You move a 50-kg crate by pushing it with a 120N force at an angle of 42 degrees above the horizontal as shown in the figure. You push the crate to keep it moving with constant velocity. What is the magnitude of the normal force on the crate that you pushed?

Q: The capacitor of a defribrillator with 1 μF is charged to 9000 V. Calculate the stored charge.

A: The stored  potential energy in capacitor  is by the  Q=CVU=QV2U=CV22 Energy stored in the capacitor…

Q: What is known as the change in position of an object? O displecment O speed O velocity none of the…

A: To identify :  The change in position of an object is known as ____

Q: ) An electron is accelerated through a potential difference of 25 kV. Calculate the de Broglie…

A: Voltage, V = 25 kV = 25×103 V = 25,000 V de Broglie wavelength of the electron, λ = ?

Q: A certain string just breaks when it is under 25 N of tension. A boy uses this string to whirl a 2…

A:

Q: An egg is thrown horizontally off a roof which is 81 m high with an initial velocity of 6m/s. How…

A:

Q: Find voltage Current=2 A Resistance=2 Ohms

A: Given value--- current = 2 Amp . resistance = 2 Ohms. We have to find-- Voltage?

Q: 1. What is the electric potential 2.5 x 10-15 m away from a proton (+e)?

A: Write the given values with the suitable variables. r=2.5×10-15 mq=+e=+1.6×10-19 C Here, r is the…

Q: An atom consists of 8 protons, 9 newtons and 8 electrons. What is it's atomic number? Select one:…

A: Given Number of Protons (np) = 8  Number of neutrons (nn)= 9  Number of electrons (ne )= 8  Atomic…

Q: A truck driver is broadcasting at a frequency of 26965000Hz with a CB radio. Determine the…

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Q: During a certain time interval, the angular position of a swinging door is described by 0 = 4.94…

A:

Q: Why is the answer not approx 0.58 kWh as P = (0.2)(120) = 24 W = 0.024 kW  and if E = P*t then E =…

A: Yes  Your answer 0.58 kwh is correct answer In previous answer time  one day 24 hour It alredy time…

Q: potential of 9 V and the upper plate is at a potential of 0 V, what is the magnitude of the electric…

A: A)         Given that                        The thickness of the dielectric material is (r) = 4.5cm…

Q: a) One ton of TNT releases 4.18 gigajoules of energy. The metric prefix giga means billion. How much…

A: Given Energy released = 4.18 gigajiules We have to calculate (a) How much mass could be converted to…

Q: What happens to the light passing through the medium when there is a critical angle? Light…

A: Given :- light passing through the medium when there is a critical angle.

Q: 120 km/hr within 2 sec, and wing at a speed of 40 km/h accelerate uniformly to a speed of 100 km/h…

A: Given :-. Car travel with the initial velocity of the vi = 40 km/h =  11.11 m/sec  The car velocity…

Q: A force of 145.0 Newtons was applied by Jing to Nescy whose mass is 80.0 kg and is just resting at…

A: Given force(F)=145.0 N Mass(m)=80.0 kg Required Horizontal acceleration (a)=?

Q: Find the value of force applied Work done=20 J Displacement=1.33 m

A: Given data : Work done=W Displacement=d   To find : Force applied

Q: is subject to three F1-20i+ 30 jN F3= 2i + 2j N Find the A 6 Kg object forces 50j N acceleration of…

A:

Q: Describe the arrangement of the electromagnetic waves

A: Please note : As per answering guidelines I can answer the first question only. Since, this is not a…

Q: 1. If two thermometers, one reading oc and the other K, are inserted in the same system, under what…

A: Temperature is hotness or coldness of body. It gives the idea of thermal energy in body. Many units…

Q: 1. ) The magnetic flux through a coil containing 10 loops changes from 20Wb to-20Wb in 0.03s. Find…

A: Given data: Number of loops, N=10 Initial flux, ϕi=20 Wb Final flux, ϕf=-20 Wb Time taken, dt=0.03…

Q: If the horizontal component of a projectile's initial velocity is 5 m/s, after 4 seconds it will be:

A: In projectile motion horizontal component of velocity don't have acceleration so from equation of…

Q: A Lightning McQueen toy car with a 10 cm height is placed 30 cm in front of a concave mirror. The…

A: height of object (h) = 10 cm object distance (d) = 30 cm focal length (f) = 20 cm

Q: (Blocks A and B with masses m and M, respectively, rest on a frictionless inclined surface with the…

A:

Q: Hinata throws a 0.3-kg volleyball at the wall. With a velocity of 3.2 m/s, the volleyball hits the…

A: mass of volleyball (m) = 0.3 kg Initial velocity (u) = 3.2  msFinal velocity (v) = - 2.1 ms

Q: Q.4) Determine conductive resistance r (in m³ K/W) of a 60 m³ plane wall composed of 2 layers in…

A: Two layers of wall is in series. For layer 1: Thickness, δ1=380.00 mm=0.38 m Thermal conductivity,…

Q: A wire with a resistance of 6.0 is drawn out through a die so that its new length is three times its…

A:

Q: A boll rounds a 28 m radius curve at 6 m/s. The magnitude of it's acceleration in m/s²

A:

Q: A current of 5.5 A flows through a conductor for 7.6 s. What amount of charge passes through the…

A: Given current I = 5.5A Time T = 7.6s

Q: (COLLAB) A new design of Saturn 12 rocket with mass 1.72 x106 kg has a propulsion engine that can…

A: Given:-  The mass of the rocket is m =  1.72 x106 kg The ejection speed of the gas is  vf = 390.04…

Q: An object, starting from rest, moves with constant acceleration of 4 m/s2. After 8 s, its speed is O…

A: From equation of motion we know that , V= u + ft, where f= constant acceleration.

Q: Two parallel wires are separated by 0.25 m. Wire a alcarrues 5.0 A and wire B carries 10 A, both…

A:

Q: What is an example of random error in an experiment?

A: We want to define  random error and some examples of it

Q: A boll rounds a 28 m radius curve at 6 m/s . The magnitude of it's acceleration in m/s²

A: Given data Radius of the curve (r) = 28m Velocity of the hall(v) = 6m/s

Q: 10) In the figure, the current in a solenoid having no appreciable resistance is flowing from b to a…

A:

Q: Explain how to solve difference equations using the iterative method.

A: Iterative fomula yn+1(x) = y0 + ∫x0xf(t,y0)dt.........................(1)

Q: 7. Billy Bob is trying to decide whether to push a 50 kg dresser up a 4.5 m ramp of lift the back of…

A: (a). The ideal mechanical advantage of ramp = Length of the ramp / Height of the ramp (b) If the…

Q: what is the mass of an object that requires a force of 90 N to accelerate at a rate 2.6 m/sec^1/2 ?…

A: Given : Force, F = 90N Acceleration rate, a = 2.6m/s2

Q: Consider the following controls of a car: gas pedal, brake, steering wheel. The control/s on the…

A:

Q: A 16 N force produce a moment of 64 Nm. the moment arm is O2m O (2^1/2) m O 8m 4m

A: Given data :- force F = 16 N torque/moment of force τ= 64 N.m

Q: Given data: Density = 1430 kg/m³ Mass = 60 kg Determine the volume

A: Given : Density = 1430 kg/m3 Mass = 60 kg

Q: A 50.0 g superball traveling at 35 m/s bounces off a brick wall and rebounds at 26 m/s. A high-speed…

A: Free body diagram gives whole idea of the forces acting. Force brings about motion and changes in…

Q: A ball is shot into the air at 30° above the horizontal. Its initial velocity is 5 m/s and lands at…

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Q: threw a ball straight upwards with initial velocity of 14.5 meter per second. Disregarding air…

A:

Q: TYPE OF LENSE, 1st, 2nd, 3rd CONTAINER COMBINED:

A: It's a concept of Optics

Q: In case of negative work the angle between the force and displacement is O 180° O 0° O 90° O 45°

A: It is possible to have a positive, negative, or zero amount of work done.

Q: The minimum speed he'd need to run off the edge of the cliff to make it safely to the far side of…

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Q: The boom in the figure is 2m long and weighs 100 N. If the 800N load is suspended 50cm from the end,…

A:

Q: At t = 0 a car has a speed of 30.0 m/s. At t = 7.63 s, its speed is 14.0 m/s. What is its average…

A: Given: The initial speed of the car is 30 m/s. The final speed of the object is 14 m/s. The time…

Q: Find the current through and the potential difference across each resistor in the figure. 5 Ω [ 5 Ω…

A:

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!