 32 ft/sec, as shown on the graph below. The function
3 answers
asked by
Rebekah L.
2,098 views
A baby carriage is rolling down a hill at 18 m/s. If the carriage has 1600 J of kinetic energy, what is the mass of the
2 answers
asked by
mark
1,043 views
A group of particles is traveling in a magnetic field of unknown magnitude and direction. You observe that a proton moving at
3 answers
asked by
Luigi
835 views
A ray of green light has a wavelength of 5.34 x 10-7 m. What is the frequency? (Hint: remember the speed of light!)
3 answers
asked by
Lilly
1,474 views
A 1.47-newton baseball is dropped from a height of 10.0 meters and falls through the air to the ground. The kinetic energy of
3 answers
asked by
Katie
4,280 views
Calculate the electric field intensity 30cm from a point of charge 20C
3 answers
asked by
Anonymous
821 views
The specific heat of granite is 0.80 kJ/kg·°C. If 2.0 MJ of heat are added to a 100−kg granite statue of James Prescott
4 answers
asked by
Anonymous
1,109 views
An object fired horizontally with a velocity of 30m/s from a top of a taal tower 250m high.The object lands on top of a building
4 answers
asked by
KESSE
877 views
the acceleration of the gravity on the moon is 1.62m/s^2. if a ball is dropped on the moon from a height of 1.50m, determine the
3 answers
asked by
jenna
805 views
Light photons with energy 7.3 eV strike a metal surface and eject electrons with energy 2.7 eV. What is the Work Function of the
3 answers
asked by
Anonymous
1,183 views
Hoping Henry can help on previous prob.
A ball is thrown upwards from a roof top, 80ft above the ground. It will reach a maximum
4 answers
asked by
Mike
818 views
A solid weighs 4.8g in air, 2.8g in water and 3.2g in kerosene. Calculate the ratio of the density of the solid to that of
4 answers
asked by
Patience
1,507 views
the time of flight of an object projected with speed 20m/s at an angle 30¡ã with the horizontal is
3 answers
asked by
khushi
2,072 views
A coiled spring in a waist trimming excercise requires a force of 54N to compress it by 0.20.find the force constant of the
3 answers
asked by
Zaherah
2,398 views
Block B has a mass of 2.20kg and is moving to the left at a speed of 2.30m/s. Block A has a mass of 2.70kg and is moving to the
3 answers
asked by
Emily
701 views
A 20 kg mass slides down an inclined plane which is at an angle of 60 degrees to the horizontal
1. Horizontal component of weight
3 answers
asked by
Alyssa
796 views
A lead bullet of mass 50 grams is fired with a velocity of 200m/s into a lead block of mass 950 grams. Given that the lead block
4 answers
asked by
Williams
2,224 views
When a 3600 lb automobile runs out of gas, it is pushed by its unhappy driver and a friend a quarter of a mile (0.250 mi). To
4 answers
asked by
Kayla
813 views
Multi-step prob During a trampoline competition, a trampolinist leaves the mat when her center of gravity is 6 feet above the
3 answers
asked by
ⒽⒺⓁⓅ
881 views
Calculate d energy of d 3rd level of an atom if d ground state energy is -24.8ev
3 answers
asked by
Mei
755 views
A body with a mass of 75 kg is located at a height of 20 m. If it is allowed to free fall to the ground. What will be its
4 answers
asked by
Danny
687 views
Suppose you would like to cross a 209-foot wide river in a boat. Assume that the boat can travel 32 mph relative to the water
4 answers
asked by
Adam
871 views
How long would it take a 1.00 x 10^3 W heating element to melt 2.00kg of ice at -20 deg C, assuming all energy is absorbed by
3 answers
asked by
R
1,973 views
A baseball player uses a bat with mass mbat to hit a ball with mass mball. Right before he hits the ball, the bat's initial
3 answers
asked by
Ray
1,094 views
A glass bulb with radius 15 cm is filled with water vapor at a temperature of 500 K. On the exterior of the bulb a spot with
3 answers
asked by
sand
760 views
The two-mile linear accelerator at Stanford University in California "appears" to be less than a meter long to the electrons
3 answers
asked by
Jason
912 views
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