Evaluate the emf supplied by the battery

Assignment Help Physics
Reference no: EM13538969

When a battery is connected to a 89.0-? resistor, the current is 3.91 A. When the same battery is connected to a 417.0-? resistor, the current is 0.848 A.

a) Find the emf supplied by the battery.

b) Find the internal resistance of the battery.

Reference no: EM13538969

Questions Cloud

Determine what must the baseballs speed be : A pitcher claims he can throw a 0.160-kg baseball with as much momentum as a 2.50-g bullet moving with a speed of 1.50 103 m/s
Compute what is the maximum height that he reaches : A daredevil on a motorcycle leaves the end of a ramp with a speed of 36.0 m/s, what is the maximum height that he reaches
Explain the ka for the hypothetical acid : The pH of a 0.0100 M hypothetical acid, HA, is 4.00. Calculate the Ka for this hypothetical acid.
Explain what is k at 75 degrees celsius : The constant of a reaction is 3.5 x 10^-3 S^-1 at 25 degrees Celsius, and the activation energy is 33.6 Kj/mol. What is k at 75 degrees Celsius
Evaluate the emf supplied by the battery : When a battery is connected to a 89.0-? resistor, the current is 3.91 A. When the same battery is connected to a 417.0-? resistor, the current is 0.848 A. Find the emf supplied by the battery
How to calculate the delta h of sublimation of i2 : The (delta H degrees f) of TiI3 (s) is -328 kJ/mol and the (delta H degrees) for the reaction 2 Ti(s) + 3 I2(g) -----> 2TiI3 (s) is -839 kJ/MOL. calculate the (delta H) of sublimation of I2 (s), whch is a solid at 25 degrees celcius.
How long would satellite orbiting just above moons surface : The acceleration of gravity near the surface of the moon has about on-sixth the magnitude that it does on earth. How long would satellite orbiting just above the moons surface
How to calculate the number of moles of carbon dioxide : Calculate the number of moles of carbon dioxide in the final equilibrium system obtained by initially adding 1.00 mol of H2, 2.00 moles of CO2, 0.750 mol of H20, and 1.00 mol of CO to a 5.00 L reactor at 990 C.
Determine what was the average coefficient of friction : A skier traveling 12.0 m/s reaches the foot of a steady upward 18° incline and glides 11.2 m up along this slope before coming to rest. What was the average coefficient of friction

Reviews

Write a Review

Physics Questions & Answers

  Assume the net horizontal force

How several meters away is a cliff if an echo is heard 0.587 s after the original sound? Assume that sound traveled at 343 m/s on that day.

  What is the magnetic force acting on the electron

An electron is moving in the +y direction at 4.7 x 105 m/s when it encounters a magnetic field of 2.5 T coming out of the page. What is the magnetic Force (FB) acting on the electron

  How far does the sled travel on the level surface

A boy coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 6.9 m/s. how far does the sled travel on the level surface before coming to rest

  Calculate the distance between image and the second lens

A 2.5-cm-tall object is 24cm to the left of a lens with a focal length of 12cm, Calculate the distance between image and the second lens

  Compute the period of the satellites orbit

A satellite moves in a circular orbit around Earth at a speed of 4439 m/s. Determine the period of the satellites orbit

  Find what initial speed should the puck have

A hockey puck slides over ice with \mu _k = 0.013. What initial speed should the puck have so it travels the 56 m length of the rink

  What is the magnitude of the acceleration of the object

An object starts from rest at t= 2 s at an initial position of x = 7.2 m and moves with constant acceleration. What is the magnitude of the acceleration of the object

  What is the magnitude of the apparent weight

A hotel elevator ascends 110 {rm m} with a maximum speed of 4 {rm m/s}. Its acceleration and deceleration both have a magnitude of 1.20 {rm m/s^2}.

  Calculate the resistance of the arteriole

An arteriole has a length of 1.25 mm and a radius of 21.9 ?m. The blood pressure drop along the arteriole is 1310 Pa. Calculate the resistance of the arteriole

  Q1 sunil walks 080 km in a direction 600 west of north then

q1. sunil walks 0.80 km in a direction 60.0 west of north then goes 0.50 km due west. what is the magnitude his

  Calculate the final velocity of the bowling ball

6.95-kg bowling ball moving at 10.0 m/s collides with a 1.60-kg bowling pin, Calculate the final velocity (magnitude and direction) of the bowling ball

  What is the speed of the water in the bernoulli river

River Pascal with a volume flow rate of 3.4x10^5 L/s joins with river Archimedes, which carries 1.12x10^6 L/s, to form the Bernoulli River. What is the speed of the water in the Bernoulli River

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd