# Physics

**AP-B Physics**

a bug on a turntable which is rotating at 2.00 radians over second sits there for 1.7 seconds before he is brushed away. What was the angular distance the bug traveled.

**Physics**

How much work is done when a mass of 3 kg (weighing 30 N) is lifted vertically through 6 m?. A hiker climbs a hill 300 m high. If she has a mass of 50 kg calculate the work she does in lifting her body to the top of the hill.

**physics**

A 2.26 kg object is subjected to three forces that give it an acceleration = −(8m/s^2)i + (6m/s^2)j. If two of the three forces are F1 = (36.2 N)i + (18N)j and F2 = −(12N)i + (8 N)j, find the third force.

**physics**

Find the acceleration of the two blocks sliding down the incline in the figure below. (Take m1 = 1.1 kg and m2 = 1.8 kg. Indicate the direction with the sign of your answer

**Physics**

calculate the magnitude and direction of the resultant of two vectors 5N and 7N inclined at an angle 30° to each other

**Physics**

a ball of putty has a mass of 1.5kg and is rolling toward the north with a velocity of 2m/s. it collides with another putty ball with the same mass travelling towards the east with a velocity of 10m/s. find the velocity of the combined mass after a completely inelastic collision

**Math**

A particular Chemistry book costs $6 less than a particular Physics book. Two such Chemistry books and three such Physics books cost a total of $123. Construct two simultaneous equations and solve them using the substitution method. Show your working. I just need help ...

**physics**

a pipe carrying 20degrees of water has a diameter 2.5cm.Estimate the maximum flow speed if the flow must be streamline?

**physics**

A 10-pound object is suspended by a string from an overhead support. A horizontal force of 5.8 pounds is applied on the object. The measure of the angle which the string makes with the horizontal is (A) 30° (C) 60° (B) 45° (D) 90° idk how to solve this pls help. can i use ...

**physics question, trombone?**

A trombone player stands at the end zone (x = 0) of a football field and begins to play its fundamental tone. Assume the trombone is a half open tube that is 3m long. How much would the trombone player have to move the slider in cm to play 25 Hz? I calculated the frequency of ...

**physics**

Two banked curves have the same radius. Curve A is banked at an angle of 12°, and curve B is banked at an angle of 20°. A car can travel around curve A without relying on friction at a speed of 19.5 m/s. At what speed can this car travel around curve B without relying on ...

**Physics**

A 5.0-kg rock and a 3.8 10-4-kg pebble are held near the surface of the earth. (a) Determine the magnitude of the gravitational force exerted on each by the earth.

**Physics**

Venus has a mass of 4.86 1024 kg and a radius of 6.05 106 m. (a) What is the acceleration due to gravity on Venus?

**Physics**

A raindrop has a mass of 5.9 10-7 kg and is falling near the surface of the earth. Calculate the magnitude of the gravitational force exerted in the following. (a) on the raindrop by the earth

**Physics**

The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force SM that the sun exerts on the moon is perpendicular to the force EM that the earth exerts on the moon. The masses are: mass of sun = 1.99 1030 kg, mass of earth = 5.98 1024 kg, ...

**Physics**

At a distance H above the surface of a planet, the true weight of a remote probe is six percent less than its true weight on the surface. The radius of the planet is R. Find the ratio H/R.

**physics question**

A 3m slinky rests on a table with a student holding each end. The students laterally shake the ends of the slinky to generate transverse waves. The student on the left shakes the slinky at 4 Hz with a 5 cm amplitude and the student on the right shakes it at 3 Hz with a 7 cm ...

**physics**

A skydiver of mass 81.5 kg (including outfit and equipment) floats downward suspended from her parachute, having reached terminal speed. The drag coefficient is 0.533, and the area of her parachute is 20.96 m^2 . The density of air is 1.14 kg/m^3 . What is the air's drag force...

**physics please check my answer**

Consider the following circuit that contains a battery and six identical resistors: The diagram has branch A with one resistor, connected to branch B with two resistors connected in parallel, and then branch B is connected to branch C with three resistors connected in parallel...

**physics**

A mass m1 = 28 kg on a frictionless ramp is attached to a light string. The string passes over a frictionless pulley and is attached to a hanging mass m2. The ramp is at an angle of θ = 31° above the horizontal. m1 moves up the ramp uniformly (at constant speed). Find the ...

**Physics**

A girl (22.5 kg) goes down a straight slide inclined 38.0° above horizontal. The child is acted on by his weight, the normal force from the slide, kinetic friction, and a horizontal rope exerting a 30.0 N force as shown in the figure. How large is the normal force acting on ...

**physics - please check my answer?**

Consider a block of copper that is a rectangular prism (a box) with sides 15 cm by 20 cm by 50 cm. The resistivity of copper is 1.68e-8. If you consider the resistances between the three sets of parallel faces, which has the middle value? A. The resistance between the 15 x 20 ...

**Physics - last question I'm stuck on!**

A pellet is fired through two circular plates .8 m apart, both rotating at -95rad/s. The angular displacement of second bullet hole is 82° from the first bullet hole. Calculate the bullet’s speed in m/s. If someone could help me see where to insert the factors in whichever ...

**Physics - please help!**

I don't understand this: Russian ice skater, Alina Zagitova, spins her way to projected Gold in the 2018 Olympics. During one particular spin, she moves from a camel spin that rotates at about 95. RPM to a tight spin. If her rotational inertia changes from 129kgmÂ² to 32kgm...

**Math-Physics**

What is the total force on the bottom of a 400-cm-diameter by 1.5-m-deep round wading pool due to the weight of the air and the weight of the water? (Note the pressure contribution from the atmosphere is 1.0 x 10^5 N/m^2, the density of water is 1 g/cm^3, g=9.8m/s^2.) (Answer...

**Physics**

Can someone help me do this? I'm not sure where to insert the numbers nor in which equation. The tires on your truck have 0.35 m radius. In a straight line, you drive 2600 m. What is the angular displacement of the tire, during this trip? Would the angular displacement be more...

**Physics**

Estimate the buoyant force that air exerts on you. (To do this, you can estimate your volume by knowing your weight and by assuming that your weight density is a bit less than that of water.) Assume that your weight is a about 1200N. F=

**Physics**

An electron oscillates one thousand million times per second along the z-axis with a displacement z(t)=sin(ωt) mm. What is the value of the electric fie ld E(t) produced at a distance r of ten meters (x=10m, y=0, z=0)?

**physics**

In an outdoor game a small bag of rice is thrown from near the ground with a velocity of 3.50 m/s at an angle of 30.00 above the horizontal. Find out how long the bag will be in the air before it lands at the same height from which it was thrown and how far it travelled ...

**physics**

a 50kg box is being pushed along a horizontal surface. the coefficient of kinetic friction between the box and the ground is 0,350.what horizontal force must be exerted on the box for it to accelerate at 1,20m/s square

**physics question**

Due to electric effects on the earth and in the atmosphere, there is an electric field near the earth's surface that points down. Assuming the electric field is uniform with a magnitude of 150 N/C, what charge would a 145g baseball need to float as though it were weightless? I...

**Physics**

I'm lost on this problem too! A 70kg stunt driver rounds a circular corner at 96km/hr (convert to m/s). The centripetal force on the driver is 856N. Calculate the radius in meters of the path that the driver took around the circular corner.

**Physics**

An elastic chord can be stretched to its elastic limit by a load of 8.0N. Assuming it gives an extension 250cm when a load of 0.4N is hung. What would be the chord length when a force of 2.8N is applied?

**Physics**

I don't understand this. A can filled with sand has a mass of 0.45kg is swung overhead in a horizontal circle of radius 0.6m at a constant rate of 2.5 revolutions per second. Find the angular momentum of the rock.

**physics**

A stuntman is being pulled along a rough road at a constant velocity by a cable attached to a moving truck. The cable is parallel to the ground. The mass of the stuntman is 90 kg. The coefficient of static friction between the road and him is 0.86. The coefficient of kinetic ...

**physics please help!!**

Two balls have 3 nC of excess charge and are 10cm apart. What is the magnitude of the repulsive force on each? Electric field = 27,000 Charge = 3e-8 Coulombs F = EQ = 8.1e-4 ...which is wrong.

**Physics**

An electron oscillates one thousand million times per second along the z-axis with a displacement z(t)=sin(ωt) mm. What is the value of the electric fie ld E(t) produced at a distance r of ten meters (x=10m, y=0, z=0)?

**Physics**

In an atomic nucleus what holds the protons together: the electrons, nuclear forces or gravitation? Which force is stronger?: neutron-neutron, neutron-proton or proton-proton?

**Physics**

We are made of atoms that contain electric charges. Why we do not feel any electric force in our daily life?

**Physics**

Compare your weight with the attraction ( or repulsion) force of two One Coulomb charges separated one kilometer. Is it larger, smaller or similar?

**Physics**

A thunderstorm with a potential difference of ten million Volts between two clouds produces a lightning stroke of ten thousand Amperes at its peak with a rise time of tenmicroseconds and a fall time of one hundred microseconds. How many Coulombs does it carry? What are the ...

**physics**

Two stationary point charges of +61.0µC and +0.48µC exert a repulsive force on each other of 172N. What is the distance between the two charges?

**physics**

1) A balloon rubbed against denim gains a charge of -8.45µC. What is the electric force between the balloon and the denim when the two are separated by a distance of 4.7cm? (Assume the charges are located at a point) 2)Two identical conducting spheres are placed with their ...

**physics**

A balloon rubbed against denim gains a charge of -8.45µC. What is the electric force between the balloon and the denim when the two are separated by a distance of 4.7cm? (Assume the charges are located at a point)

**Physics**

Does angular acceleration on a spinning disk increase centrifugal force?

**Physics**

A many Mass 90kg is moving at a constant velocity,he has kinetic energy of 2205j.calculate his velocity

**physics**

A block of mass 20kg is at rest on a rough horizontal ground,the coefficient of friction between the block and the ground is 0.3.A horizontal force is applied steadily to the block according to the law,F= t^2-t+4.calculate the time it takes the block to start moving.

**Physics**

A 6.50 horsepower self propelled lawn mower is able to travel at 0.56 m/s, starting from rest, in 0.050 s. If the lawn mower has a mass of 48.0 kg, what distance does the lawnmower travel in that time? (1 hp = 746 W)

**Physics**

Speed of the bus is 72 km per hour speed of the car is 15.5 meter per second which moves fast??

**Physics**

A Tevatron can accelerate particles to energies in the TeV range (1.00 tera −eV = 1.00×10^12 eV ). Its circumference is 6.40 km, and in a certain medical experiment protons will be accelerated to energies of 1.25 MeV and aimed at a tumor to destroy its cells. 1) How fast ...

**Physics**

For an outdoor lab experiment a car has a loud device attached to the roof. This device emits beeps with a pitch of 400 Hz. The device is set to constantly emit short beeps a rate of twice every second. The car drives at 25 m/s (About 55 mph) on a level track towards a student...

**physics**

Can somebody shows me how to get to the answer key? The answer for a) is 1.5, b) rP is 1.34AU and rA is 2.01AU and c) is .335AU Copy and past this link part by part as it is to see the figure: part1: webassign. part2: net part3: /katzpse1/7-p-009.gif Question: The figure below...

**physics please help**

Which harmonic frequencies can be detected in a tube closed at one end whose fundamental frequency is 200 Hz? 200 Hz 300 Hz 400 hz 600 Hz 1000 Hz It's a select multiple and I said the last three which was wrong.

**physics**

An archer pulls a bowstring back 0.390 m, and the spring constant of the bow is 675 N/m. a.) Find the amount of work the archer did to draw the bow. b.) Find the speed an arrow of mass 0.075 kg will have when it is shot from the bow. Assume no losses from friction.

**physics**

A 0.300 kg air-track glider moving at 2.20 m/s bumps into a 0.800 kg glider at rest. a.) Find the total kinetic energy after collision if the collision is elastic. b.) Find the total kinetic energy after collision if the collision is completely inelastic.

**physics**

At the intersection of Texas Avenue and University Drive, a blue, subcompact car with mass 820 kg traveling east on University collides with a maroon pickup truck with mass 2000 kg that is traveling north on Texas and ran a red light. The two vehicles stick together as a ...

**physics**

The figure below is a scaled representation of a planet's orbit with a semimajor axis of 1.528 AU. (Use the exact values you enter in previous answer(s) to make later calculation(s).) (a) Find the ratio of the aphelion-to-perihelion distance. rA rP = (b) Find the perihelion ...

**physics?**

In order to wake a sleeping child, the volume on an alarm clock is tripled. Under this new scenario, how much more energy will be striking the child's ear drums each second? A. twice as much B. three times as much C. approximately 4.8 times as much D. six times as much E. nine...

**Physics**

A fisherman is fishing from a bridge and is using a "50.0-N test line." In other words, the line will sustain a maximum force of 50.0 N without breaking. What is the weight of the heaviest fish that can be pulled up vertically, when the line is reeled in (a) at constant speed ...

**Physics**

A taut massless string connects two boxes. The boxes are placed on an incline plane at θ = 32.00. What is the acceleration of boxes as they move down the incline, given m2 = 1.0 kg, m1 = 7.2 kg, μ2 = 0.10 and μ1 = 0.20.

**Physics**

A frog in a hemispherical pod finds that he just floats without sinking in a fluid with a density of 1.33 g/cm3. If the pod has a radius of 5 cm and negligible mass, what is the mass of the frog? Answer in units of kg.

**Physics**

In two separate experiments, a sample of helium gas is taken from the same initial state to the same final state, along two separates paths on a P-V diagram. Path a has two parts: first an isochor and second isobar. Path b is an isotherm. Determine the work done by the gas (i...

**PHYSICS**

explain the statement the capacitance of a capacitor is 5uf

**Physics**

A uniform capillary tube closed at one end contained dry air trapped by a thread of mercury 8.5×10^-2m long.When the tube was held horizontally the length of the air column was 5×10^-2m,when it was held vertically with the closed end downwards the length was 4.5×10^-2m....

**Physics**

A uniform capillary tube closed at one end contained dry air trapped by a thread of mercury 8.5×10^-2m long.When the tube was held horizontally the length of the air column was 5×10^-2m,when it was held vertically with the closed end downwards the length was 4.5×10^-2m....

**PHYSICS**

EXPLAIN THE STATEMENT THE CAPACITANCE OF A CAPACITOR IS 5MICROFARAD

**physics**

A race car moving with a constant speed of 60 m/s completes one lap around a circular track in 50 s. What is the magnitude of the acceleration of the race car?

**Physics**

A thread of mercury of length 15cm is used to trap some air in a capillary tube with uniform cross sectional area and closed at one end.With the tube vertical and the open end uppermost,the length of the trapped air column is 20cm.calculate the length of the air column when ...

**Physics**

A chandelier of mass 120.0kg is supported by two cords. The first makes an angle of 60° with the ceiling and the second supports it horizontally to the wall. Find the tension in the two cords (g=9.8ms²)

**physics**

When determining the specific heat from a given metal in a calorimeter the mass of the water remains constant, but the mass of the metal is increased what would happen to the equilibrium temperature? Explain your choice.

**physics**

A sample of lead with a mass of 1.45kg is heated until it reaches its melting point at 330C. The lead is then heated further until it has entirely melted. During this process the lead absorbs a total of 4.46 104J as heat. What is the temperature at which the lead is initially ...

**Physics**

A gas occupies 8 litres at 23'C and 70cmHg what is the volume at stp

**Physics**

A fixed mass of gas of volume 600 cm cube at a temperature of 27 C is cooled at constant pressure to a temperature of 0C.what is the change in volume

**Physics**

The amplitude of a sinusoidal sound wave is quadrupled. a) By which factor is its intensity multiplied? b)By how many decibels does the sound intensity level increase?

**physics**

A ball thrown vertically from ground level is caught 3s later when it is at its highest point by a person on a balcony which is 14 m above the ground. Determine the initial speed of the ball

**PHYSICS**

I'm having some trouble with a problem on my physics pre-exam, if there is any formula please let me know so i can do a bit of research on it. any help is greatly appreciated in advance. The inner membrane of a cell membrane is negative relative to the outer surface. if 1.6 X ...

**Physics**

Can someone help me with the formula of horsepower? In my lesson, it shows me how power = ft*lb/s... but then it kinda stops and doesn't tell me how to find hp from this. I tried searching online but I'm still confused. There's something about watts and that it's practically ...

**physics**

A rock is thrown downward from an unknown height above the ground with an initial speed of 10m/s. It strikes the ground 3s later. Determine the initial height of the rock above the ground.

**physics**

You spot a plane that is 1.63 km north, 2.3 km east, and at an altitude 5.2 km above your position. 1) At what angle from due north (in the horizontal plane) are you looking? ( ) °E of N 2) Determine the plane's position vector (from your location) in terms of the unit ...

**physics**

Determine the x and y components of the following three vectors in the xy plane. 1) A 19-m/s velocity vector that makes an angle of 40° counterclockwise from the -x direction. x: 2) y: Explain please!

**Physics**

A raindrop has a mass of 5.9 10-7 kg and is falling near the surface of the earth. Calculate the magnitude of the gravitational force exerted in the following.

**Physics**

The drawing (not to scale) shows one alignment of the sun, earth, and moon. The gravitational force SM that the sun exerts on the moon is perpendicular to the force EM that the earth exerts on the moon. The masses are: mass of sun = 1.99 1030 kg, mass of earth = 5.98 1024 kg, ...

**Physics**

At a distance H above the surface of a planet, the true weight of a remote probe is six percent less than its true weight on the surface. The radius of the planet is R. Find the ratio H/R.

**Physics**

A student is skateboarding down a ramp that is 5.9 m long and inclined at 14° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 2.5 m/s. Neglect friction and find the speed at the bottom of the ramp.

**Physics**

A rocket blasts off from rest and attains a speed of 48 m/s in 14 s. An astronaut has a mass of 61.8 kg. What is the astronaut's apparent weight during take off?

**Physics**

A woman stands on a scale in a moving elevator. Her mass is 60.0 kg, and the combined mass of the elevator and scale is an additional 815 kg. Starting from rest, the elevator accelerates upward. During the acceleration, the hoisting cable applies a force of 9410 N. What does ...

**Physics**

A 5.0-kg rock and a 3.8 10-4-kg pebble are held near the surface of the earth.

**Physics**

Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 92 kg, and the mass of the woman is 68 kg. The woman pushes on the man with a force of 47 N due east. Determine the acceleration (magnitude ...

**physics**

The position of a particle moving along the x axis is given by x = (21 + 22t − 6t^2)m, where t is in s. What is the average velocity during the time interval t = 1s to t = 3s?

**science (physics)**

State gauss's theorem draw a graph showing the variation of electric field, as one moves from the centre of charge metal ball to a point on its surface and then to a far off outside point

**Physics**

The first leg of a relay race is semi circle of diameter 50m. If the runner covers the distance in 11s.calculate the average speedâ€

**science (physics)**

What is a Gaussian surface?A point charge of 2.0mueC at the centre of a cubic Gaussian surface 9.0cm on edge.What is the net electric flux through the surface?

**physics**

An Earth satellite moves in a circular orbit 616 km above the Earth's surface. The period of the motion is 96.8min. (a) What is the speed of the satellite? (b) What is the magnitude of the centripetal acceleration of the satellite

**physics**

In the figure below, a stone is projected at a cliff of height h with an initial speed of 44m/s directed 60° above the horizontal. The stone strikes at A, 5.8s after launching. (a) Find the height, h, of the cliff. (b) Find the speed of the stone just before impact at A. (c) ...

**physics**

A brick is thrown upward from the top of a building at an angle of 35° to the horizontal and with an initial speed of 14 m/s. If the brick is in flight for 3s, how tall is the building?

**physics**

Let = 2 î + 3 ĵ and = 2 î - 2 ĵ. Find the magnitude of the following. (a) and (b) + (c) - - 2

**physics question**

What factors affect the frequency of a wave? A. the amplitude B. the energy of the wave C. the wavelength of the wave D. the material through which it travels E. the velocity of the wave I said C,D, and E. Should there be anything else?

**physics**

A ball spins on a 0.5m-long string with a speed of 3.8m/s. Calculate the acceleration of the ball.

**physics**

A ball is thrown directly downward, with an initial speed of 11m/s, from a height of 56m. After what time interval does the ball strike the ground?

**physics**

An airplane starts from rest and accelerates at 11.5m/s^2. What is its speed at the end of a 655m runway?