21.A bowling ball whose mass is 4.0 kg is rolling at a rate of 2.5 m/s. What is its momentum? 22. A skateboard is rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg-m/s. What is its mass? 23. A pitcher throws a baseball with a mass of 0.5 kg and a momentum of 10 kg-m/s. What is its velocity?

Q: Find the volume of a liquid present in a dish of dimensions 10 cm x 10 cm x 5 cm.

A:

Q: A bus is moving on a straight road 10 m/s. It is acceleration at 28 m/s². What will be it's velocity…

A: Given data :                       Acceleration    =     a                      Initial velocity…

Q: A lightbulb is connected to a battery and glows. Does more current flow into the bulb or out of the…

A:

Q: from the sun is D = 150 million km. Using the equation to model the temperature of R² the earth,…

A: Here temperature of the earth                                  Te=…

Q: A vault is opened by applying a force of 300 N perpendicular to the plane of the door, 0.70 m from…

A: Given data:  Force (F) = 300 N Perpendicular distance (r) = 0.70 m Required: Torque (τ)

Q: Mass of a body is 2.022 kg, What is it's weight?

A: The weight of an object is nothing but the force of gravity acting on it, which is given by the…

Q: Consider the following arrangement: String Steel cube A and B are weighing machine based on springs.…

A: Initially steel cube was not dipped in water . therefore , reading of weighing machine will equal to…

Q: Green glasses. Your seatmate's glasses appear greenish (500 nm) when white light reflects from it.…

A: When light is incident on a surface coated with a thin film,  the light first passes through the…

Q: A car is moving at a speed of 10 m/s, so if its speed is doubled due to uniform acceleration within…

A: Apply the first kinematic equation and substitute the required values to determine the acceleration.

Q: A 0.150-m-radius grinding wheel, starting at rest, develops an angular speed of 13.0 rad/s in a time…

A:

Q: A force of 240 N is applied to an object of area 8 m². Find the pressure?

A:

Q: cal direction with a constant ace ion in static pressure occur.

A:

Q: A uniform magnetic field is in the positive z direction. Note that a positively charged particle is…

A: In the given question, Magnetic field is in z direction. Charge particle is moving in x-direction…

Q: What does it mean to state that something is on the periphery of something else?

A: the external boundary of any surface or area. the external surface of a body. the edge or outskirts,…

Q: Spyros the cat got hungry. He left his bed to go to his food bowl. His velocity was v(t) m/s…

A: v(t) is the velocity

Q: The figure below represents the position-time graph of a horizontal oscillator. The maximum speed…

A:

Q: Two children seat themselves on a seesaw. The one on the left has a weight of 400 N while the one on…

A: Write the given values with the suitable variables. WL=400 NWR=300 Nr=1.8 m Here, WL, WR, and r are…

Q: The series connection of two resistors, 3 kQ and 5kQ respectively, is connected in parallel with a…

A:

Q: A single-stage, single-cylinder compressor is rated at 425 m³/min (7.0833 m³/s) of air. Suction…

A: Given that                  Initial pressure (P1) = 101.325kPa                  Initial Temperature…

Q: The voltage in circuit is 14 V and resistance is 2 ohms, calculate the current ?

A: Ohm's law states that the voltage across a conductor is directly proportional to the current flowing…

Q: In one of the scenes in a movie, a stuntman is required to jump across a river 45.0 m wideon a…

A: Kinetic energy is a form of energy that an object or a particle has by reason of its motion. If…

Q: The sound waves travel with speed. of 328 m/s. If is wavelength is 8 m. Find the frequency of wave?

A: Given  Speed (v) = 328 m/s  Wavelength (λ) = 8 m  We know , relation between speed of sound (v) ,…

Q: 12. The general construction of a capacitor is placing a dielectric between two conductors. However,…

A: The charged sphere, charged rectangular plate and a charged cylinder, all can store charge and hence…

Q: Q2/Determine the range of weights (W) for which the (100 lb) block is in equilibrium. All wheels and…

A:

Q: A coating is being applied to reduce the reflectivity of a pane of glass to light with a frequency…

A: As given, The frequency, f=4.54×1014 Hz Index of refraction of the material, μm=1.35 Index of…

Q: 9.) A metal has a work function of 4.8 eV. What is the maximum kinetic energy of a photoelectron if…

A: In photoelectric effect if falling light has a frequency more than the threshold frequency or work…

Q: The Earth is 93 million miles (mi) from the Sun and its period of revolution is 1 year = 31,500,000…

A: Radial acceleration is given by the formula ar=ω2rWhere, ω =2πT (T is period of revolution)

Q: 2. What is the kinetic energy of an airplane with a total mass of 50,000kg that is moving at a…

A:

Q: A ball has a mass of 12 kg. Suppose it travels at 18 m/s. Find the kinetic energy possessed by it.

A: Given data:  Mass (m) = 12 kg Speed (v) = 18 m/s Required: Kinetic energy (KE)

Q: Problem 3: Monochromatic light of wavelength 441 nm is incident on a narrow slit. On a screen 2.00 m…

A:

Q: Find the volume of a liquid present i

A: Given data;  Volume of liquid present in a dish of dimesnions are;    10 cm× 10 cm× 5 cm

Q: A 50 kg gorilla is sitting on the limb of a tree 4 meters above the ground. What is the potential…

A: We know thatU=mghHereU=potential energym=mass of objectg=gravity accelerationh=height from refrence…

Q: When a 2-kg block is suspended from a spring, the spring is stretched a distance of 40 mm. Determine…

A:

Q: What is the acceleration of the loop when -3.00 cm/s? Express your answer with the appropriate…

A:

Q: 4. (14.28) A 28-g ice cube at its melting point is dropped into an insulated container of liquid…

A:

Q: There are eight identical charges with magnitude Q Coulombs located at the corners of a cube. Four…

A:

Q: The units of a magnetic field could be: a. C·m/s B. C·s/m C. C/kg D. kg/C·s E. N/C·m

A:

Q: It takes twice as much work to stretch a spring from 9 to 10 inches as it does to stretch it from 8…

A: Let natural length is L and spring constant is k Now, W1 = (1/2)k[(10-L)2 - (9-L)2]  W2 =…

Q: Find the mass of cork.

A: Given data;  A cork having following data;  Volume, v= 25 cm3 Density=0.25 g cm-3Find mass of cork ?

Q: A grating with 10000 lines per centimeter is illuminated by a monochromatic light. Determine the…

A:

Q: Q1/The block of weight (w) is supported by arope that is warpped two and one half time around the…

A:

Q: Two point charges with charges q₁ = 3.5 × 10-6 C and q₂ = 7.5 × 10-6 C are initially very far apart.…

A: Given that,

Q: A conical water tank has its top at ground level (consider this to be the x-axis) and its base 12 ft…

A:

Q: 27.3 In a 1.25 T magnetic field directed vertically upward, a particle having a charge of magnitude…

A:

Q: A piece of stone thrown vertically upwards. It reaches the maximum height in 6 seconds.if the…

A: Given data:  A stone thrown vertically upward Time taken to reach maximum height (t) = 6 s…

Q: The electric potential energy of a charged object depends on the voltage it is subjected to by E=QV…

A: Energy Trasfer, E=QV where Q is the charge on the object in Coulombs (C) and V is the voltage in…

Q: The polarization P of a dielectric material positioned within a parallel-plate capacitor is to be…

A:

Q: 29 hot air balloons have a mass with a payload (without the air inside) of 200 kg, the temperature…

A:

Q: A 3.00-kg fish is attached to the lower end of a vertical spring that has negligible mass and force…

A: Using energy conservation we can calculet speed . So kinetic energy 1/2mv^2=1/2kx^2 Then velocity…

Q: Determine the total charge entering a terminal between 2s and 3s if the current passing the terminal…

A: Current is dependent on voltage between 2 terminals. This is called Ohm's law. More is the potential…