Science

PhysicsQ&A LibraryA mass on a spring vibrates horizontally on a smooth level surface (see the figure). Its equation of motion is x(t) = 8 sin(t), where t is in seconds and x is in centimeters equilibrium position (a) Find the velocity and acceleration at time t. v(t) = a(t) = (b) Find the position, velocity, and acceleration of the mass at time t = 21/3.Start your trial now! First week only $4.99!*arrow_forward*

Question

Tagged in

Science

Physics

Find answers to questions asked by students like you.

Q: A model rocket accelerates upward from the ground with a constant acceleration, reaching a height of...

A: Click to see the answer

Q: A point charge has a charge of 2.50 X 10-11 C. At what distance from the point charge is the electri...

A: Potential is given by , V=14πε0qr⇒r=14πε0qVwhere ,14πε0=9×10-9Nm...

Q: Block 1 (6 kg) is located on the surface of a table. A hand pushes horizontally to the right on bloc...

A: Click to see the answer

Q: A force F = (90, 80) N acts on a mass of 5 kg. At time t = 0 s, the mass is initially at rest. What ...

A: The x component of velocity is, vx=axt=Fxmt=90 N1.9 s5 kg=34.2 m/s

Q: If the pressure and volume of a system are given, is the temperature always uniquely determined?

A: Pressure and volume is given

Q: A person who has a mass of 47 kg is standing in an elevator which is accelerating downward. Accelera...

A: Click to see the answer

Q: Which of the following is the electrical potential energy stored in a capacitor of capacitance C, vo...

A: Given data: Capacitance is C Voltage difference is ∆V Charge is Q

Q: The figure below shows the electric field vector at various points in a region of space. Electric fi...

A: The electric potential in an electric field decreases when moving along the direction of electric fi...

Q: A rock is thrown straight up. What is the net external force acting on the rock when it is at the to...

A: A rock is thrown upwards

Q: In a shipping yard, a crane operator attaches a cable to a 1260-kg shipping container and then uses ...

A: Click to see the answer

Q: A dart is loaded into a spring-loaded toy dart gun by pushing the spring in by a distance d. For the...

A: Given data The initial distance is x1=d The final distance is x2=2d The spring energy is, Es=12Kx12=...

Q: What is the weight in newtons of a 6.3 kg package of nails?

A: Given data: The mass of the package of nails is: m=6.3 kg The weight of the package of nails is: W T...

Q: Infrared light of wavelength 2.5 μm illuminates a 0.20-mmdiameter hole. What is the angle of the fir...

A: Click to see the answer

Q: A 0.730-kg projectile travels with a velocity or magnitude 66 km/h. What is the bullets linear momen...

A: Click to see the answer

Q: An object can move along a horizontal line (the + position axis). Assume that friction is so small t...

A: According to the given figure, up to two seconds, the slope of the velocity-time graph shows that th...

Q: Standing waves can be said to be due to “interference inspace,” whereas beats can be said to be due ...

A: Given: Standing waves can be said to be due to “interference in space,” whereas beats can be said to...

Q: (III) A 3.65-kg block of wood (SG=0.50) floats on water. What minimum mass of lead, hung from the wo...

A: mw=Mass of wood=3.65 kgSGw=Specific gravity of wood=ρwρwa=0.5SGl=Specific gravity of lead=ρlρwa=11.3...

Q: Block 1 (m1 = 6 kg) is resting on top of block 2 (m2 = 2 kg) on the floor of an elevator. The elevat...

A: Draw the free-body diagram of block 1 and block 2 as:

Q: calculate density of air at 100 degrees Celsius and 2.105 Pa. It's known density of air is 0 degrees...

A: Click to see the answer

Q: Need help

A: The vector in the form of components can be given as follows, For A:→Ax=-AsinθA=-12sin20°=-4.10Ay=-1...

Q: What relation exists between cross sectional area and velocity of fluid? Velocity and pressure?

A: Click to see the answer

Q: Three ice skaters meet at the center of a rink and each stands at rest facing the center, within arm...

A: Apply principle of conservation of momentum Along x direction mBvB+mCvCx=0mCvCx=-mBvBvCx=-mBvBmC ...

Q: Consider a thin, spherical shell of radius 13.0 cm with a total charge of 28.4 µC distributed unifor...

A: Given data Radius of the sphere,R=13.0 cm Total charge, Q=28.4 μC=28.4×10−6 ...

Q: A 7 kg block measures 9 cm by 15 cm by 27 cm. When it slides on a 15 cm by 27 cm face, it moves with...

A: The kinetic frictional force is given by, fk=μkN Here,μk is the coefficient of kinetic friction, N ...

Q: Physics Question

A: The free-body diagram of an object consists of all the forces acting on it. The forces include conta...

Q: Under normal circumstances, a separation of charges between the earth and the atmosphere produces an...

A: Given, electric field is in downward direction and balloon has negative charge

Q: A bicycle tire is spinning counterclockwise at 2.40 rad/s. During a time period Δt = 2.20 s, the tir...

A: Given data: The bicycle tire's speed in the counterclockwise direction is: ω1=2.40 rad/s The bicycle...

Q: A 1.0 nC positive point charge is located at point A shown. The electric potential at point B isA. 9...

A: Click to see the answer

Q: A hydrogen atom is excited from its ground state to the n = 4 state. The atom subsequently emits thr...

A: The energy corresponding to the nth state of the hydrogen atom is given by:

Q: Why would you be concerned about observing a cluster of several balls in the Millikan electron charg...

A: Introduction: Millikan's oil drop experiment basically measured the charge of an electron. His exper...

Q: A blackbody radiator in the shape of a sphere has a surface area of 1.3. If the temperature of the o...

A: Hey there, I have taken all the values in S.I units, since no units are mentioned in the problem. Gi...

Q: Determine the tension force F required to stabilize the 500 lb tension so that the resultant force ...

A: Click to see the answer

Q: A cliff diver plunges from a height of 100 ft above the water surface. The distance the diver falls...

A: Given, distance fallen by diver in t seconds, d(t)=16t2 ft

Q: Photons of a certain ultraviolet light have an energy of 6.96 x 109 J. (a) What is the frequency of ...

A: a) The expression for the frequency is, f=Ehf=6.96×10-19J6.63×10-34Jsf=1.04×1015Hz

Q: A sound with 10 times the amplitude of another sound has a sound level that is 20 decibels higher. T...

A: For every 10 decibel rise in the sound level, the amplitude increases 10 times.

Q: A stiff, 10-cm-long tube with an inner diameter of 3.0 mm is attached to a small hole in the side of...

A: Given information: The length of the tube, L=10 cm=0.1 m The inner diameter of the tube, r=3.0 mm=3....

Q: What is the answer to number 15-17? make sure to show work please

A: Click to see the answer

Q: The angular position of a rod varies as 20.0t2 radians from time t = 0 . The rod has two beads on it...

A: Since there are multiple sub-parts posted, we will answer the first three sub-parts for you. If you ...

Q: Riders on the Power Tower are launched skyward with an acceleration of 4g, after which they experien...

A: (a) apparent weight, W'=m(g+a) that is, W'=60 kg(g+4g)W'=60 kg(5g)W'=60 kg(5)(9.8 m/s2)W'=2940 N

Q: A 2.0-m-long slab of concrete is supported by rollers, as shown. If the slab is pushed to the right,...

A: The distance the slab moved before its center of gravity is to the right of the contact point with t...

Q: If the acceleration, a(t), is given, integration can be used to derive v(t) and x(t). The follwing e...

A: (4) The first kinematic equation for the car is Here, u is the initial velocity of the car, a is th...

Q: A small positive charge q experiences a force of magnitude F1 when placed atpoint 1 as shown. In ter...

A: Click to see the answer

Q: (d) 6N 8 kg (c) 5N (a) 10 N (b) 9 N 4 kg 8 N 10 N 8N 5 kg 6N 5 kg

A: Click to see the answer

Q: Write an equation for a function with the given characteristics. A sine curve with a period of 4π, a...

A: Click to see the answer

Q: A sphere of mass 1.0 kg and radius 0.5 m is attached to the end of a massless rod of length 3.0 m. T...

A: Click to see the answer

Q: the temperature of ambient air in a certain location is measured to be -40 C. Express this temperatu...

A: Given: The temperature of the ambient air in a certain location = -40 0 C

Q: For an Atwood experiment how could you vary a total mass and keep net force constant or vary net for...

A: Let the two masses in the Atwood machine are denoted by 'M and 'm' and the value of 'M' is greater t...