Q: DIFFERENTIATE THE HAZARD AND DISASTER.
A:
Q: Two points in a plane have polar coordinates (2.40 m, 40.0°) and (4.50 m, 110.0°). (a) Determine th...
A: The cartesian coordinates of a point is given by ax = acosθ ay = asinθ, where a is the magnitude of ...
Q: A ball dropped from the rooftop of a building takes 2.0 s to reach the ground. What is the height of...
A: Given Initial velocity of the ball (u) = 0 Time taken = 2. 0 sec
Q: 12) A nonuniform electric field is directed along the x-axis at all points in space. This magnitude ...
A: Since electric field is only along the axial direction. Thus the flux linked through the curved surf...
Q: The force of gravity on a 6-kg mass is O twice as strong as the force of gravity on a 3-kg mass half...
A: Force due to gravity on a body is given by F = mg, where m = the mass of the body and g = accelerati...
Q: A ball is thrown downward at 16 m/s from the roof top of the building 50 m high. What is the velocit...
A:
Q: A 1-lb stone is dropped down the “bottomless pit” at Carlsbad Caverns and strikes the ground with a ...
A: Let h be the height of pit. kinetic energy =12mv2 height, h=v22g
Q: In your own words, describe how electrically neutral bodies become charged by the following methods....
A:
Q: 11. An aluminum ring of radius r, = 5.00 cm and resistance 3.00 x 10-4 N is placed around one end of...
A:
Q: Two charged particles are observed in vacuum. The details of the particles are as follows: Particle ...
A:
Q: The speed of light is about 3.00 × 10$ m/s. Convert this figure to miles per hour. (follow rules of ...
A:
Q: 1. In an experiment, a shearwater (seabird) was taken from its nest, flown 5150 km away, and release...
A:
Q: The total electric flux from a cubical box of side 28.0 cm is 1.45x10’N/m²/C². What charge is enclos...
A:
Q: At a rock concert, a 10 kW speaker is located on one side corner of the stage. If 2% of the speaker...
A:
Q: 14. What is a free-body diagram? a. It’s a sketch of a moving body that shows internal forces of the...
A: 14- To define free body diagram. 15- To define rigid body condition.
Q: A driver finds that her car will descend the slope 01 = 3.0° at a certain constant speed with no bra...
A: Given information: The inclination at which the car moves with constant velocity (θ) = 3.00 We know ...
Q: What is the angle of refraction when light in water (n = 1.33) enters cubic zirconia (n = 2.15) at a...
A:
Q: a tuning fork oscillates at 284 hz in air. compute the wavelength of the tone emitted at 25 degrees ...
A: velocity of sound in air at 25 degree celcius is equal to v = 346. 3 m/s relation b/w the wavel...
Q: 7. Which of the following is the condition for the three-force theorem in mechanics? a. The force sy...
A: 7. Three forces should be in the same plane , equilibrium
Q: A wire with a temperature coefficient of resistance (-0.0060/C) has a resistance of 5.64 at 20° and ...
A: Given: Temperature coefficient of first wire, α1 = -0.0060/C Resistance at temperature of first wire...
Q: A convex mirror has a radius of curvature of 0.530 m . For a person 6.90 m from the mirror, find a)...
A:
Q: Consider the two vectors A = 2 i - 2j and B = - i- 3j. (a) Calculate A +B (b) Calculate A -B (c) Cal...
A:
Q: A stone is thrown upward at 9.8 m/s. At the end of 1.0s, its acceleration is; a. zero b. equa...
A: Equation of final velocity of a body thrown upwards is given by v = u-gt, where u = initial velocity...
Q: The position of a particle changes from ĩ1 = (2.02 + 3.03) cm to 72 = (-4.0i + 3.0j) cm. What is the...
A:
Q: 40 Find cord 2 Te = ? 50 30 N ? cord 1 W = ?. weight Fw %3!
A:
Q: A block resting on a horizontal surface and weighing 200N is acted upon by a horizontal force of 100...
A:
Q: An elevator has a mass of 1300kg. What force in newtons must be applied to the elevator cable to p...
A:
Q: Ohm's Law and Circuits Example 3 Find the value of Rj in the circuit shown. Vt =??? R=40 а. b. What ...
A: R = 4 ohm I = 0.5 A V1 = 6 Volts
Q: A car is traveling at 26.0 m/s when the driver suddenly applies the brakes, causing the car to slow ...
A:
Q: Mass of ball=2.1 kg Velocity of bas=2.2 m/s Determine kinetic energy
A:
Q: Vector 1: X newtons, south Vector 2: Y newtons, west X be the number of letters in your first name E...
A:
Q: A sample of 1.00 mol of perfect gas molecules with Cp = 7/2 R is put through the following cycle: (a...
A: Calculate Q, W, dU and dH for the Constant pressure process 1→2 Constant pressure process 2→3 Isoth...
Q: The resistance of a conductor 1 mm2 in cross-section and 20 m long is 0.346 Q. Determine the specifi...
A: Given Area A=1mm2=1×10-6 m2 Length L=20m Resistance R=0.346Ω
Q: Two elevators in adjacent shafts approach each other, one from the top and the other from the bottom...
A:
Q: A spherical ball is thrown vertically downward With an initial the speed of 11.35 m/s from the top o...
A:
Q: Two objects flies towards each other. When the distance between them is 1.3 km their velocities and ...
A:
Q: There is a firetruck moving with 25 m/s and honking with frequency of 550 Hz. There is a car that is...
A: Given: velocity of source vs= 25 m/s velocity of observer vo=15 m/s frequency of sound f =550 Hz spe...
Q: Find the final velocity of an object released from a height of 150m.
A: given height h = 150 m initial velocity u = 0 m/s acceleration a = acceleration due to gravity =g= 9...
Q: A point on the rim of a flywheel of radius 5 cm., has a vertical velocity of 50 cm.sec. at a point P...
A: the situation is shown below If R is the radius of circle , the velocity is along the tangent, then...
Q: 103. The graph below represents the kinetic energy, gravitational potential energy, and total mechan...
A:
Q: A wheel rotating at 400 rpm is decelerated at 12 rad/s^2. Find its angular speed after 3 seconds.
A:
Q: Calculate the frequency and energy of blue light that has a wavelength of 400nm.
A: Given that :- Wavelength λ = 400 nm Thus we can find frequency ν of the blue light as below- ...
Q: Consider the circuit shown in (Figure 1). The batteries have emfs of E1=9.0V and E2=12.0V and the re...
A:
Q: Calculate the currents in each resistor. R5 20 12V I2 = R1 50 I3 = R2 80 28 V Is = R3 30 R4 10 22 V
A:
Q: A ball is shot vertically into the air at a velocity of 57 m/s. After 5 seconds, another ball is sho...
A:
Q: 4. 3.00 L of a gas is collected at 35.0°C and 705.0 mmHg. What is the volume at STP?
A: Given Volume of gas, V1 = 3.0 L At temperature,T1 = 35.0° C And pressure ,P1 = 705.0 mm Hg Volum...
Q: A child pulls a sled upon snow covered hill. The child does 400 J of work on the sled. If child walk...
A:
Q: A wire with a temperature coefficient of resistance (-0.0060/C) has a resistance of 5.64 at 20° and ...
A: To fid temperature we have given that same resistace, therefore R1 = R2 5.64 * ( 1 + α1 ΔT ) = 5.25 ...
Q: 4. A dancer on ice spins faster when she folds her arms. This is due to A an increase in kinetic ene...
A: Concept Torque =Rate of change of angular momentumτ =dLdtIf no external torque is applied τ =0dLdt =...
Q: van de graaff generator A charged object will spark spontaneously when the electric field on its sur...
A: Electric field at surface of generator =kQR2
Who was the first African American woman to become an astronaut?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- If mass 1 and mass 3 are 14.0 kg, what is the total gravitational potential energy of the three masses?Which takes more fuel: a voyage from the earth to the moon or from the moon to the earth? Explain.The International Space Station, which has a mass of 4.94×105 kg, orbits 258 miles above the Earth's surface, and completes one orbit every 94.3 minutes. What is the kinetic energy of the International Space Station in units of GJ (109 Joules)? (Note: don't forget to take into account the radius of the Earth!) Enter answer here GJ
- A spaceship is stationed on Mars. How much energy must be expended on the spaceship to launch it out of the solar system ? Mass of the space ship = 1000 kg; mass of the sun = 2×1030 kg; mass of mars = 6.4×1023 kg; radius of mars = 3395 km; radius of the orbit of mars = 2.28 ×108 km; G = 6.67×10-11 N m2 kg-2A spacecraft with a mass of 5000kg is in circular orbit 2000km above the surface of mars. How much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4000km above the surface? (hint Total Energy = Ep+ Ek)What is the approximate escape speed in m/s from a tiny moon in orbit about Mars that has a mass of 0.97 x 1016 kg and a radius of 10.0 km. The gravitational constant is 6.67 x 10-11m3kg-1s-2
- Mars has a radius of 3 390 km and a mass of 6.4 X 10^23 kg. A space probe carrying Vikings 1 Lander is about to leave the planet. What minimum velocity must the space probe have in order to escape Mars' gravity? (Gravitational Constant = 6.67 X 10^ - 11 Nm^2/kg^2)You may have an image of Sir Isaac Newton sitting under a tree and after being hit on the head by an apple he suddenly "discovered" the Law of Universal Gravitation. In fact, the theory was a result of years’ worth of research, which in turn was based on centuries of accumulated knowledge. He is credited with determining that the following relationship is universal. The gravitational attraction between two objects varies jointly with their masses (m1 and m2) and inversely with the square of the distance (d) between them. By what percent does the force of gravitational attraction change if one mass is increased by 20%, the other mass decreased by 20%, and the separation is reduced by 25%?A satellite is traveling around a planet in a circular orbit with radius R. It moves in a constant speed of v = 1.02 × 104 m/s. The mass of the planet is M = 5.9 × 1024 kg. The mass of the satellite is m = 5.7 × 103 kg. a)Calculate the value of PE in joules. b)Enter an expression for the total energy E of the satellite in terms of m and v. c) Calculate the value of the total energy E in joules.
- Saturn's moon Titan has a radius of 2.58 × 10 6 m and a measured gravitational field of 1.35 m/s2. What is its mass?How much energy is required to lift a 10 kg rock from the surface of the Earth and place it in a circular orbit just 10 km above sea level? Assume Earth's radius is about 6371 km.A 2660-kg spacecraft is in a circular orbit 1540 km above the surface of Mars. How much work must the spacecraft engines perform to move the spacecraft to a circular orbit that is 4500 km above the surface? Express your answer to three significant figures.