A machine gun fires 60 bullets per minute, with a velocity of 700m/s. If each bullet has a mass of 50g, find the power developed by the gun. a) 1225W b) 12250W c) 122.5W d) 122W
Q: A volcano spews a 350kg rock vertically upward to a height of 550m. (a) With what velocity was the…
A:
Q: a 65kg cyclist on a 15kg bicycle starts from rest and increases his speed to 12m/s in 20s a) what…
A: The objective of the question is to calculate the power output of the cyclist and the efficiency of…
Q: The coefficient of kinetic friction between a suitcase and the floor is 0.272. If the suitcase has a…
A:
Q: A car engine supplies a power of 300,000 W while traveling at constant speed of 28 m/s. Find the…
A: Given in question - Power(P) = 300,000 W Speed(V) = 28 m/s To…
Q: 1 kWh- 1000 j/sec 1 kWh - 3400 BTUS 1. 3000 watts =3 kW %3D 2. 50,000KW = 3. 4.5 x 10^ 6 watts = 4.…
A:
Q: 7. A container factory use a 370 W motor to operate a conveyor belt that lifts containers from one…
A: Given Mass lifted m = 250 kg Displacement h = 3.6 m Time taken t= 45 s Power P = 370 W
Q: 4. An engine that worked for 46 s consumed E = 23,500 J and lifted a in 75 kg body from the ground…
A: Work done for lifting an object from the ground is equal to change in the gravitational potential…
Q: How much work is done (how much energy is required) to accelerate a 1987.5 kg car entering the…
A: According to work-energy theorem work done is equals to changes in between Final kinetic energy and…
Q: maximum power transfer takes place at an efficiency Select one: a. 25 % b. 50 % c. 75 % d. 100 %
A: The efficiency is defined as the ratio of the out put power to the in put power.
Q: A bowler accelerates a 8.5 kg bowling pin from rest to 15 m/s. If this motion takes 1.75 s, what is…
A:
Q: 15. A 1-kg object with an initial velocity vo of 14 m/s falls from a height of 240 m and buries…
A: Here, calculating the necessary force exerted by the object on the sand is solved with the help of…
Q: 6. Research the power of two different things and report back their power in watts Eg. An onland…
A: 6. Power is amount of energy transferred or converted per unit time. A solar panel can produces…
Q: 12) A 7.80 g bullet moving at 600 m/s penetrates a tree trunk to a depth of 6.0 cm. Using…
A:
Q: 1. A small motor runs a lift that raises a load of bricks weighing 836N to a height of 10.7m in…
A:
Q: A 67.3-kg boy is surfing and catches a wave which gives him an initial speed of 1.60 m/s. He then…
A:
Q: 1. A train cart in a roller coaster track is released at point A and friction is negligible. (See…
A:
Q: 5) Answer these two questions: a) List the energy conversions that occur when riding a bicycle. b)…
A: This is a question regarding the conservation of energy and the transformation of energy from one…
Q: List the energy conversions that occur when riding a bicycle.
A: In riding a bicycle
Q: Calculate the work done by a 1500 watts appliance if it runs for 300 seconds
A: As per our guidelines, we are supposed to answer only first one question in case of multiple…
Q: 27.) W out is always smaller than W in because when a machine is used, not all of the energy it…
A: 27. When a machine is used, due to the friction some of the input energy convert in to thermal…
Q: Calculate the power (in W) of an engine if it can perform 120 J of work in 3 seconds. A) 360…
A: Given:- Work is done by the engine(W) =120 J time (T)=3 sec Find:- Power to do this work in W A)…
Q: 2. A 1200 kg car is moving at 30 m/s and speeds up to 35 m/s. Find the work done on the car.
A: According to the work energy theorem, the work done is equal to the change in Kinetic energy,…
Q: 04
A: We know that, law of conservation of energy states that energy can neither be created nor destroyed…
Q: 2. Describe the relationship of power to work and energy. Use words and equations. Define all parts…
A: Answer:: Power is equal to the work done in unit time. So by definition-…
Q: How much power is needed to lift a 75-kg student vertically upward at a constant speed of 0.33 m/s?…
A:
Q: 6. A truck weighing 1,000 kg runs at 120kph carrying a load of 1,200kg at its back. It travelled at…
A: The correct option is 0J Because,
Q: UP A 46.00 kg block starts from rest at the top of a 25.0 m long 30.0° incline. Its kinetic energy…
A:
Q: 3. A piece of shattered glass falls from the 82nd floor of a building. 600 feet above the ground.…
A:
Q: In school building a 900N student runs up a 1.5-meter tall flight of stairs in 3.0 seconds. What is…
A: Given, Weight of a student mg = 900 N Run up to a height of h = 1.5 m Time taken t = 3.0 sec
Q: Actual Mechanical Advantage
A: THEVALUES PROVIDED IN THE QUESTION ARE AS FOLLOWS- LOAD = 6000 N EFFORT = 2000 N WHEEL ROTATE A FULL…
Q: A rocket sled having a mass of 1,504 kg reaches a speed of 349 " in 9 seconds. What average power…
A: Given data m=1504 kgV=349 m/sect=9 sec
Q: 1- An 18,000g object is accelerated at 2m / s', if the object is displaced 40m. What is the work…
A:
Q: You give a 5.0 kg box a quick shove up a ramp. It reaches a vertical height of 3.0 m before…
A: m = 5 kg h = 3 m vf = 0 m/s (Eth)f = 100 J g = 10 m/s2
Q: A power output of 18.0 h.p. is required to overcome friction and move a certain car at a constant…
A: The power required to move a body at a certain velocity is given by P = F×v, where F = the force…
Q: A AA battery is used to power a motor that raises a 10-g pencil tied to a string 33 meters until it…
A: Mass m of the pencil =10g=0.01kgheight h through which it is raised = 33mg the acceleration due to…
Q: The actual power output of a wind turbine with an efficiency of 45% is 1250kw. The predicted output…
A: Given data, Efficiency is given η=45 %. Output power Pout=1250 KW.
Q: Two carts have the same mass. Both carts start at rest and are pushed until one cart is going two…
A: The work energy theorem states that the work done by the net force on a body is equal to change in…
Q: Calculate the kinetic energy of a 150 g baseball moving at a speed of 40. m/s
A:
Q: A student drags a 3 kg box 5 m across a rough floor with a force of 40 N. A frictional force of 10 N…
A:
Q: 5. A 2-kg object moved from rest to a speed of 10 m/s. a) Calculate the work done on the object? b)…
A:
A machine gun fires 60 bullets per minute, with a velocity of 700m/s. If each bullet has a mass of 50g, find the power developed by the gun.
a) 1225W
b) 12250W
c) 122.5W
d) 122W
Trending now
This is a popular solution!
Step by step
Solved in 2 steps