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Physics Questions
Calculate the activity of a pure 5.8-μg sample of 3215P (T12=1.23×106s).
When five capacitors with equal capacitances are connected in series, the equivalent capacitance of the combination...
A toy cannon uses a spring to project a 5.22-g soft rubber ball. The spring is...
A box slides from rest down an inclined place that is 30 degrees above the horizontal...
Two forces F1 = -7.10i + 7.40j and F2 = 6.80i + 3.40j are acting on...
Considering the length of the resonance tube you used, what is the lowest frequency tuning fork...
A toy cannon uses a spring to project a 5.21-g soft rubber ball. The spring is...
An archer shoots an arrow at a bottle. The arrow flys at 34m/s. There is a...
4. How much work is it to lift a 25 kg sack of cement vertically 4.3...
Problem #5 A communications cable is 2.00 km long and consists of two parallel wires separated...
Determine the direction of the force that will act on the charge in each of the...
Pictured on the right are thee point charges Q1 = 18.4 μC, Q2 = -30.6 μC,...
2-N stone is dropped from the top of a cliff. The stone hits the ground 3...
Two speakers are placed along a wall 3 m apart. They are in phase and emitting...
A 66 Ω resistor and a 7.5 μF capacitor are connected in series to an ac...
Two objects repel/attract each other. What can one say about their charges?
explain using physics theory either one Why should you not put foil in the microwave? or...
A sledge loaded with bricks has a total mass of 18.5 kg and is pulled at...
What is the expression for the uncertainty in the total energy Etot of equation? Assume an...
Block B has a mass of 3.80kg and is moving to the left at a speed...
a) The frequency of light coming out from a laser source is 297 MHz. What is...
13. An object slides on a horizontal surface and comes to rest with an acceleration of...
A bag of rice weighs 2.00 lb on Earth. What would it weigh on the Moon,...
If a measure entity (thing) is a vector how many different types of information are required...
A speeding driver sees a police officer, hits her brakes, and changes her speed from 45...
Two charges q1 = −3.20 nC and q2 = +8.42 nC are at a distance of...
Approximately 3.9 x 106 kg of water falls 65 m over a waterfall each second. (a)...
True or false: couldnt figure out these few - When charges are only located OUTSIDE an...
Solve for distance using 90 db = 85 db + 20 log (20 ft/ distance) 1.8...
Q3. A car moves with a constant velocity of 25m/s east with respect to a person...
An electron passes through a point 2.67 cm from a long straight wire as it moves...
The second floor of a house is 6 m above the street level. How much work...
A 200 g mass is gently hung on a vertical spring which stretches it 20cm before...
A person wants to use a lever to lift a dumpster weighing 4700 N. The lever...
A microphone connected to an amplifier takes a 10 dB voice and turns it into a...
Light of wavelength 425.1 nm falls on two slits spaced 0.31 mm apart. What is the...
Two tiny objects with equal charges of 8.57 μC are placed at the two lower corners...
earth which orbits the sun in an elliptical path reaches its closest point to the sun...
A bullet is fired with a velocity of 200.0 m/s from the ground an angle of...
Red light of wavelength 650nm in air passes through two slits submerged under water with n=1.33....
A 236-m-wide river flows due east at a uniform speed of 2.1 m/s. A boat with...
A beam of microwaves with λ = 0.9 mm is incident upon a 9 cm slit....
A 200g block attached to a horizontal spring is oscillating with an amplitude of 2.0cm and...
Which of these is a pure compound, which is an element, and which is neither? helium...
Object A is moving due east, while object B is moving due north. They collide and...
An elliptical hair that is 80µ by 120µ in minor and major diameters that is 10...
To move a refrigerator of mass 140 kg into a house, a mover puts it on...
At some time, a charged particle with q = −1.24×10−8C is moving with instantaneous velocity v...
(2 dimensions, 1 object, 2 accelerations) 1) A projectile is thrown with a wind. The wind...
Masses of 1.0 kg, 2.0 kg, and 3.0 kg are each separately subject to a net...
A thin ball shell is shaped like a hollow ball with a radius of 26.6 cm....
A catfish is 2.5 m below the surface of a smooth lake. (a) What is the...
Prelab Problem: You have a parallel plate capacitor with circular plates of radius r = 10.0...
When a black hole of mass M1 merges with a black hole of mass M2, it...
Two children (m = 31.0 kg each) stand opposite each other on the edge of a...
A 2180-kg car is slowed down uniformly from 24.6 m/s to 5.2 m/s in 3.32 s....
A parallel plate capacitor has a charge Q, plates of area A and separation d, where...
A 2.5 kg block rests on a 30 ∘ slope and is attached by a string...
A truck moving at 45 m/s passes a police car moving at 36 m/s in the...
Two small, identical conducting spheres repel each other with a force of 0.025 N when they...
a rock is sliding down a hill. Assume that the hill is 20 meters high and...
At a point high in the Earth's atmosphere, He2+ ions in a concentration of 2.7×1012/m3 are...
A 66 kg water skier is being accelerated by a ski boat on a flat ("glassy")...
Two narrow, parallel slits separated by 0.850 mm are illuminated by 570-nm light, and the viewing...
A heat engine has an efficiency of 0.48. Initially, the engine performs net work W per...
Whenever two Apollo astronauts were on the surface of the Moon, a third astronaut orbited the...
A 2400-kg airplane pulls two gliders, the first of mass 330 kg and the second of...
A car moving at 87 km/h has tires of 76 cm diameter. If the vehicle comes...
Most of the galaxies in the universe are observed to be moving away from Earth. Suppose...
You have just had a new set of tires put on your car, and now the...
The primary side of a transformer has 935 turns and is connected to 118 Volts A/C....
One mole of oxygen gas is at a pressure of 5.90 atm and a temperature of...
True or False? Considering a door as a rigid body. Its angular motion happens in a...
two charged proteins P1 and P2 are located at the positions (1m,1m) and (-1m,1m) respectively on...
The length of a pencil is measured to be 10.00 cm with a ruler. What is...
A uniform, solid sphere of radius 4.50 cm and mass 4.50 kg starts with a purely...
A 120 cm^3 box contains helium at a pressure of 1.80 atm and a temperature of...
A sniper fires a rifle bullet into a gasoline tank, making a hole 51.0 m below...
mode field diameter (MFD) is an important parameter in characterizing single mode fibre properties which takes...
Question 4: What is the significance of those strange “36.79%” and “63.21%” numbers the procedure? That...
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