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Q. How much kinetic energy would an electron gain (in Joules) if it falls throughout a potential difference of 22000 V in a TV tube?
Q. A car is travelling at 15m/s while the driver spots a large pothole in the road a distance 45 m ahead. She immediately applies her brakes. Her acceleration is -9.6 m/s2. What is the stopping distance?
What is the amplitude of the oscillations . Could you think of a simple method for determining the focal length of a converging lens.
If the distance between two slits is 0.031 mm and the distance to a screen is 2.50 m, find the spacing between the first- and second-order bright fringes for yellow light of 500 nm wavelength.
A 6 kg box is held at rest by two ropes that form a 30 degree angle with the vertical. and external for F acts vertically downward on the box.
What is the angular momentum of a 3.2 kg uniform cylindrical grinding wheel of radius 12cm while rotating at 1400 rpm.
An 24 g rifle bullet traveling 370 m/s buries itself in a 4.8 kg pendulum hanging on a 2.6 m long string, which makes the pendulum swing upward in an arc. find the maximum vertical displacement of the pendulum.
Find out the magnitude of the acceleration of the electron. How large is the pulling force it the wagon is moving with a constant speed.
How many kilocalories of heat are produced when the brakes are used to bring a 930 kg car to rest from a speed of 102 km/h.
What would be the radius of curvature of the cornea
At t=0 a grinding wheel has an angular velocity of 20.0 rad/s. It has the constant angular acceleration of 29.0 rad/s^2 until a circuit breaker trips at time t = 2.20 s. From then on, it turns through an angle 435 rad as it coasts to a stop at cons..
An elastic cord is 64 cm long when a weight of 56 N hangs from it and is 69 cm long when a weight of 83 N hangs from it. What is the "spring" constant of this elastic cord.
The electric field in a region of space is oriented along the positive y axis. A circle of radius R is placed in xz-plane. The flux of the electric field by this circle is Φ. The same electric field passing through a second circle of radius 2R parall..
Find the force necessary to start the crate moving, given that the mass of the crate is 32 {rm kg} and the coefficient of static friction between crate and floor is 0.60.
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