(1) (a) What is the angular momentum of a 2.8-kg uniform cylindrical grinding wheel of radius 28 cm when rotating at 1300 rpm? (b) How much torque is required to stop it in 6.0 s?

Q: 25.4 m 4 km hr hr

A: Given data: 25.4 mi/hr - 4 km/hr Here mi/hr - miles per hour km/hr - kilometer per hour

Q: Convert 155 km/hr to m/s Answer: 43 I.

A:

Q: A 3. D. 3m

A: The path diagram for the given condition is,

Q: 987 m/s = = km/hr 4392 km/h = m/s

A:

Q: A car is moving at 35.0 mi/h. Express its speed in (a) m/s .

A: The distance an item travels in a unit of time is the definition of speed in physics. In other…

Q: 10. A cyclist travels at a speed of 20 km/hour. How far will he travels in 5 hours?

A: Given data:  Speed of cyclist (v) = 20 km/hour Time (t) = 5 hours

Q: V OT OP S

A:

Q: You are given the equation(s) used to solve a problem. Write a realistic problem for which this is…

A: We have to set up a problem that will provide a solution given in the question. By identifying the…

Q: 4 Пу. i = 1´ i b. 4 II y. · * i = 1´ i d.

A:

Q: How many significant figures are in each of these measurements?

A: 0005 we know all non zero numbers are significant  all zeros in left side of the digit is…

Q: That's not the correct answer! The answer is 45 m

A: P = 1.3 MW v = 9.5 m/sCp = 0.36rho = 1.225 kg/m^3

Q: Convert 21 m/s to km/hr.

A: Given data:  21 m/s Required: The value of 21 m/s in km/hr

Q: 55F=k

A: Required :  55 F in Kelvin

Q: The deck has a mass of 1000-kg and is supported by cables A, B, and C. What are the tensions in the…

A: We have given  that the mass of object is 1000 Kg. It is supported by three cables.  As there is no…

Q: Which of the following has the most significant figures? A: 124.12 B: 124.10 C: 3.05 x 105 D: 1205…

A: The objective of the question is to identify which of the given numbers has the most significant…

Q: Find the cross product vectors A =i – 2j+ 3k and B = 2i + 3j - k

A: Given that:To determine the cross product of vectorsA=i-2j+3kB=2i+3j-k

Q: A 200-kg, 2.0-m-radius, merry-go-round in the shape of a flat, uniform, circular disk parallel to…

A: Given:mass of the disk, M = 200 kgradius of the disk, R = 2.0 minitial angular velocity, ωi = 1.2…

Q: 8. A car travels at 40kph for 2 hrs, at 50 kph for 1 hr and at 20 kph for 0.5 hr, find the average…

A:

Q: 5. A fan turns off when rotating at 850 rpm and makes 1,350 revs until it comes to a complete stop.…

A: The equation of motion is given by ω2=ω02+2αΔθ Here, ω is the final angular speed, ω0 is the initial…

Q: A monkey in space entertaining himself with bouncy balls were noted to be; one of mass 300g and the…

A: Given:m1=600gm, m2 =300gm, θ=120°, v2=6m/s The problem will be solved using the principle of…

Q: 122 km/hr = mile/hr

A:

Q: Convert 41.4 m/s to units of km/hour.

A: Given data:  Speed (v) = 41.4 m/s Required: Speed in units of km/hr

Q: Three spheres, each having a negative charge of 4.0 x 10-6c, are placed at the vertices of a…

A: Visualize the problem:

Q: What mass in kg of rain falls on the lawn in 6 h and 2 min, if each raindrop weighed 13.0 ng and on…

A:

Q: A train shown is traveling at a speed of 45mi/hr. A constant braking force of 4300 lbs is applied to…

A: As given, Initial velocity of the system, v1=45 mihr Convert the units of the velocity of the two…

Q: In the figure, block 1 has mass m₁ = 450 g, block 2 has mass m₂ = 510 g, and the pulley is on a…

A:

Q: 23 m/s to km/hr?

A: Given 23 m/s we have to convert into km/hr as we know 1km=1000m so 1 m=11000km 1hr=60 min=3600 sec…

Q: KE = (0.5) x 70 kg x (6.95 x 6.95)

A: We know that kinetic energy is given by  KE=1/2mv2

Q: 18.) Determine the amount of energy, in joules, stored in a defibrillator's 17.0 – µF capacitor that…

A:

Q: (b) The magnitude of the resultant force acting on the bracket as shown in Figure Q1(b) is to be Fr…

A: We have three forces F1, F2 and F3 where F2=200 N, F3=260 N and resultant Fr=500 N making an angle…

Q: mine the vertical component of ess your answer to two signi ive value if the force is upwa

A:

Q: 600mg=?g

A: Given ,  600 mg  We have to convert 600 mg to how much gram .

Q: 4 m2 = ? ft2 4 ft2 = ? m2

A: 1 m2 = 10.763 ft2. and 1ft2 = 0.0929 m2.

Q: Says 1.62 is wrong

A:

Q: A diver of mass 67.0 kg stands on one end of a diving board of mass 25.4 kg, as shown in the…

A:

Q: 1 Metric ton = k

A: Metric ton is  unit of weight

Q: Consider a solid cylinderical conductor with radius R= 20 cm that carries a current I = 19 mA which…

A: The magnetic field inside  a solid cylinder conductor is given by:- Bin = μ0 I r/2πR2 Here, Bin =…

Q: I need the answer to 3 significant figures

A: According to Archimedes’ principle, the volume of displaced water will be equal to the volume of the…