12,762 Answered Questions for the topic physics

Physics

09/16/22

Can anyone help me with this question??
You are driving to your friends' house to pick them up to go to the movie theatre. The movie starts in 40 minutes. It takes you 10 mins to drive to your friends', and from there 15 more minutes to... more
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Physics

09/15/22

particles q1=+8.0 uc , q2=+3.5 uc and q3 =-2.5 uc are in a line

forces and multiple charges
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Physics

09/15/22

Newton's 2nd Law Based Question
A proton in a particle accelerator moves in a straight line as its speed increases from 2.61 × 105 m/s to 7.8 × 105 m/s as it travels a distance of 18.3 cm with constant acceleration.I got 7.93 *... more
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Physics

09/15/22

Newton's 2nd Law Based Question
A 1.81-kg drone is flying over a lake. With both the x and y directions horizontal (that is, viewing the drone from above), the drone's velocity changes from (3.91 m/s)i + (0.00 m/s)j to (9.67... more
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Physics

09/15/22

Newton's 2nd Law Based Question
A car with a mass m = 1280 kg is moving at a speed s = 25.9 km/h and needs to stop in a distance d = 30.5 m. a) Write an expression for the magnitude of the net force on the car as it is stopping... more
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Physics

09/15/22

Find the speed, in mph, at which the sports car was driven around the circular track.
Performance tests of an automobile typically include measurements of the car’s handling capability, i.e. how well the tires can “grip” the road. In one standard test, the car is driven on a... more
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Physics

09/15/22

Find the centripetal acceleration, in m/s^2, of the satellite.
A satellite moves in a circular orbit around the Earth at an altitude of 413 km and a speed of 17,100 mph. Find the centripetal acceleration, in m/s2, of the satellite. (Assume the Earth is a... more
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Physics

09/14/22

Find the magnitude and direction of the resultant R of the three vectors shown in Figure 1.3.

Find the magnitude and direction of the resultant R of the three vectors shown in Figure 1.3. The vectors have the following magnitudes: A = 5.0, B = 7.9, and C = 8.0. Express the direction of the... more
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Physics Math Science

09/14/22

Please help with calculating force on particle.
T‎wo fix‎ed par‎ticles, ea‎ch of ch‎arge 5.0x10-6, are 24 cm a‎part. wha‎t for‎ce do th‎ey exe‎rt on thir‎d pa‎rticle of c‎harge -2.5x10-6 t‎‎hat is 13 cm from eac‎h of th‎emExpress answer in... more
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09/14/22

Lattice Energy Question
Does NaCl or Na2O have the largest lattice energy?
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Physics

09/14/22

The position of a particle is given by r = (at2)i + (bt3)j + (ct -2)k, where a, b, and c are constants.
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Physics Math Trigonometry

09/14/22

Help me solve this please
Water from a fire hose is directed toward a building as shown in the figure below. The water leaves the hose at a speed of vi = 40.0 m/s and at an angle of 𝜃i = 39.0° above the horizontal. The base... more
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Physics

09/14/22

A bullet comes out of the barrel of gun of length 2 m with a speed 80ms-1. The average force on the bullet is Y Newton. Find the value of Y
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Physics

09/14/22

Is the value of gravitational constant of the earth independent of the mass and radius of the earth?
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Physics

09/14/22

a sailboat is travelling north at 10km/h, relative ti the water. The water is flowing north at 5km/h. What is the velocity of the boat relative to ground?
what is the solution?
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Physics

09/14/22

A boat (with a flat bottom) and its cargo weigh 8,000 N. The area of the boat's bottom is 5 m2. How far below the surface of the water is the boat's bottom when it is floating in water? Find m
A boat (with a flat bottom) and its cargo weigh 8,000 N. The area of the boat's bottom is 5 m2. How far below the surface of the water is the boat's bottom when it is floating in water? Find m
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Physics Calculus

09/14/22

using the quadratic formula for projectile motion
if H= 0= t2-(2V0/g)t - (2h0/g) and we want to solve for t,how is the quadratic formula for the projectile t1= Vo/g + - sqrt ( (Vo/g)2 + 2ho/g )I'm confused about where the 2 on b went inside the... more
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Physics Math

09/14/22

Physics question
A car making a 110.0 mi journey travels at 46.9 mi/hr for the first 24.7 mi. At what speed must it travel during the rest of the journey so that the average speed for the entire trip is 78.5 mi/hr?
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Physics Math Angular

09/13/22

The initial angular speed when turned off and the angular deceleration.
A Turbine is rotating at constant rate, when turned off it deccelerates at a constant rate.The Turbine makes 5 complete rotations in the first second after it is switched off, it then takes another... more
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Physics

09/13/22

, describe a trip that has a (scalar) distance of 400 meters but the magnitude of the resultant displacement vector is 0 meters.
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Physics

09/13/22

how long will it take a ball to reach its highest point
ball is thrown straight up in the air with initial speed of 7.0 m/s
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Physics Math Algebra 2

09/12/22

Physics question----
A car is traveling down a highway at a speed of 100 km/h. How many kilometers does the car travel in 24 minutes?A car travels a distance of d in 60 seconds and a distance of 2d in 120 seconds. At... more
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Physics Math Science Biology

09/12/22

Senior High school Project ideas - Scientific

Hi! I’m doing a big project in Senior high school right now that plays a huge part in my graduation and would appreciate some help!I have to come up with an idea/subject that includes a good... more
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Physics

09/12/22

Please show work!
Three vectors are shown in the figure. Their magnitudes are given in arbitrary units. Be sure to complete all parts (a) through (g).   a)  Determine the x-component of each of the three vectors... more
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Physics

09/12/22

Can you please show work?
A ball is thrown horizontally from the roof of a building 9.4 m tall and lands 9.4 m from the base. What was the ball's initial speed? Express your answer using two significant figures. 
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