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Q: ball of mass 2 kg with speed 20.0 m/s collides with a wall and bounces back with a speed of 15 m/s.…
A: initial momentum=2x20=40 kg m/sfinal momentum=2-15=-30 kg m/sNegative sign show that , opposite…
Q: A propane tank explodes into three pieces of equal mass. After the explosion, one of the masses has…
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Q: One of the safety features present in automobiles is an airbag. During a collision or an accident,…
A: During an impact (collision accident) car has high negative acceleration. This high acceleration is…
Q: A mass of 5000 kg is raised through a height of 10 meters in 20 seconds. What is (a) the work done…
A: Solution: (a) Work done in raising a mass up to certain height is given by: W=mgh Here, m is the…
Q: In a shooting range, a soldier fired his rifle. If the barrel rifle is 58 cm long and has an of…
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Q: Scalar or dot product of vectors 9i + 6j + - 4k and 1i + 3j + 0k?
A: Solution: given that A = 9i + 6j + - 4k B = 1i + 3j + 0k to find the dot product
Q: se in potential energy? (b)What is the work done on the hollow block at this height? (c)If the…
A: Given values:- Mass of hollow block,(m)=2 kg ----(1) Height,(h)=5 m -----(2) Acceleration due to…
Q: Under what conditions can you apply the law of conservation of energy? Conservation of linear…
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Q: An object with a mass M and a velocity v undergoes a collision and encounters a force of F for a…
A: Since there are multiple sub parts posted, we will answer the first three sub parts. 1) According to…
Q: 11 67KN Go Resultant-? 15° GGKN 50KN 18 KN
A: Given value--- all value given in circuit. We have to find--- resultant?
Q: 1. In 1896 in Waco, Texas, William Crush of the "Katy" railroad parked two locomotives at opposite…
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Q: what is the momentum of 100 kg traveling 8m/s?
A: Momentum is defined as product of mass (m) and velocity(v). Momentum is denoted by 'p'. p = m × v…
Q: A machine has an efficiency of 25%. Energy is fed into the machine at the rate of 1kw. What is the…
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Q: electron of mass 9.11E(-31) kg has a momentum of 2.61E(-22)
A: Given Data : Mass of electron(m)=9.1×10-31 kg Momentum(P)=2.61×10-22 kg-m/s
Q: Magnitude in Kilo-Newton (kN) Your answer Angle in (Deg.) Your answer Figure 1 FA=8 kN 40 FB=6 kN…
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Q: An object of mass 5 kg moves at a certain speed and thus has a linear momentum. What would be its…
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Q: Suppose that 2 J of work is needed to stretch a spring from its natural length of 32 cm to a length…
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Q: If the momentum of a flying brick is 32 kg x m/s and it's mass is 5 kg. Calculate its velocity?
A: Introduction : In this question we are provided with value of momentum and mass . With these data…
Q: A spring has a natural length of 16 cm. If a 25-N force is required to keep it stretched to a length…
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Q: A student of mass 50 kg caries a bag weighing 4000g from the ground floor to his class on the first…
A: Work done by boy = Change in potential energy Potential energy at some height H = E = MgH Where M…
Q: Scalar or dot product of vectors 2 i+-6j+ -3 k and -2 i+-4j+-8 k is:
A: A→ = 2i^ - 6j^ - 3k^B→ = -2i^ - 4j^ - 8k^
Q: As a gasoline engine is running, an amount of gasoline containing 15,000J of chemical potential…
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Q: A spring needs a force of 7 N to compress it 38 cm. How much work is required to stretch the spring…
A: Given: Force, F=7 N x=38 cm r=0.35 Let us determine the work done required to stretch the spring 35…
Q: An object has its velecity increased by a factor of two, the kinetic energy is increased by a factor…
A: Let the mass of the object = m Let the initial velocity = v
Q: 134. Astronomy About 65 million years ago an aster- oid struck Earth in the area of the Yucatan…
A: (a) The diameter of the asteroid is 10 km or 10000 m, the radius of the asteroid will be 5000 m.…
Q: A 12-kg cannonball is fired with a velocity of 12 m/s from 26 m above the ground. It hits a target…
A: mass = 12 kg initial velocity = 12 m/s initial height = 26 m final height = 13 m
Q: in What is the momentum of a man of mass 75 kg when he walks with a uniform velocity of 2 ms?
A: Given data: Mass (m) = 75 kg Velocity (v) = 2 m/s Required: Momentum (P)
Q: In the figure below, both the ceiling and the ruler accelerate together at 2.7 m/s2 in the +y…
A: Given Data: Acceleration of the system , a=2.7ms2 in +y direction. Weight of the pan , Wp=6N.…
Q: If the momentum of a flying brick is 24 kg x m/s and it's mass is 3 kg. Calculate its velocity?
A: Introduction : In this question we are provided it value of mass and momentum . With these data we…
Q: (c) Use both methods to calculate ā · b for each of the following cases: (i) if ā = (-4, –9) and b=…
A: Given data: (i) The coordinate of the vector is, a→=-4, -9b→=-1, 2 (ii) The magnitude of vectors and…
Q: If an object’s KE is zero, what is its momentum?
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Q: If the momentum of a flying brick is 62 kg x m/s and it's mass is 13 kg. Calculate its velocity?
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Q: If 6 J of work are needed to stretch a spring from 6 cm to 8 cm and 10 J are needed to stretch it…
A: Given: First work W1 = 6 J. Second work W2 = 10 J.
Q: If a closed system has 500 J of energy right now, how much will it have in five minutes?
A: Given: Energy = 500 J System type:- Closed Time = 5 minutes Asked: Energy left…
Q: One vector has magnitude 18 units and another 5.5 units. Find their scalar product if the angle…
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Q: yA 60° А 3D 10.0 30° 30° 53° D = 20.0 37° 10 С %3D 12.0 F = 20.0 В 3 5.0
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Q: If A=- 2i+2j and B = -i+3j-2 k, find the scalar product of the vectors A and (-2A + 3B}?
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Q: Given: The energy equivalent of one gallon of gasoline is 1.3 x 10° J. A compact car has a mass of…
A: Given: The energy equivalent of one gallon of gasoline is Ee,gasoline=1.3×108 J/gal, The mass of…
Q: *7.9 (a) Find H at (0, 0, 5) due to side 2 of the triangular loop in Figure 7.6(a). y 10 A (a)…
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