Problem 1. A 16 gram mass is moving at 30 cm/sec while a 4 gram mass is moving in an opposite direction at 50 cm/sec. They collide head on and stick together. Their velocity after collision is?

Q: An object is thrown vertically upward from a point 32 feet above the ground with an initial velocity...

A: Let us assume upward as positive direction and downward as negative direction. Given Initial velocit...

Q: The figure below shows a solid conducting sphere with radius R = 7.00 cm. Upon inspection, the elect...

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Q: Suppose that 3 J of work is needed to stretch a spring from its natural length of 32 cm to a length ...

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Q: Susie Small finds she weighs 300 N. Calculate her mass.

A: Given data:  Weight (W) = 300 N Required: Mass (m) 

Q: You apply a force of 15.ON to a box and measure its acceleration to be 0.4 m/s^2. Calculate the mass...

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Q: Certain sharks can detect an electric field as weak as 1.0 μV/mμV/m. To grasp how weak this field i...

A: Given data:  Electric field (E) = 1.0 μV/m = 1.0×10-6 V/m Potential difference (ΔV) = 1.5 V Required...

Q: Question 35 The electric field lines point in the direction of O increasing potential O decreasing p...

A: Introduction: The electric field is defined as the electric force per unit electric charge, it is a ...

Q: A small glass bead has been charged to 8.0 nC. What is the magnitude of the electric field 2.0 cm fr...

A: Given data:  Charge (q) = 8.0 nC = 8.0x10-9 C Distance (r) = 2.0 cm = 0.020 m Coulomb constant (k) =...

Q: When two point charges are 2.0 cm apart, each one experiences a 1.0-N electric force due to the othe...

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Q: Three long, straight wires are mounted on the vertices of an equilateral triangle as shown in the fi...

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Q: 3. A motorcycle travels along the x- axis. The velocity versus time ( v-t) graph of his motion is sh...

A: Below is the graph.

Q: • Part A A 1.30 mm-diameter ball bearing has 2.30×10° excess electrons. What is the ball bearing's p...

A: Given data:  Diameter (d) = 1.30 mm = 1.30×10-3 m Number of excess electrons (n) = 2.30×109 Required...

Q: The initial speed of a body is 5.20m/s. What is its speed after 2.50s if it accelerates uniformly at...

A: Given data:  Initial velocity (Vi) = 5.20 m/s Time (t) = 2.50 s Acceleration (a) = 3.00 m/s2 Require...

Q: Ginny lifts a 17 kg super spud 0.5 m off the ground and did 85 J of work by placing the potato on a ...

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Q: Find the speed of an electron that has a kinetic energy of 1.62 eV. 1.602 x 10 J. Answer in units of...

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Q: A metallic sphere of radius 5 cm is charged such that the potential of its surface is 100 V (relativ...

A: Radius of a sphere is 5 cm Potential at a surface of sphere is 10 volt  

Q: Find the number of electrons passing every second through a cross-section of a wire if the current c...

A: we know current I = Q/t where Q = charge  t= time of flowing for electron charge Q =ne=n *  1.6 * 10...

Q: If an electron is accelerated from rest through a potential difference of 9.9 kV, what is its result...

A: Given Information:- Potential difference is ∆V=9.9 kV=9.9 kV×103 V1 kV=9.9×103 V Magnitude of charge...

Q: the system shown in Fig. E5.34. Block A weighs 45.0 N, and block B weighs 25.0 N. Once block B is se...

A: We know that let the mass of block A is WA= 45 N and the mass of the block B is WB= 25 N   We have g...

Q: Three equal charges +Q are at three of the corners of a square of side d. A fourth charge +Q of equa...

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Q: +2.8 x 10-8 C 0.0025 m •B 0.0050 m •A 0.0025 m -2.8 × 10-8 C

A: separation between A and B=0.005m charge = 2.8×10-8C Distance between charge and both point A and B=...

Q: Bullet shot horizontally T= 0.68s Initial velocity = 800m/s Target is 550m from rifle g= 10m/s^2 The...

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Q: A fisherman is fishing from a bridge and is using,a "39.0-N test line." In other words, the line wil...

A: Given force F =39.0N acceleration a =2.29m/s^2 We have to find weight of the heaviest fish that can ...

Q: Multiple Choice.

A: Required:- We need to calculate the electric flux through the surface S1.   Formula:- According to G...

Q: (a) ideal ammeter (Give your answer in mA.) mA (b) ideal voltmeter (Give your answer in volts.) (c) ...

A: We know that  we have a circuit is given as  a) By the KVL we get that  -∆V+10I+RI=0 -5.40+10I+9.40...

Q: Calculate the speed of a proton with a kinetic energy of 1.62 eV. Answer in units of m/s.

A: As per the answering guidelines we will solve the first problem. Please upload rest of the problem s...

Q: A Gaussian surface with rectangular shape has a positive point charge +q at its center, as shown in ...

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Q: u see a jet making a landing in the northern direction, moving at a speed of 90m/s right after touch...

A: We know that the first equation of motion is given as  v = u+at  where v is the final velocity of th...

Q: The figure below shows a disk of radius 0.50 m is oriented with its normal unit vector n making an a...

A: Electric flux =2×103 N-m2/c Magnitude of electric field =10×103 N/C RRadius of disk= 0.5

Q: stone weighing 100N is thrown vertically upward with a velocity of 39.2 m/s.  Find its a. Potential ...

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Q: C 580 N 1330 N 1.2 m 1.2 m 1.8 m 1.5 m The reaction at A is nearest to: B

A: In order to determine support reaction at A we take moment at point B . Clockwise moment is taken as...

Q: Given the equation of the displacement x of a certain object at any time t x = 2t + 3t² + 10, in met...

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Q: To measure her speed, a skydiver carries a buzzer emitting a steady tone at 1800 Hz. A friend on the...

A: Given: The frequency of the steady tone emitted by the buzzer (source), fs = 1800 Hz. The frequency...

Q: Two students are on a balcony 18.6 m above the street. One student throws a ball (ball 1) vertically...

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Q: Part A A small sphere with mass 1.80 g hangs by a thread between two large parallel vertical plates ...

A: Given: Mass of sphere =1.80 g=1.8×10-3 kg distance between parallel plates= 5.00 cm=5×10-2 m Charge ...

Q: Replace the couple and force shown by a single force F applied at a point D. Locate D by determining...

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Q: A disk which has an area of 0.08 square meters and is tilted at an angle of 75 degrees with respect ...

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Q: Order the circuits according to their power usage, from highest to lowest. All batteries are the sam...

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Q: An ideal air-filled parallel-plate capacitor has circular plates that carry equal but opposite charg...

A: Given: The original capacitance is Co. The final dimension of the capacitor doubled ( diameter and s...

Q: A mountain climber stands at the top of a 20.0 m cliff that overhangs a calm pool of water. She thro...

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Q: To recharge a 12 V battery, a battery charger must move 3.7 x 10° C of charge from the negative term...

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Q: From the figure below, what is the electric flux on surface a if q = 8.854 x 10-12 C. (e0 = 8.854 x ...

A: Given data:  Three charges enclosed by surface a +2q, +q and - q q = 8.854×10-12 C ε0 = 8.854×10-12 ...

Q: Two identical small charged spheres are a certain distance apart, and each one initially experiences...

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Q: The figure below shows two oppositely charged conducting plates with an equal magnitude of surface c...

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Q: Careful measurement of the electric field at the surface of a black box indicates that the net elect...

A: εo = 8.854×10-12 C2/N.m2  Magnitude of Flux is Φo = 9×103 N-m2/C   

Q: If the electric potential at a point in space is zero, then the electric field at that point must al...

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Q: Consider the circuit shown in the figure below. (Let R = 30.0 N.) 25.0 V 10.0 N 10.0 N b 5.00 N. R 5...

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Q: Power in an Electric Heater An electric heater is constructed by applying a potential difference of ...

A: Given,         V = 120 V       R = 7.75Ω  

Q: An aluminum wire having a cross-sectional area equal to 4.20 10-6 m2 carries a current of 3.00 A. T...

A: Given cross-sectional area equal to 4.20  10-6 m2 . current of 3.00 A. The density of aluminum is 2....

Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.